CN111501559A - System for assembling steel box girder of swivel cable-stayed bridge and adjusting method - Google Patents

System for assembling steel box girder of swivel cable-stayed bridge and adjusting method Download PDF

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Publication number
CN111501559A
CN111501559A CN202010264072.2A CN202010264072A CN111501559A CN 111501559 A CN111501559 A CN 111501559A CN 202010264072 A CN202010264072 A CN 202010264072A CN 111501559 A CN111501559 A CN 111501559A
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coordinate
beam body
section
monitoring device
adjustment
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罗力军
位东升
尹光顺
彭旭民
黄清
曹明明
曾德礼
王文洋
唐家睿
张美玲
黎念东
刘秀岭
蔡正东
王云
杨靖
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China Railway Major Bridge Engineering Group Co Ltd MBEC
China Railway Bridge Science Research Institute Ltd
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China Railway Major Bridge Engineering Group Co Ltd MBEC
China Railway Bridge Science Research Institute Ltd
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges

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Abstract

The invention discloses a system and an adjusting method for assembling steel box girders of a swivel cable-stayed bridge, which comprises the following steps: the beam body is arranged on the temporary support; the adjusting device is positioned below the beam body and used for adjusting the transverse bridge position and height of the beam body; the hoisting equipment is used for adjusting the mileage position of the beam body; the measuring device is used for acquiring linear measuring data of the beam body, wherein the linear measuring data comprises the mileage position, the transverse bridge direction position and the height of the beam body; the first control module is used for acquiring linear measurement data, calculating to obtain adjustment quantities of the beam body at the mileage position, the transverse bridge direction position and the height respectively, judging whether the adjustment quantities are smaller than corresponding preset critical values, if so, stopping adjusting the beam body, and defining the current state as a final target state; if not, the beam body is continuously adjusted until the adjustment amount is smaller than the preset critical value. The invention aims to improve the efficiency, the quality and the structural safety in the process of assembling the steel box girder body in the construction process.

Description

System for assembling steel box girder of swivel cable-stayed bridge and adjusting method
Technical Field
The invention relates to the field of bridge construction, in particular to a system for assembling a steel box girder of a swivel cable-stayed bridge and an adjusting method for assembling the steel box girder of the swivel cable-stayed bridge.
Background
With the rapid development of traffic networks and urban construction, various bridges spanning railways, highways, riverways and urban roads are more and more, and bridge swivel construction is often the preferred or even indispensable scheme when spanning railways and highways in order to reduce the influence on operation lines as much as possible. In recent years, the construction quantity, tonnage and span of the domestic turning bridge are developed and improved in a breakthrough manner. In order to obtain larger span, the structural form of the swivel bridge is changed greatly, and the cable-stayed bridge structure is not a T-shaped structure, a continuous beam bridge or a continuous rigid frame bridge any more and is applied more quickly; in order to control the weight of the rotating body, the main beam material does not adopt concrete any more, but adopts steel with lighter self weight; in order to obtain greater traffic co-operation guarantee, more and more bridge deck lanes are provided, so that the width of the bridge deck is wider; particularly, the railway-crossing swivel cable-stayed bridge has the advantages that the steel box girder cannot be integrally hoisted due to the fact that the steel box girder spans across an operation line during assembling construction, and the steel box girder can only be transversely and longitudinally divided into a plurality of small blocks, and then the small blocks are assembled one by one.
In the related art, the existing assembly method of the steel box girder realizes the assembly by a long-line method through the matching of an assembly jig frame and a measurement control net; specifically, manufacturing a jig frame assembly line shape according to a designed and given steel box girder manufacturing line shape; a beam section measurement control net is arranged in the splicing field, a longitudinal baseline marking tower and a ground sample datum are arranged at two ends of the jig frame, and elevation measurement datum points are arranged on the periphery of the jig frame and used as a steel box beam geometric dimension positioning datum; transversely dividing the steel box girder into multiple sections for continuous matching manufacturing, positioning by a reference end, a reference line and a central line for pre-assembling, detecting the assembled jig frame by taking the measurement control network as a reference after the girder section is assembled in each round, making a detection record, and assembling in the next round after the qualified beam section is confirmed; after the steel box girder segments are assembled, a total station is used for carrying out three-dimensional coordinate acquisition on monitoring points on the steel box girder in a measurement control network, and measuring monitoring points are arranged on a top plate and a box opening of the steel box girder; for the steel box girder with deviation of the line shape, the position relation between the girder section and the adjacent girder section is really reflected through computer modeling, and the steel box girder is reset and corrected in a computer, so that the real interface characteristic between the girder section and the adjacent girder section is obtained, the real included angle between the girder sections is further determined and corrected, and the real included angle is restored to be matched with the theoretical line shape when the steel box girder is erected at a bridge position, so that the line shape and the precision of the steel box girder assembly are ensured.
However, the assembly method of the steel box girder is complicated, a plurality of positioning references are required to be arranged on the assembly jig frame to construct a measurement control network, and after each round of beam section tire removal, personnel are required to detect the assembly jig frame by taking the measurement control network as a reference again, so that time and labor are wasted, and the automation degree is low, so that the working efficiency is low; and after the steel box girder segments are pre-assembled, the total station is used for detecting and correcting the linear shape of the steel box girder, so that the position of each segment cannot be accurately and timely adjusted in the assembling process of the steel box girder segments, and the stress condition among the girder segments is difficult to master in the actual adjusting process, so that the rotation is out of control, the girder body overturns, and the control on safety risks is very limited.
In order to ensure the efficiency and quality of the assembly of the steel box girder of the swivel cable-stayed bridge, the intelligent control of the assembly of the steel box girder of the swivel cable-stayed bridge is very necessary to be researched pertinently.
Disclosure of Invention
The embodiment of the invention provides a system and an adjusting method for assembling a steel box girder of a swivel cable-stayed bridge, which aim to solve the problems of low automation degree, low working efficiency and quality of steel box girder body assembling in the related technology.
In a first aspect, a system for assembling steel box girders of a swivel cable-stayed bridge is provided, which comprises: the beam body is arranged on the temporary support; the adjusting device is positioned below the beam body and used for adjusting the transverse bridge position and height of the beam body; the hoisting equipment is used for adjusting the mileage position of the beam body; the measuring device is used for acquiring linear measuring data of the beam body, and the linear measuring data comprises the mileage position, the transverse bridge direction position and the height of the beam body; the first control module is used for acquiring the linear measurement data, calculating to obtain adjustment quantities of the beam body at the mileage position, the transverse bridge direction position and the height respectively, judging whether the adjustment quantities are smaller than corresponding preset critical values or not, stopping adjusting the beam body if the adjustment quantities are smaller than the corresponding preset critical values, and defining the current state as a final target state; if not, the beam body is continuously adjusted until the adjustment amount is smaller than a preset critical value.
In some embodiments, two first linear monitoring devices and two second linear monitoring devices are arranged on the top surface of the beam body and located at four corners of the beam body, one of the first linear monitoring devices and one of the second linear monitoring devices are arranged along the transverse bridge direction of the beam body and form an H-section of the beam body, and the other of the first linear monitoring devices and the other of the second linear monitoring devices are arranged along the transverse bridge direction of the beam body and form a Q-section of the beam body; the measuring device respectively obtains the coordinates of the two first linear monitoring devices and the two second linear monitoring devices so as to obtain linear measuring data of the H section and the Q section of the beam body.
In some embodiments, the first control module comprises: the first calculation module is used for performing corresponding calculation according to the coordinates observed by the measuring device acquired each time;
the first linear monitoring device and the second linear monitoring device on the section of the beam body H have the following calculation formulas:
Figure BDA0002440549130000031
Figure BDA0002440549130000032
Figure BDA0002440549130000033
Figure BDA0002440549130000034
Figure BDA0002440549130000035
Figure BDA0002440549130000036
Figure BDA0002440549130000037
Figure BDA0002440549130000038
Figure BDA0002440549130000039
in the formula (I), the compound is shown in the specification,
Figure BDA0002440549130000041
the X coordinate of the first linear monitoring device is the H section after the Nth adjustment;
Figure BDA0002440549130000042
the X coordinate of the first linear monitoring device is the section of the target state H;
Figure BDA0002440549130000043
the difference value of the X coordinate of the first linear monitoring device of the H section after the Nth adjustment and the X coordinate of the first linear monitoring device in the target state is obtained;
Figure BDA0002440549130000044
the X coordinate of the second linear monitoring device is the H section after the Nth adjustment;
Figure BDA0002440549130000045
the X coordinate of the second linear monitoring device is the section of the target state H;
Figure BDA0002440549130000046
the difference value of the X coordinate of the second linear monitoring device of the H section after the Nth adjustment and the X coordinate of the second linear monitoring device in the target state is obtained;
Figure BDA0002440549130000047
is composed of
Figure BDA0002440549130000048
And
Figure BDA0002440549130000049
ofThe average value, namely the adjustment amount needed in the next step; the X coordinate is consistent with the mileage direction of the beam body, when the delta X is plus, the coordinate is adjusted to a big mileage, and when the delta X is minus, the coordinate is adjusted to a small mileage in a unit of m;
Figure BDA00024405491300000410
the Y coordinate of the first linear monitoring device is the H section after the Nth adjustment;
Figure BDA00024405491300000411
the Y coordinate of the first linear monitoring device is the section of the target state H;
Figure BDA00024405491300000412
the difference value of the Y coordinate of the first linear monitoring device on the H section after the Nth adjustment and the Y coordinate of the first linear monitoring device in the target state is obtained;
Figure BDA00024405491300000413
the Y coordinate of the second linear monitoring device is the H section after the Nth adjustment;
Figure BDA00024405491300000414
the Y coordinate of the second linear monitoring device is the section of the target state H;
Figure BDA00024405491300000415
the difference value of the Y coordinate of the second linear monitoring device of the H section after the Nth adjustment and the Y coordinate of the second linear monitoring device in the target state is obtained;
Figure BDA00024405491300000416
is composed of
Figure BDA00024405491300000417
And
Figure BDA00024405491300000418
i.e. the adjustment amount still needed in the next step; the Y coordinate is consistent with the transverse direction of the beam body and is expressed as an axis, and delta Y is'When + is adjusted to the left lane side, when Δ Y is "-", adjusted to the right lane side, unit m;
Figure BDA00024405491300000419
the Z coordinate of the first linear monitoring device is the H section after the Nth adjustment;
Figure BDA00024405491300000420
the Z coordinate of the first linear monitoring device is the section of the target state H;
Figure BDA00024405491300000421
the difference value of the Z coordinate of the first linear monitoring device on the H section after the Nth adjustment and the Z coordinate of the first linear monitoring device in the target state is obtained;
Figure BDA00024405491300000422
the Z coordinate of the second linear monitoring device is the H section after the Nth adjustment;
Figure BDA00024405491300000423
the Z coordinate of the second linear monitoring device is the section of the target state H;
Figure BDA00024405491300000424
the difference value of the Z coordinate of the second linear monitoring device on the H section after the Nth adjustment and the Z coordinate of the second linear monitoring device in the target state is obtained;
Figure BDA00024405491300000425
is composed of
Figure BDA00024405491300000426
And
Figure BDA00024405491300000427
i.e. the adjustment amount still needed in the next step; the Z coordinate is consistent with the height direction of the beam body and is expressed as elevation, when the delta Z is plus, the adjustment is carried out upwards, and when the delta Z is minus, the adjustment is carried out downwards, and the unit m is obtained;
a first judgment module for judging whether the calculated H section is obtained
Figure BDA0002440549130000051
Whether the values of the H sections are all smaller than the corresponding preset critical values or not, if so, stopping adjusting the beam body, and defining a final target state which is the H section in the current state; if not, the beam body is continuously adjusted.
In some embodiments, if
Figure BDA0002440549130000052
If the value of the distance is smaller than the corresponding preset critical value, stopping adjusting the beam body, and defining the current state as an H section target X state, otherwise, adjusting the mileage direction position of the H section of the beam body through the lifting equipment until the H section target X state is reached; if it is
Figure BDA0002440549130000053
If the value of the preset critical value is smaller than the corresponding preset critical value, stopping adjusting the beam body, and defining the current state as an H section target Y state, otherwise, adjusting the transverse bridge position of the beam body through the adjusting device until the H section target Y state is reached; if it is
Figure BDA0002440549130000054
If the value of the H section is smaller than the corresponding preset critical value, stopping adjusting the beam body, and defining the H section target Z state in the current state, otherwise, adjusting the height of the H section of the beam body through the adjusting device until the H section target Z state is reached, and when the beam body reaches the H section target X state, the target Y state and the target Z state, determining the H section final target state.
In some embodiments, the predetermined threshold value
Figure BDA0002440549130000055
0.020m,
Figure BDA0002440549130000056
0.015m,
Figure BDA0002440549130000057
And was 0.030 m.
In some embodiments, the first control module comprises: the first calculation module is used for performing corresponding calculation according to the coordinates observed by the measuring device acquired each time:
the first linear monitoring device and the second linear monitoring device on the section Q of the beam body have the following calculation formulas:
Figure BDA0002440549130000058
Figure BDA0002440549130000059
Figure BDA00024405491300000510
Figure BDA00024405491300000511
Figure BDA0002440549130000061
Figure BDA0002440549130000062
Figure BDA0002440549130000063
Figure BDA0002440549130000064
Figure BDA0002440549130000065
in the formula (I), the compound is shown in the specification,
Figure BDA0002440549130000066
the X coordinate of the first linear monitoring device of the Q section after the Nth adjustment is obtained;
Figure BDA0002440549130000067
a first linear monitoring device X coordinate of a section of the Q part in a target state;
Figure BDA0002440549130000068
the difference value of the X coordinate of the first linear monitoring device of the Q section after the Nth adjustment and the X coordinate of the first linear monitoring device of the target state is obtained;
Figure BDA0002440549130000069
the X coordinate of a second linear monitoring device of the Q section after the Nth adjustment is obtained;
Figure BDA00024405491300000610
a second linear monitoring device X coordinate of the section of the target state Q;
Figure BDA00024405491300000611
the difference value of the X coordinate of the second linear monitoring device of the Q section after the Nth adjustment and the X coordinate of the second linear monitoring device of the target state is obtained;
Figure BDA00024405491300000612
is composed of
Figure BDA00024405491300000613
And
Figure BDA00024405491300000614
the average value of (a), i.e. the amount of adjustment still needed in the next step; the X coordinate is consistent with the mileage direction of the beam body, when the delta X is plus, the coordinate is adjusted to a big mileage, and when the delta X is minus, the coordinate is adjusted to a small mileage in a unit of m;
Figure BDA00024405491300000615
the Y coordinate of the first linear monitoring device of the Q section after the Nth adjustment;
Figure BDA00024405491300000616
a first linear monitoring device Y coordinate of the section of the Q part in a target state;
Figure BDA00024405491300000617
the difference value of the Y coordinate of the first linear monitoring device of the Q section after the Nth adjustment and the Y coordinate of the first linear monitoring device of the target state is obtained;
Figure BDA00024405491300000618
the Y coordinate of a second linear monitoring device of the Q section after the Nth adjustment is obtained;
Figure BDA00024405491300000619
a second linear monitoring device Y coordinate of the section of the Q part in a target state;
Figure BDA00024405491300000620
the difference value of the Y coordinate of the second linear monitoring device of the Q section after the Nth adjustment and the Y coordinate of the target state linear monitoring device is obtained;
Figure BDA00024405491300000621
is composed of
Figure BDA00024405491300000622
And
Figure BDA00024405491300000623
the average value of (a), i.e. the amount of adjustment still needed in the next step; the Y coordinate is consistent with the transverse direction of the beam body and is expressed as an axis, when the delta Y is plus, the adjustment is carried out to the left lane side, and when the delta Y is minus, the adjustment is carried out to the right lane side, and the unit is m;
Figure BDA00024405491300000624
the Z coordinate of the first linear monitoring device of the Q section after the Nth adjustment is obtained;
Figure BDA00024405491300000625
a Z coordinate of a first linear monitoring device of a section Q in a target state;
Figure BDA0002440549130000071
the difference value of the Z coordinate of the first linear monitoring device of the Q section after the Nth adjustment and the Z coordinate of the first linear monitoring device of the target state is obtained;
Figure BDA0002440549130000072
a Z coordinate of a second linear monitoring device of the Q section after the Nth adjustment is obtained;
Figure BDA0002440549130000073
a Z coordinate of a second linear monitoring device of the section Q in a target state;
Figure BDA0002440549130000074
the difference value of the Z coordinate of the second linear monitoring device of the Q section after the Nth adjustment and the Z coordinate of the second linear monitoring device of the target state is obtained;
Figure BDA0002440549130000075
is composed of
Figure BDA0002440549130000076
And
Figure BDA0002440549130000077
the average value of (a), i.e. the amount of adjustment still needed in the next step; the Z coordinate is consistent with the height direction of the beam body and is expressed as elevation, when the delta Z is plus, the adjustment is carried out upwards, and when the delta Z is minus, the adjustment is carried out downwards, and the unit m is obtained;
a first judgment module for judging whether the calculated Q section is obtained
Figure BDA0002440549130000078
Whether the values of the Q section are all smaller than the corresponding preset critical values or not, if so, stopping adjusting the beam body, and defining the final target state of the Q section in the current state; if not, the beam body is continuously adjusted.
In some embodiments, the predetermined threshold value
Figure BDA0002440549130000079
0.020m,
Figure BDA00024405491300000710
0.015m,
Figure BDA00024405491300000711
And was 0.030 m.
In some embodiments, the adjustment devices comprise two first adjustment devices and two second adjustment devices, one of the first adjustment devices and one of the second adjustment devices being located in section H, the other of the first adjustment devices and the other of the second adjustment devices being located in section Q, the first adjustment devices and the second adjustment devices each comprising a jack;
the control device is respectively connected with the jacks on the first adjusting device and the second adjusting device, and is used for acquiring the piston leakage amount of the jack on the first adjusting device and the piston leakage amount of the jack on the second adjusting device in the H section, the piston leakage amount of the jack on the first adjusting device and the piston leakage amount of the jack on the second adjusting device in the Q section, and transmitting the piston leakage amounts to the second control module;
the second control module includes:
the second calculation module is used for calculating corresponding delta L according to the piston leakage amount of the jack of the first adjusting device and the piston leakage amount of the jack of the second adjusting device in the H section or the Q section acquired each time4aAnd Δ L is calculated4aThe formula of (1) is:
ΔL4a＝L4a1-L4a2
in the formula, L4a1Piston leakage of jack for first adjusting device, L4a2The piston leakage of the jack of the second adjusting device is measured;
a second determination module for determining the calculated Δ L4aIf not, stopping loading the adjusting device and ensuring that the jack piston leakage amount is large and the jack piston leakage amount is small; if so,the beam continues to be loaded.
In some embodiments, the first predetermined critical value is 0.010 m.
In a second aspect, an adjusting method for assembling a steel box girder of a swivel cable-stayed bridge is provided, and the method comprises the following steps: hoisting the beam body and placing the beam body on the temporary support; the measuring device acquires the mileage position coordinates of the beam body, and the first control module calculates and judges the mileage position coordinates to control the hoisting equipment to adjust the beam body until a corresponding target state is reached; starting the adjusting device to enable the adjusting device to be in contact with the bottom surface of the beam body, and enabling the beam body and the temporary support to be separated; the measuring device respectively obtains transverse bridge position coordinates and height coordinates of the beam body, the first control module respectively calculates and judges the transverse bridge position coordinates and the height coordinates to control the adjusting device to adjust the beam body until corresponding target states are reached, and when the mileage position coordinates, the transverse bridge position coordinates and the height coordinates of the beam body all reach the corresponding target states, the final target state of the beam body is obtained.
The technical scheme provided by the invention has the beneficial effects that: in the process of mounting the beam body, the adjustment amount required to be adjusted in the next step can be automatically calculated through the first control module according to a preset target position, the beam body is adjusted step by step until the beam body is in a target state, the automation degree is high, and the working efficiency is high; and because the three-dimensional coordinates of each beam body are accurately moved through calculation according to the set target state, when the linear shape of each beam body deviates in the installation process, each beam body can reach the set target state through timely and accurate adjustment of the adjustment amount, so that the plurality of beam bodies basically do not need to be adjusted after the assembly is finished and reach the set linear standard, and the beam bodies are ensured to be more accurate in position and better in quality after the final assembly is finished.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a front view of a system for assembling steel box girders of a swivel cable-stayed bridge according to an embodiment of the present invention;
FIG. 2 is a left side view of a system for assembling steel box girders of a swivel cable-stayed bridge according to an embodiment of the present invention;
FIG. 3 is a top view of a system for assembling steel box girders of a swivel cable-stayed bridge according to an embodiment of the present invention;
FIG. 4 is a front view of an adjustment device in an embodiment of the present invention;
fig. 5 is a left side view of an adjusting device according to an embodiment of the present invention.
In the figure: 1-beam body, 1 a-first beam body, 1 b-second beam body, 1 c-third beam body, 1 d-fourth beam body, 2-temporary support, 3-splicing support, 3 a-transverse distribution beam, 4-adjusting device, 4a 1-first adjusting device, 4a 2-second adjusting device, 4b 1-third adjusting device, 4b 2-fourth adjusting device, 4c 1-fifth adjusting device, 4c 2-sixth adjusting device, 4d 1-seventh adjusting device, 4d 2-eighth adjusting device, 4-1-jack, 4-2-sliding trolley, 4-3-slideway, 4-4-limiting fixing device, 4-5-graduated scale, 5-control device, 5 a-first control device, 5 b-second control device, 5 c-third control device, 5 d-fourth control device, 6-first wireless bridge, 7a 1-first linear monitoring device, 7a 2-second linear monitoring device, 7b 1-third linear monitoring device, 7b 2-fourth linear monitoring device, 7c 1-fifth linear monitoring device, 7c 2-sixth linear monitoring device, 7d 1-seventh linear monitoring device, 7d 2-eighth linear monitoring device, 8-measuring device, 8 a-fifth control device, 8 b-second wireless bridge, 9-third wireless bridge, 10-computer.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The embodiment of the invention provides a system and an adjusting method for assembling a steel box girder of a swivel cable-stayed bridge, which can solve the problems of low automation degree, low working efficiency and steel box girder body assembling quality in the related technology.
Referring to fig. 1, a system for assembling a steel box girder of a swivel cable-stayed bridge according to an embodiment of the present invention includes: the beam body 1 is arranged on the temporary support 2; the adjusting device 4 is positioned below the beam body 1 and used for adjusting the transverse bridge position and height of the beam body 1; the lifting equipment is used for adjusting the mileage position of the beam body 1; the measuring device 8 is used for acquiring linear measuring data of the beam body 1; and the first control module is used for acquiring the linear measurement data of the beam body 1, calculating and judging whether to continuously adjust the beam body 1 until the beam body 1 reaches a final target state.
Referring to fig. 1, 2 and 3, in some embodiments, a sectional bracket 3 may be disposed below the temporary support 2, and a transverse distribution beam 3a may be disposed at the top end of the sectional bracket 3, and the temporary support 2 is fixed to the transverse distribution beam 3 a.
It will be appreciated that most cable-stayed bridges require a plurality of beams 1 to be spliced together, and in some embodiments, may include four beams 1 arranged in a transverse direction: a first beam 1a, a second beam 1b, a third beam 1c and a fourth beam 1 d. In some alternative embodiments, the top surface of the first beam body 1a may be provided with two first linear monitoring devices 7a1 and two second linear monitoring devices 7a2, the two first linear monitoring devices 7a1 and the two second linear monitoring devices 7a2 are located at four corners of the first beam body 1a, wherein one of the first linear monitoring devices 7a1 and one of the second linear monitoring devices 7a2 are arranged along a transverse bridge direction of the first beam body 1a and form an H-section of the first beam body 1a, and the other of the first linear monitoring devices 7a1 and the other of the second linear monitoring devices 7a2 are arranged along the transverse bridge direction of the first beam body 1a and form a Q-section of the first beam body 1 a; the top surface of the second beam body 1b may be provided with two third linear monitoring devices 7b1 and two fourth linear monitoring devices 7b2, the top surface of the third beam body 1c may be provided with two fifth linear monitoring devices 7c1 and two sixth linear monitoring devices 7c2, the top surface of the fourth beam body 1d may be provided with two seventh linear monitoring devices 7d1 and two eighth linear monitoring devices 7d2, the third linear monitoring devices 7b1, the fourth linear monitoring devices 7b2, the fifth linear monitoring devices 7c1, the sixth linear monitoring devices 7c2, the seventh linear monitoring devices 7d1, the eighth linear monitoring devices 7d2 may be all placed at the same position as the first beam body 1a, and the first linear monitoring devices 7a1, the second linear monitoring devices 7a2, the third linear monitoring devices 7b1, The fourth linear monitoring device 7b2, the fifth linear monitoring device 7c1, the sixth linear monitoring device 7c2, the seventh linear monitoring device 7d1 and the eighth linear monitoring device 7d2 may be identical in structure, preferably being a 360 ° prism with a magnetic base.
Referring to fig. 1, 4 and 5, in some alternative embodiments, the adjusting device 4 may be disposed on the transverse distribution beam 3a and may be located on the bottom surface of the beam body 1, the adjusting device 4 may include a first adjusting device 4a1, a second adjusting device 4a2, a third adjusting device 4b1, a fourth adjusting device 4b2, a fifth adjusting device 4c1, a sixth adjusting device 4c2, a seventh adjusting device 4d1 and an eighth adjusting device 4d2, two first adjusting devices 4a1 and two second adjusting devices 4a2 may be disposed under the first beam body 1a, and one first adjusting device 4a1 and one second adjusting device 4a2 may be located in an H section, another first adjusting device 4a1 and another second adjusting device 4a2 may be located in a Q section, the first adjusting device 4a1 may include jacks 4-1, a sliding trolley 4-2, a slideway 4-3, a limiting fixing device 4-4 and a graduated scale 4-5, wherein the slideway 4-3 is arranged on the transverse distribution beam 3a, the sliding trolley 4-2 can be positioned on the slideway 4-3, the sliding trolley 4-2 can slide transversely on the slideway 4-3, the jack 4-1 is arranged on the sliding trolley 4-2 and can slide transversely along with the sliding trolley 4-2 so as to adjust the transverse bridging position of the first beam body 1a, the graduated scale 4-5 can be arranged on one side of the slideway 4-3, the slideway 4-3 can move according to the graduated scale 4-5, two ends of the slideway 4-3 are respectively provided with the limiting fixing device 4-4, the sliding trolley 4-2 is fixed after the transverse bridge position of the first beam body 1a moves to a target position, so that the sliding trolley is prevented from moving left and right, and the lifting jack 4-1 is controlled to move up and down to adjust the height position of the first beam body 1 a; the remaining adjusting devices 4 may have the same structure as the first adjusting device 4a1, the third adjusting device 4b1 and the fourth adjusting device 4b2 may be provided on the second beam 1b, the fifth adjusting device 4c1 and the sixth adjusting device 4c2 may be provided on the third beam 1c, and the seventh adjusting device 4d1 and the eighth adjusting device 4d2 may be provided on the fourth beam 1 d.
Referring to fig. 1, in some embodiments, the surveying device 8 is preferably an intelligent total station, the surveying device 8 may acquire the mileage position coordinates, the cross-bridge position coordinates and the height coordinates of the two first linear monitoring devices 7a1 and the two second linear monitoring devices 7a2 of the first beam body 1a, respectively, so as to acquire the linear surveying data of the H section and the Q section of the beam body 1, and the surveying device 8 may be disposed on the ground or on a finished bridge floor, so as to accurately acquire the position data of the first linear monitoring device 7a1 and the two second linear monitoring devices 7a 2.
Referring to fig. 1, in some alternative embodiments, the adjusting device 4 may be connected to a control device 5, the control device 5 includes a first control device 5a, a second control device 5b, a third control device 5c and a fourth control device 5d, the first control device 5a is respectively connected to the first adjusting device 4a1 and the second adjusting device 4a2, the second control device 5b is respectively connected to the third adjusting device 4b1 and the fourth adjusting device 4b2, the third control device 5c is respectively connected to the fifth adjusting device 4c1 and the sixth adjusting device 4c2, the fourth control device 5d is respectively connected to the seventh adjusting device 4d1 and the eighth adjusting device 4d2, and the first control device 5a may obtain the piston leakage amount of the jack 4-1 on the first adjusting device 4a1 and the jack leakage amount on the second adjusting device 4a2 in the H section 4-1, and the piston leakage of jack 4-1 on said first adjusting device 4a1 and the piston leakage of jack 4-1 on said second adjusting device 4a2 in section Q, and transmitting the measured piston leakage data of jack 4-1 to the third wireless bridge 9 through the first wireless bridge 6, and the third wireless bridge 9 transmitting the data to the computer 10.
Referring to fig. 1, in some embodiments, the system may further include a fifth control device 8a connected to the measuring device 8, and the fifth control device 8a may be configured to acquire the mileage position coordinates, the cross-bridge position coordinates and the height coordinates of the first linear monitoring device 7a1 and the second linear monitoring device 7a2 of the first beam body 1aH cross section measured by the measuring device 8, acquire the mileage position coordinates, the cross-bridge position coordinates and the height coordinates of the first linear monitoring device 7a1 and the second linear monitoring device 7a2 of the first beam body 1aQ cross section, and transmit the coordinate data to a third wireless bridge 9 through a second wireless bridge 8b, and the third wireless bridge 9 transmits the data to a computer 10.
Referring to fig. 1, in some alternative embodiments, the first control module may be disposed in the computer 10, and configured to obtain the linear measurement data transmitted by the third wireless bridge 9, and perform calculation and judgment; the first control module includes: the first calculation module is used for performing corresponding calculation according to the coordinates observed by the measuring device 8 acquired each time; the first linear monitoring device 7a1 and the second linear monitoring device 7a2 are calculated according to the following formula:
Figure BDA0002440549130000131
Figure BDA0002440549130000132
Figure BDA0002440549130000133
Figure BDA0002440549130000134
Figure BDA0002440549130000135
Figure BDA0002440549130000136
Figure BDA0002440549130000137
Figure BDA0002440549130000138
Figure BDA0002440549130000139
in the formula (I), the compound is shown in the specification,
Figure BDA0002440549130000141
-X-coordinate of said first linear monitoring device (7a1) for H section after nth adjustment;
Figure BDA0002440549130000142
-sectioning said first linear monitoring device (7a1) X-coordinate for a target state H;
Figure BDA0002440549130000143
for the H section after the Nth adjustmentA difference between a first linear monitoring device (7a1) X coordinate and a target state said first linear monitoring device (7a1) X coordinate;
Figure BDA0002440549130000144
-X-coordinate of said second linear monitoring device (7a2) for H section after nth adjustment;
Figure BDA0002440549130000145
-sectioning said second linear monitoring device (7a2) X-coordinate for a target state H;
Figure BDA0002440549130000146
the difference value of the X coordinate of the second linear monitoring device (7a2) and the X coordinate of the second linear monitoring device (7a2) in the target state is obtained for the H section after the Nth adjustment;
Figure BDA0002440549130000147
is composed of
Figure BDA0002440549130000148
And
Figure BDA0002440549130000149
i.e. the adjustment amount still needed in the next step; the X coordinate is consistent with the mileage direction of the first beam body (1a), when the delta X is plus, the coordinate is adjusted to large mileage, and when the delta X is minus, the coordinate is adjusted to small mileage, and the unit is m.
Figure BDA00024405491300001410
-Y-coordinates of said first linear monitoring device (7a1) for the H section after the nth adjustment;
Figure BDA00024405491300001411
-sectioning said first linear monitoring device (7a1) Y coordinate for a target state H;
Figure BDA00024405491300001412
the first linear monitoring device (7a1) is used for adjusting the Y coordinate and the target state of the first linear monitoring device (7a1) for the H section after the Nth time(7a1) Difference of Y coordinate;
Figure BDA00024405491300001413
-Y-coordinates of said second linear monitoring device (7a2) for the H section after the nth adjustment;
Figure BDA00024405491300001414
-sectioning said second linear monitoring device (7a2) Y coordinates for a target state H;
Figure BDA00024405491300001415
the difference value of the Y coordinate of the second linear monitoring device (7a2) and the Y coordinate of the second linear monitoring device (7a2) in the target state is obtained for the H section after the Nth adjustment;
Figure BDA00024405491300001416
is composed of
Figure BDA00024405491300001417
And
Figure BDA00024405491300001418
i.e. the adjustment amount still needed in the next step; the Y coordinate is consistent with the transverse direction of the first beam body (1a) and is expressed as an axis, when the delta Y is plus, the adjustment is carried out towards the left lane side, and when the delta Y is minus, the adjustment is carried out towards the right lane side, and the unit is m.
Figure BDA00024405491300001419
-Z coordinates of said first linear monitoring device (7a1) for the nth adjusted H section;
Figure BDA00024405491300001420
-sectioning said first linear monitoring device (7a1) Z-coordinate for a target state H;
Figure BDA00024405491300001421
the difference value of the Z coordinate of the first linear monitoring device (7a1) and the Z coordinate of the first linear monitoring device (7a1) in a target state is obtained for the H section after the Nth adjustment;
Figure BDA00024405491300001422
-Z-coordinate of said second linear monitoring device (7a2) for H section after nth adjustment;
Figure BDA00024405491300001423
-sectioning said second linear monitoring device (7a2) Z-coordinate for a target state H;
Figure BDA00024405491300001424
the difference value of the Z coordinate of the second linear monitoring device (7a2) and the Z coordinate of the second linear monitoring device (7a2) in the target state is obtained for the H section after the Nth adjustment;
Figure BDA0002440549130000151
is composed of
Figure BDA0002440549130000152
And
Figure BDA0002440549130000153
i.e. the adjustment amount still needed in the next step; the Z coordinate is consistent with the height direction of the first beam body (1a) and is expressed as elevation, when the delta Z is plus, the adjustment is carried out upwards, and when the delta Z is minus, the adjustment is carried out downwards, and the unit is m.
And a first judgment module for judging whether the calculated H section is obtained
Figure BDA0002440549130000154
Whether the current state is smaller than the preset critical value or not is judged, if yes, the first beam body (1a) is stopped to be adjusted, the current state is defined as an H section target X state, and otherwise, the mileage direction position of the H section of the first beam body (1a) is adjusted through the lifting equipment until the H section target X state is reached; and judging whether the calculated H section is obtained
Figure BDA0002440549130000155
Whether the value of (1) is less than the corresponding preset critical value, if so, stopping adjusting the first beam body (1a) and defining the current state as an H-section meshMarking a Y state, otherwise, adjusting the transverse bridge position of the H section of the first beam body (1a) through the adjusting device (4) until reaching a target Y state of the H section; and judging whether the calculated H section is obtained
Figure BDA0002440549130000156
If so, stopping adjusting the first beam body (1a) and defining a target Z state of the H section in the current state, otherwise, adjusting the height of the H section of the first beam body (1a) through the adjusting device (4) until the target Z state of the H section is reached, and when the H section of the first beam body (1a) reaches a target X state, a target Y state and a target Z state, determining the target Z state of the H section, and stopping adjusting the H section of the first beam body (1a)
Figure BDA0002440549130000157
0.020m,
Figure BDA0002440549130000158
0.015m,
Figure BDA0002440549130000159
And was 0.030 m.
The first linear monitoring device (7a1) and the second linear monitoring device (7a2) are calculated according to the following formula:
Figure BDA00024405491300001510
Figure BDA00024405491300001511
Figure BDA00024405491300001512
Figure BDA00024405491300001513
Figure BDA00024405491300001514
Figure BDA0002440549130000161
Figure BDA0002440549130000162
Figure BDA0002440549130000163
Figure BDA0002440549130000164
in the formula (I), the compound is shown in the specification,
Figure BDA0002440549130000165
a first linear monitoring device (7a1) X coordinate of the Q section after the Nth adjustment;
Figure BDA0002440549130000166
a first linear monitoring device (7a1) X coordinate in section for a target state Q;
Figure BDA0002440549130000167
the difference value of the X coordinate of the first linear monitoring device (7a1) of the Q section after the Nth adjustment and the X coordinate of the first linear monitoring device (7a1) of the target state is obtained;
Figure BDA0002440549130000168
a second linear monitoring device (7a2) X coordinate for the Q section after nth adjustment;
Figure BDA0002440549130000169
a second linear monitoring device (7a2) X coordinate sectioned for the target state Q;
Figure BDA00024405491300001610
the difference value of the X coordinate of the second linear monitoring device (7a2) of the Q section after the Nth adjustment and the X coordinate of the second linear monitoring device (7a2) of the target state is obtained;
Figure BDA00024405491300001611
is composed of
Figure BDA00024405491300001612
And
Figure BDA00024405491300001613
the X coordinate is consistent with the mileage direction of the first beam body (1a), the coordinate is adjusted to big mileage when △ X is "+", and is adjusted to small mileage when delta X is "-", and the unit is m.
Figure BDA00024405491300001614
A first linear monitoring device (7a1) Y coordinate of the Q section after the Nth adjustment;
Figure BDA00024405491300001615
a first linear monitoring device (7a1) cross-sectional Y coordinate for a target state Q;
Figure BDA00024405491300001616
the difference value of the Y coordinate of the first linear monitoring device (7a1) of the Q section after the Nth adjustment and the Y coordinate of the first linear monitoring device (7a1) of the target state is obtained;
Figure BDA00024405491300001617
a second linear monitoring device (7a2) Y coordinate for the Q section after the Nth adjustment;
Figure BDA00024405491300001618
a second linear monitoring device (7a2) is sectioned for a target state Q in Y coordinates;
Figure BDA00024405491300001619
the difference value of the Y coordinate of the second linear monitoring device (7a2) of the Q section after the Nth adjustment and the Y coordinate of the target state linear monitoring device (7a 2);
Figure BDA00024405491300001620
is composed of
Figure BDA00024405491300001621
And
Figure BDA00024405491300001622
the average value of (a), i.e. the amount of adjustment still needed in the next step; the Y coordinate is consistent with the transverse direction of the first beam body (1a) and is expressed as an axis, when the delta Y is plus, the adjustment is carried out towards the left lane side, and when the delta Y is minus, the adjustment is carried out towards the right lane side, and the unit is m.
Figure BDA00024405491300001623
A first linear monitoring device (7a1) Z coordinate of the Q section after the Nth adjustment;
Figure BDA00024405491300001624
a first linear monitoring device (7a1) Z coordinate of the section of the target state Q;
Figure BDA0002440549130000171
the difference value of the Z coordinate of the first linear monitoring device (7a1) of the Q section after the Nth adjustment and the Z coordinate of the first linear monitoring device (7a1) of the target state is obtained;
Figure BDA0002440549130000172
a second linear monitoring device (7a2) Z coordinate for the Q section after the Nth adjustment;
Figure BDA0002440549130000173
a second linear monitoring device (7a2) Z coordinate is sectioned for the target state Q;
Figure BDA0002440549130000174
the difference value of the Z coordinate of the second linear monitoring device (7a2) of the Q section after the Nth adjustment and the Z coordinate of the second linear monitoring device (7a2) of the target state is obtained;
Figure BDA0002440549130000175
is composed of
Figure BDA0002440549130000176
And
Figure BDA0002440549130000177
the average value of (a), i.e. the amount of adjustment still needed in the next step; the Z coordinate is consistent with the height direction of the first beam body (1a) and is expressed as elevation, when the delta Z is plus, the adjustment is carried out upwards, and when the delta Z is minus, the adjustment is carried out downwards, and the unit is m.
The first judging module judges and calculates the Q section
Figure BDA0002440549130000178
Whether the values of the first beam body (1a) are all smaller than the corresponding preset critical values or not, if so, stopping adjusting the first beam body (1a), and defining the final target state of the Q section in the current state; if not, continuing to adjust the first beam body (1a), wherein the adjustment method of the Q section of the first beam body (1a) is the same as that of the H section, and the preset critical value of the Q section is preferred
Figure BDA0002440549130000179
0.020m,
Figure BDA00024405491300001710
0.015m,
Figure BDA00024405491300001711
And was 0.030 m.
Referring to fig. 1, in some embodiments, the computer may further include a second control module configured to obtain a piston leakage amount of the jack transmitted by the third network cable, where the second control module includes a second calculating module configured to calculate Δ L according to the piston leakage amount of the jack of the first adjusting device and the piston leakage amount of the jack of the second adjusting device at each acquired H-section or Q-section and obtain Δ L accordingly4aAnd Δ L is calculated4aThe formula of (1) is:
ΔL4a＝L4a1-L4a2
in the formula, L4a1L piston leakage of jack (4-1) of first adjusting device (4a1)4a2Is the piston leakage of the jack (4-1) of the second adjusting device (4a 2).
And a second determination module for determining the calculated Δ L4aIf not, stopping loading the jack (4-1) of the adjusting device (4) and ensuring that the piston leakage of the jack (4-1) of the adjusting device (4) is large and the piston leakage of the jack (4-1) of the adjusting device (4) is small; if yes, continuing to load the first beam body (1a), wherein in the embodiment, the first preset critical value is preferably 0.010 m; the calculation formulas and the judgment methods of the H section and the Q section of the second beam 1b, the third beam 1c, and the fourth beam 1d are the same as those of the first beam 1 a.
Referring to fig. 1, an adjusting method for assembling a steel box girder of a swivel cable-stayed bridge according to an embodiment of the present invention includes the following steps:
step 1: and hoisting the first beam body 1a and placing the first beam body on the temporary support 2.
In some embodiments, before step 1, the N-1 section beam body 1 may be assembled and welded, and the N section beam body 1 is not assembled.
In some embodiments, before step 1, the entire N-segment beam 1 may include four beams 1 arranged in a transverse direction: a first beam 1a, a second beam 1b, a third beam 1c and a fourth beam 1 d.
In some embodiments, before step 1, two first linear monitoring devices 7a1 and two second linear monitoring devices 7a2 may be disposed at four corners of the top surface of the first beam body 1a, wherein one of the first linear monitoring devices 7a1 and one of the second linear monitoring devices 7a2 are arranged along the transverse bridge direction of the first beam body 1a and form an H-section of the first beam body 1a, and the other of the first linear monitoring devices 7a1 and the other of the second linear monitoring devices 7a2 are arranged along the transverse bridge direction of the first beam body 1a and form a Q-section of the first beam body 1 a.
Step 2: the measuring device 8 obtains the mileage position coordinates of the first beam body 1a, and the first control module calculates and judges the mileage position coordinates to control the hoisting equipment to adjust the first beam body 1a until a corresponding target state is reached.
In some embodiments, before step 2, a horizontal position-limiting device is disposed at a position of the N-1 sections of the beam body 1 corresponding to the first beam body 1a of the N sections of the beam body 1.
In some embodiments, in step 2, the measuring device 8 obtains the mileage position coordinates of the first beam 1aH section, and calculates and judges the mileage position coordinates.
In some embodiments, in step 2, the lifting device has four hooks disposed at four corners of the first beam 1a, and the lifting device adjusts the mileage position of the first beam 1a until the first beam 1a is aligned with the horizontal position limiter.
And step 3: and starting the adjusting device 4, so that the adjusting device 4 is contacted with the bottom surface of the first beam body 1a, and the first beam body 1a is separated from the temporary support 2.
In some embodiments, before step 3, the adjusting device 4 is disposed on the bottom surface of the first beam 1a, the adjusting device 4 includes two first adjusting devices 4a1 and two second adjusting devices 4a2 which can be disposed below the first beam 1a, one of the first adjusting devices 4a1 and one of the second adjusting devices 4a2 can be located at the H section, the other of the first adjusting devices 4a1 and the other of the second adjusting devices 4a2 can be located at the Q section, and each of the first adjusting devices 4a1 and the second adjusting devices 4a2 can include a jack 4-1, a sliding cart 4-2, a slideway 4-3, a position-limiting fixing device 4-4 and a graduated scale 4-5.
And 4, step 4: the measuring device 8 respectively obtains a transverse bridge position coordinate and a height coordinate of the first beam body 1a, the first control module respectively calculates and judges the transverse bridge position coordinate and the height coordinate to control the adjusting device 4 to adjust the first beam body 1a until a corresponding target state is reached, and when the mileage position coordinate, the transverse bridge position coordinate and the height coordinate of the first beam body 1a reach the corresponding target state, the final target state of the first beam body 1a is obtained.
In some optional embodiments, in step 4, when the transverse bridge position of the first beam 1a is adjusted, the first control module may calculate transverse bridge position coordinates of both an H section and a Q section of the first beam 1a to obtain an adjustment amount of the H section and an adjustment amount of the Q section, and the adjusting device 4 adjusts both the H section and the Q section of the first beam 1a, that is, adjusts one of the sections to a target state, then finely adjusts the other section, and finally makes both the H section and the Q section reach corresponding target states.
In some embodiments, in step 4, when the transverse bridge position of the first beam 1a is adjusted, a traction device may be manually started to drag the sliding trolley 4-2 to move the first beam 1a through the calculated adjustment amount, or the computer 10 may be connected to the adjustment device 4 below the first beam 1a to move the first beam 1a through automatic control.
In some embodiments, in step 4, when adjusting the height of the first beam 1a, the first control module may first calculate a height coordinate of the H section of the first beam 1a to obtain an adjustment amount of the H section, then adjust the height of the first beam 1aH section by adjusting the jack 4-1 below the first beam 1a to lift up, and then adjust the height of the first beam 1aQ section by the same method.
In some embodiments, prior to step 4, a control device 5 is connected to the jacks 4-1 of the first and second adjusting devices 4a1 and 4a2, respectively, and the control device 5 is connected to a computer 10.
In some embodiments, in step 4, when the height of the first beam 1a is adjusted, the control device 5 obtains the piston leakage amount of the jack 4-1 on the first adjusting device 4a1 and the piston leakage amount of the jack 4-1 on the second adjusting device 4a2 in real time, and Q section the piston leakage of jack 4-1 on the first adjusting device 4a1 and the piston leakage of jack 4-1 on the second adjusting device 4a2, and transmitted to a second control module in the computer 10, which calculates and judges the received data in time, so as to control the loading force of the first adjusting device 4a1 and the second adjusting device 4a2 on the H section or the Q section, and prevent the first beam body 1a from toppling due to the overhigh height of one side.
In some embodiments, after step 4, the first beam body 1a of the N-section beam body 1 and the N-1 section beam body 1 may be temporarily fixed.
In some embodiments, after the step 4, the second beam body 1b is hoisted to one side of the first beam body 1a according to the steps 1 to 4, adjusted to a corresponding target position, and temporarily fixed.
In some embodiments, after the step 4, the third beam 1c is hoisted to the opposite side of the first beam 1a according to the steps 1 to 4, adjusted to a corresponding target position, and temporarily fixed.
In some embodiments, after the step 4, the fourth beam body 1d is hoisted to one side of the third beam body 1c according to the steps 1 to 4, adjusted to a corresponding target position, and temporarily fixed; and finally, welding the N-section beam body 1 and the N-1 section beam body 1 to form a whole, and assembling the section beam body 1.
The principle of the system and the adjusting method for assembling the steel box girder of the swivel cable-stayed bridge provided by the embodiment of the invention is as follows:
because the measuring device 8 can obtain the linear measurement data of the beam body 1 in the mileage position, the transverse bridge direction position and the height in the installation process of the beam body 1, calculate the linear measurement data through the first control module to obtain the adjustment amounts of the beam body 1 in the mileage position, the transverse bridge direction position and the height respectively, and then actively adjust the beam body 1 through the adjusting device 4 and the hoisting equipment, the beam body 1 can automatically calculate the adjustment amount required to be adjusted in the next step through the first control module according to the preset target position in the installation process, adjust the beam body 1 to the target state step by step, and the beam body 1 can be positioned through the adjusting device 4 and the hoisting equipment in time according to the calculated adjustment amount without setting numerous references on the assembling bracket 3 of the beam body 1, the automation degree is high, and the working efficiency is high; and because the three-dimensional coordinates of each beam body 1 are accurately moved through calculation according to the set target state, when the linear shape of each beam body 1 deviates in the installation process, each beam body 1 can reach the set target state through timely and accurate adjustment of the adjustment amount, so that the plurality of beam bodies 1 basically do not need to be adjusted after the assembly is completed and reach the set linear standard, and the beam bodies 1 are ensured to be more accurate in position and better in quality after the final assembly is completed.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It is to be noted that, in the present invention, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The utility model provides a system for be used for turning cable-stay bridge steel box girder and assemble which characterized in that, it includes:
the beam body (1), the beam body (1) is arranged on the temporary support (2);
the adjusting device (4) is positioned below the beam body (1) and is used for adjusting the transverse bridge position and height of the beam body (1);
the hoisting equipment is used for adjusting the mileage position of the beam body (1);
the measuring device (8) is used for acquiring linear measuring data of the beam body (1), and the linear measuring data comprise the mileage position, the transverse bridge direction position and the height of the beam body (1);
the first control module is used for acquiring the linear measurement data, calculating to obtain adjustment quantities of the beam body at the mileage position, the transverse bridge direction position and the height respectively, judging whether the adjustment quantities are smaller than corresponding preset critical values or not, stopping adjusting the beam body (1) if the adjustment quantities are smaller than the corresponding preset critical values, and defining the current state as a final target state; if not, the beam body (1) is continuously adjusted until the adjustment amount is smaller than a preset critical value.
2. The system for assembling the steel box girder of the swivel cable-stayed bridge according to claim 1, wherein:
the top surface of the beam body (1) is provided with two first linear monitoring devices (7a1) and two second linear monitoring devices (7a2) and is positioned at four corners of the beam body (1), one first linear monitoring device (7a1) and one second linear monitoring device (7a2) are arranged along the transverse bridge direction of the beam body (1) and form an H section of the beam body (1), and the other first linear monitoring device (7a1) and the other second linear monitoring device (7a2) are arranged along the transverse bridge direction of the beam body (1) and form a Q section of the beam body (1); the measuring device (8) respectively acquires coordinates of the two first linear monitoring devices (7a1) and the two second linear monitoring devices (7a2) so as to acquire linear measurement data of H sections and Q sections of the beam body (1).
3. The system for assembling the steel box girder of the swivel cable-stayed bridge according to claim 2, wherein:
the first control module includes:
the first calculation module is used for performing corresponding calculation according to the coordinates observed by the measuring device (8) acquired each time;
the first linear monitoring device (7a1) and the second linear monitoring device (7a2) are calculated according to the following formula:
Figure FDA0002440549120000021
Figure FDA0002440549120000022
Figure FDA0002440549120000023
Figure FDA0002440549120000024
Figure FDA0002440549120000025
Figure FDA0002440549120000026
Figure FDA0002440549120000027
Figure FDA0002440549120000028
Figure FDA0002440549120000029
in the formula (I), the compound is shown in the specification,
Figure FDA00024405491200000210
-X-coordinate of said first linear monitoring device (7a1) for H section after nth adjustment;
Figure FDA00024405491200000211
-sectioning said first linear monitoring device (7a1) X-coordinate for a target state H;
Figure FDA00024405491200000212
the difference value of the X coordinate of the first linear monitoring device (7a1) and the X coordinate of the first linear monitoring device (7a1) in the target state is obtained for the H section after the Nth adjustment;
Figure FDA00024405491200000213
-X-coordinate of said second linear monitoring device (7a2) for H section after nth adjustment;
Figure FDA00024405491200000214
is a target state H sectionThe second linear monitoring device (7a2) X coordinate;
Figure FDA00024405491200000215
the difference value of the X coordinate of the second linear monitoring device (7a2) and the X coordinate of the second linear monitoring device (7a2) in the target state is obtained for the H section after the Nth adjustment;
Figure FDA00024405491200000216
is composed of
Figure FDA00024405491200000217
And
Figure FDA00024405491200000218
i.e. the adjustment amount still needed in the next step; the X coordinate is consistent with the mileage direction of the beam body (1), when the delta X is plus, the coordinate is adjusted to big mileage, and when the delta X is minus, the coordinate is adjusted to small mileage, and the unit is m;
Figure FDA0002440549120000031
-Y-coordinates of said first linear monitoring device (7a1) for the H section after the nth adjustment;
Figure FDA0002440549120000032
-sectioning said first linear monitoring device (7a1) Y coordinate for a target state H;
Figure FDA0002440549120000033
the difference value of the Y coordinate of the first linear monitoring device (7a1) and the Y coordinate of the first linear monitoring device (7a1) in the target state is obtained after the Nth adjustment on the H section;
Figure FDA0002440549120000034
-Y-coordinates of said second linear monitoring device (7a2) for the H section after the nth adjustment;
Figure FDA0002440549120000035
-sectioning said second linear monitoring device (7a2) Y coordinates for a target state H;
Figure FDA0002440549120000036
the difference value of the Y coordinate of the second linear monitoring device (7a2) and the Y coordinate of the second linear monitoring device (7a2) in the target state is obtained for the H section after the Nth adjustment;
Figure FDA0002440549120000037
is composed of
Figure FDA0002440549120000038
And
Figure FDA0002440549120000039
i.e. the adjustment amount still needed in the next step; the Y coordinate is consistent with the transverse direction of the beam body (1) and is expressed as an axis, when the delta Y is plus, the adjustment is carried out to the left lane side, and when the delta Y is minus, the adjustment is carried out to the right lane side, and the unit is m;
Figure FDA00024405491200000310
-Z coordinates of said first linear monitoring device (7a1) for the nth adjusted H section;
Figure FDA00024405491200000311
-sectioning said first linear monitoring device (7a1) Z-coordinate for a target state H;
Figure FDA00024405491200000312
the difference value of the Z coordinate of the first linear monitoring device (7a1) and the Z coordinate of the first linear monitoring device (7a1) in a target state is obtained for the H section after the Nth adjustment;
Figure FDA00024405491200000313
-Z-coordinate of said second linear monitoring device (7a2) for H section after nth adjustment;
Figure FDA00024405491200000314
-sectioning said second linear monitoring device (7a2) Z-coordinate for a target state H;
Figure FDA00024405491200000315
the difference value of the Z coordinate of the second linear monitoring device (7a2) and the Z coordinate of the second linear monitoring device (7a2) in the target state is obtained for the H section after the Nth adjustment;
Figure FDA00024405491200000316
is composed of
Figure FDA00024405491200000317
And
Figure FDA00024405491200000318
i.e. the adjustment amount still needed in the next step; the Z coordinate is consistent with the height direction of the beam body (1) and is expressed as elevation, when the delta Z is plus, the adjustment is carried out upwards, and when the delta Z is minus, the adjustment is carried out downwards, and the unit m is;
a first judgment module for judging whether the calculated H section is obtained
Figure FDA00024405491200000319
Whether the values of (a) are all smaller than the corresponding preset critical values or not, if so, stopping adjusting the beam body (1), and defining a final target state which is an H section in the current state; if not, the beam body (1) is continuously adjusted.
4. The system for assembling the steel box girder of the swivel cable-stayed bridge according to claim 3, wherein: if it is
Figure FDA00024405491200000320
If the value of (2) is less than the corresponding preset critical value, stopping adjusting the beam body (1), defining the target X state of the H section in the current state, otherwise, adjusting the mileage direction position of the H section of the beam body (1) through the hoisting equipment until the target X state reaches the target X state of the H sectionMarking an X state; if it is
Figure FDA0002440549120000041
If the value of the H-section is smaller than the corresponding preset critical value, stopping adjusting the beam body (1), and defining the current state as an H-section target Y state, otherwise, adjusting the transverse bridge position of the beam body (1) through the adjusting device (4) until the H-section target Y state is reached; if it is
Figure FDA0002440549120000042
If the value of the H section is smaller than the corresponding preset critical value, stopping adjusting the beam body (1), and defining the current state as an H section target Z state, otherwise, adjusting the height of the H section of the beam body (1) through the adjusting device (4) until the H section target Z state is reached, and when the beam body (1) reaches the H section target X state, the target Y state and the target Z state, determining the final target state of the H section.
5. The system for assembling the steel box girder of the swivel cable-stayed bridge according to claim 3, wherein: the preset critical value
Figure FDA0002440549120000043
0.020m,
Figure FDA0002440549120000044
0.015m,
Figure FDA0002440549120000045
And was 0.030 m.
6. The system for assembling the steel box girder of the swivel cable-stayed bridge according to claim 2, wherein:
the first control module includes:
a first calculation module which performs a corresponding calculation according to the coordinates observed by the measuring device (8) acquired each time:
the first linear monitoring device (7a1) and the second linear monitoring device (7a2) are calculated according to the following formula:
Figure FDA0002440549120000046
Figure FDA0002440549120000047
Figure FDA0002440549120000048
Figure FDA0002440549120000049
Figure FDA0002440549120000051
Figure FDA0002440549120000052
Figure FDA0002440549120000053
Figure FDA0002440549120000054
Figure FDA0002440549120000055
in the formula (I), the compound is shown in the specification,
Figure FDA0002440549120000056
a first linear monitoring device (7a1) X coordinate of the Q section after the Nth adjustment;
Figure FDA0002440549120000057
a first linear monitoring device (7a1) X coordinate in section for a target state Q;
Figure FDA0002440549120000058
the difference value of the X coordinate of the first linear monitoring device (7a1) of the Q section after the Nth adjustment and the X coordinate of the first linear monitoring device (7a1) of the target state is obtained;
Figure FDA0002440549120000059
a second linear monitoring device (7a2) X coordinate for the Q section after nth adjustment;
Figure FDA00024405491200000510
a second linear monitoring device (7a2) X coordinate sectioned for the target state Q;
Figure FDA00024405491200000511
the difference value of the X coordinate of the second linear monitoring device (7a2) of the Q section after the Nth adjustment and the X coordinate of the second linear monitoring device (7a2) of the target state is obtained;
Figure FDA00024405491200000512
is composed of
Figure FDA00024405491200000513
And
Figure FDA00024405491200000514
the average value of (a), i.e. the amount of adjustment still needed in the next step; the X coordinate is consistent with the mileage direction of the beam body (1), when the delta X is plus, the coordinate is adjusted to big mileage, and when the delta X is minus, the coordinate is adjusted to small mileage, and the unit is m;
Figure FDA00024405491200000515
a first linear monitoring device (7a1) Y coordinate of the Q section after the Nth adjustment;
Figure FDA00024405491200000516
is a target state Q-a first linear monitoring device (7a1) in section Y coordinate;
Figure FDA00024405491200000517
the difference value of the Y coordinate of the first linear monitoring device (7a1) of the Q section after the Nth adjustment and the Y coordinate of the first linear monitoring device (7a1) of the target state is obtained;
Figure FDA00024405491200000518
a second linear monitoring device (7a2) Y coordinate for the Q section after the Nth adjustment;
Figure FDA00024405491200000519
a second linear monitoring device (7a2) is sectioned for a target state Q in Y coordinates;
Figure FDA00024405491200000520
the difference value of the Y coordinate of the second linear monitoring device (7a2) of the Q section after the Nth adjustment and the Y coordinate of the target state linear monitoring device (7a 2);
Figure FDA00024405491200000521
is composed of
Figure FDA00024405491200000522
And
Figure FDA00024405491200000523
the average value of (a), i.e. the amount of adjustment still needed in the next step; the Y coordinate is consistent with the transverse direction of the beam body (1) and is expressed as an axis, when the delta Y is plus, the adjustment is carried out to the left lane side, and when the delta Y is minus, the adjustment is carried out to the right lane side, and the unit is m;
Figure FDA0002440549120000061
a first linear monitoring device (7a1) Z coordinate of the Q section after the Nth adjustment;
Figure FDA0002440549120000062
is a target state Q cut-a first linear monitoring device (7a1) Z coordinate;
Figure FDA0002440549120000063
the difference value of the Z coordinate of the first linear monitoring device (7a1) of the Q section after the Nth adjustment and the Z coordinate of the first linear monitoring device (7a1) of the target state is obtained;
Figure FDA0002440549120000064
a second linear monitoring device (7a2) Z coordinate for the Q section after the Nth adjustment;
Figure FDA0002440549120000065
a second linear monitoring device (7a2) Z coordinate is sectioned for the target state Q;
Figure FDA0002440549120000066
the difference value of the Z coordinate of the second linear monitoring device (7a2) of the Q section after the Nth adjustment and the Z coordinate of the second linear monitoring device (7a2) of the target state is obtained;
Figure FDA0002440549120000067
is composed of
Figure FDA0002440549120000068
And
Figure FDA0002440549120000069
the average value of (a), i.e. the amount of adjustment still needed in the next step; the Z coordinate is consistent with the height direction of the beam body (1) and is expressed as elevation, when the delta Z is plus, the adjustment is carried out upwards, and when the delta Z is minus, the adjustment is carried out downwards, and the unit m is;
a first judgment module for judging whether the calculated Q section is obtained
Figure FDA00024405491200000610
Whether the values of the two are all smaller than the corresponding preset critical values or not, if so, stopping adjusting the beam body (1), and defining the final target state of the Q section in the current state; if not, the beam body (1) is continuously adjusted.
7. The system for assembling the steel box girder of the swivel cable-stayed bridge according to claim 6, wherein: the preset critical value
Figure FDA00024405491200000611
0.020m,
Figure FDA00024405491200000612
0.015m,
Figure FDA00024405491200000613
And was 0.030 m.
8. The system for assembling the steel box girder of the swivel cable-stayed bridge according to claim 2, wherein:
said adjustment means (4) comprising two first adjustment means (4a1) and two second adjustment means (4a2), one of said first adjustment means (4a1) and one of said second adjustment means (4a2) being located in the H section, the other of said first adjustment means (4a1) and the other of said second adjustment means (4a2) being located in the Q section, said first adjustment means (4a1) and said second adjustment means (4a2) each comprising a jack (4-1);
the control device (5) is respectively connected with the jacks (4-1) on the first adjusting device (4a1) and the second adjusting device (4a2) and is used for acquiring the piston leakage amount of the jack (4-1) on the first adjusting device (4a1) and the piston leakage amount of the jack (4-1) on the second adjusting device (4a2) in the H section, and the piston leakage amount of the jack (4-1) on the first adjusting device (4a1) and the piston leakage amount of the jack (4-1) on the second adjusting device (4a2) in the Q section and transmitting the piston leakage amounts to a second control module;
the second control module includes:
a second calculation module for calculating the piston leakage of the jack (4-1) of the first adjustment device (4a1) and the piston leakage of the jack (4-1) of the second adjustment device (4a2) according to the H section or the Q section obtained each time, and performing corresponding calculationCalculated as Δ L4aAnd Δ L is calculated4aThe formula of (1) is:
ΔL4a＝L4a1-L4a2
in the formula, L4a1L piston leakage of jack (4-1) of first adjusting device (4a1)4a2Is the piston leakage of the jack (4-1) of the second adjusting device (4a 2);
a second determination module for determining the calculated Δ L4aWhether the value of (a) is less than a first preset critical value or not, if not, stopping loading the jack (4-1) of the adjusting device (4) and ensuring that the piston leakage of the jack (4-1) loading the adjusting device (4) is large; if yes, continuously loading the beam body (1).
9. The system for assembling the steel box girder of the swivel cable-stayed bridge according to claim 8, wherein: the first preset critical value is 0.010 m.
10. An adjusting method for assembling a steel box girder of a swivel cable-stayed bridge, which is used in the device of claim 1, and is characterized by comprising the following steps:
hoisting the beam body (1) and placing the beam body on the temporary support (2);
the measuring device (8) acquires the mileage position coordinates of the beam body (1), and the first control module calculates and judges the mileage position coordinates to control the hoisting equipment to adjust the beam body (1) until a corresponding target state is reached;
starting the adjusting device (4), enabling the adjusting device (4) to be in contact with the bottom surface of the beam body (1), and enabling the beam body (1) and the temporary support (2) to be separated;
the measuring device (8) respectively obtains transverse bridge position coordinates and height coordinates of the beam body (1), the first control module respectively calculates and judges the transverse bridge position coordinates and the height coordinates to control the adjusting device (4) to adjust the beam body (1) until corresponding target states are reached, and when the mileage position coordinates, the transverse bridge position coordinates and the height coordinates of the beam body (1) all reach the corresponding target states, the final target state of the beam body (1) is achieved.
CN202010264072.2A 2020-04-07 2020-04-07 System for assembling steel box girder of swivel cable-stayed bridge and adjusting method Pending CN111501559A (en)

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