CN116448177A - Swivel bridge swivel construction monitoring system and construction method - Google Patents
Swivel bridge swivel construction monitoring system and construction method Download PDFInfo
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- CN116448177A CN116448177A CN202310411174.6A CN202310411174A CN116448177A CN 116448177 A CN116448177 A CN 116448177A CN 202310411174 A CN202310411174 A CN 202310411174A CN 116448177 A CN116448177 A CN 116448177A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 131
- 238000010276 construction Methods 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 claims abstract description 31
- 238000005303 weighing Methods 0.000 claims abstract description 29
- 238000005259 measurement Methods 0.000 claims abstract description 23
- 238000013461 design Methods 0.000 claims abstract description 9
- 238000006073 displacement reaction Methods 0.000 claims description 28
- 239000011521 glass Substances 0.000 claims description 22
- 229910000831 Steel Inorganic materials 0.000 claims description 18
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- 206010034719 Personality change Diseases 0.000 claims description 3
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- 229920005372 Plexiglas® Polymers 0.000 description 2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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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
- E01D21/08—Methods or apparatus specially adapted for erecting or assembling bridges by rotational movement of the bridge or bridge sections
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The system comprises a rotary bridge rotary construction monitoring system, a digital weighing system, a beam body deflection monitoring system, a spatial attitude measuring system, a rotary vertical shaft monitoring system, a beam body axis positioning system and a digital weighing system, wherein the digital weighing system is arranged between an upper bearing platform and a lower bearing platform; the beam body deflection monitoring system is used for monitoring the deflection value of the beam body; the space attitude measurement system is used for measuring the space attitude, the rotation angle and the rotation angular velocity of the beam body in the rotation process of the beam body; the rotating vertical axis monitoring system is used for measuring the three-dimensional coordinates, the horizontal azimuth angle and the rotating axis offset value of the rotating center in the beam body rotating process; and the beam axis positioning system is used for guiding the beam axis to be in place and observing the beam transverse and longitudinal deviation values after the beam axis is in place. The design has stable monitoring and higher monitoring precision.
Description
Technical Field
The invention relates to the field of swivel bridge construction, in particular to a swivel bridge swivel construction monitoring system and a swivel bridge swivel construction monitoring method.
Background
The bridge swivel construction is a bridge construction process developed in the 40 th century, and is constructed at proper positions on two sides of a river, a road and a canyon, the operation above the obstacle is converted into the operation on the shore or near the ground, finally, the bridge is positioned by utilizing a complete set of swivel equipment through a horizontal or vertical swivel according to design requirements, the bridge of the horizontal swivel is generally provided with a continuous box girder, and the support below a girder body is required to be completely dismantled and suspended during the swivel, so that the whole-process monitoring is required to control, and the bridge is prevented from under-swivel or over-swivel, and the girder body is excessively deviated or collapse accidents occur. The current bridge construction monitoring of turning mainly cooperates through total powerstation and standard round prism and measures the real-time gesture of roof beam body and change, but the in-process prism head of turning can follow the bridge rotation and lead to the prism to all change for the horizontal direction and the vertical direction of fixed total powerstation, consequently, need the personnel to stop go the counter-rotation and make it aim at total powerstation and carry out continuous observation, because the time of turning is shorter, need rotatory prism more so lead to the work load great, in case personnel carelessly touch the prism support can also cause monitoring point position inefficacy, and adopt current 360 little prism itself to have great error and have the observation dead angle, can not resume prism vertical state voluntarily when the roof beam body takes place the slope and cause new observation error, from this can be influenced greatly by environmental and people's factor and cause the monitoring precision not enough and the less data of collecting in the lower equivalent time of efficiency.
Disclosure of Invention
The invention aims to overcome the defect and the problem of poor swivel bridge swivel construction monitoring effect in the prior art, and provides a swivel bridge swivel construction monitoring system with good monitoring effect and a construction method.
In order to achieve the above object, the technical solution of the present invention is:
the system comprises a control system, a digital weighing system, a beam deflection monitoring system, a space attitude measuring system, a rotary vertical shaft monitoring system and a beam axis positioning system, wherein the digital weighing system is arranged between an upper bearing platform and a lower bearing platform of a beam body, the beam deflection monitoring system is arranged at the joint of webs and bottom plates of two ends of the beam body, the space attitude measuring system is arranged at the center of a bridge deck of the two ends of the beam body and at the left side and the right side, the rotary vertical shaft monitoring system is arranged on the rotary axis of the beam body, and the beam axis positioning system is arranged on the longitudinal axis of the end part of the beam body;
the digital weighing system is used for carrying out balance weighing on the beam body before turning through the hydraulic jack, measuring the vertical displacement distance of the beam body during weighing, and sending data to the control system;
The beam deflection monitoring system is used for monitoring the deflection value of the beam bottom after the bracket is removed and in the rotating process and sending data to the control system;
the space attitude measurement system is used for measuring the space attitude change condition, the rotation angle and the rotation angular velocity of the beam body in the rotation process and sending data to the control system;
the rotating vertical axis monitoring system is used for measuring the three-dimensional coordinates and the horizontal azimuth angle of the beam body rotating center and sending data to the control system;
the beam axis positioning system is used for assisting in guiding the beam axis to be in place and observing the beam transverse and longitudinal deviation values after the beam axis is in place;
the control system is used for controlling the digital weighing system to work to guide the beam surface counterweight so as to keep the moment balance of the beam body before turning; drawing a downwarping change curve of the beam body according to the downwarping value obtained by the beam body deflection monitoring system after the bracket is dismantled, and turning the beam body after the downwarping value is stable; the rotation angle and the rotation speed of the beam body are controlled through data acquired by the space attitude measurement system and the rotation vertical axis monitoring system, and the beam body is guided to be in place; the beam axis is assisted in position by a beam axis positioning system.
The digital weighing system comprises a plurality of hydraulic jacks and displacement sensors, wherein the hydraulic jacks and the displacement sensors are circumferentially distributed on the upper side of a lower bearing platform of the beam body, the output ends of the hydraulic jacks are connected with the upper bearing platform of the beam body, the output ends of the displacement sensors are connected with the lower side of the upper bearing platform of the beam body, and the hydraulic jacks and the displacement sensors are connected with the control system;
the control system is used for controlling the hydraulic jack to work and acquiring the vertical displacement distance of the beam body through the displacement sensor.
The beam deflection monitoring system comprises a multi-axis sensor, wherein the multi-axis sensor is arranged at the joint of webs and bottom plates of two ends of the beam body, is used for monitoring the deflection value, horizontal change, shaking and rotation inertia of the beam body, and sends data to the control system;
or the beam deflection monitoring system comprises 720-degree deformation monitoring prisms, angle steel brackets are arranged at the joint of the left and right webs of the two ends of the beam body and the bottom plate, the upper sides of the angle steel brackets are connected with the 720-degree deformation monitoring prisms through connecting threads, and three-dimensional coordinate values of the 720-degree deformation monitoring prisms are measured through a total station and sent to a control system.
The space attitude measurement system comprises a plurality of 720-degree deformation monitoring prisms, angle steel brackets are installed at the joint of the left and right webs of the two ends of the beam body and the bottom plate, the upper sides of the angle steel brackets are connected with the 720-degree deformation monitoring prisms through connecting threads, the tops of the left and right sides of the two ends of the beam body are connected with the 720-degree deformation monitoring prisms through embedded bolts, and the upper end faces of the two ends of the beam body are connected with the 720-degree deformation monitoring prisms through the embedded bolts.
The 720-degree deformation monitoring prism comprises a first top plate and a first bottom plate which are arranged at intervals up and down, a threaded hole is formed in the center of the first bottom plate, a leveling device used for adjusting parallelism of the first bottom plate and the first top plate is arranged between the first bottom plate and the first top plate, an installation groove is formed in the lower side of the first top plate, a first motor and a vertical shaft are arranged in the installation groove, the output end of the first motor is connected with a first pinion, the vertical shaft is positioned at the center of the first top plate, a first large gear is sleeved on the outer peripheral surface of the lower end of the vertical shaft, the first large gear is meshed with the first pinion, the upper end of the vertical shaft penetrates through the first top plate and then is connected with a U-shaped frame, a T-shaped horizontal bubble is arranged on the inner bottom wall of the U-shaped frame, a first lateral shaft is transversely arranged in each of the two lateral parts of the U-shaped frame, a first prismatic lens is connected between the two first lateral shafts, a power supply, a second lateral part of the U-shaped frame is embedded with the motor, a second lateral part of the motor is positioned at the center of the first lateral shaft, a second motor is meshed with the second large gear, a second lateral shaft is connected with the second motor is meshed with the second large gear, and the second lateral shaft is connected with the second large gear, and the second lateral shaft is meshed with the second large gear is mutually;
The control system is used for obtaining three-dimensional coordinate values of the 720-degree deformation monitoring prisms through the total station to obtain the rotation angle and rotation angular velocity of the beam body and the posture change condition of the beam body.
The utility model discloses a vertical axis, including first roof, connecting plate, connecting post, pointer, connecting plate, connecting bearing's upside has been seted up, be provided with in the holding tank, connecting bearing's outer lane connect in the inner wall of holding tank, connecting bearing's inner race cover is located the outer peripheral face of vertical axis, still be provided with the spliced pole in the holding tank, the upside of spliced pole is connected with the connecting plate, the connecting plate is circular, connecting plate and spliced pole all overlap and locate the vertical axis, the connecting plate connect in the downside of U type frame, the upside of connecting plate is provided with the pointer, the upside of first roof is provided with circular scale mark, the center of circular scale mark is located on the center axis of vertical axis, the pointer point to in circular scale mark.
The rotary vertical shaft monitoring system comprises an omnibearing self-adaptive prism, the omnibearing self-adaptive prism is connected with the upper end face of a beam body through a tripod, the omnibearing self-adaptive prism comprises a base, a mounting shaft, a control unit, a multi-axis sensor, an adjusting module, a display module, a horizontal rotation module, a vertical rotation module, a laser ranging module, a prism frame and a second prism lens, the multi-axis sensor, the adjusting module, the display module, the horizontal rotation module, the vertical rotation module and the laser ranging module are connected with the control unit, the multi-axis sensor, the adjusting module, the display module and the horizontal rotation module are all arranged on the base, the mounting shaft is connected with the base through the horizontal rotation module in a rotating mode, the laser ranging module is connected with the center of the lower end of the mounting shaft, the prism frame is connected with the upper end of the mounting shaft, the second prism head is connected with the prism frame in a rotating mode, and the vertical rotation module is connected with the second prism head;
The control system is used for acquiring the three-dimensional coordinate value of the omnibearing self-adaptive prism through the total station, measuring the horizontal azimuth angle of the beam body through the multi-axis sensor, and displaying the real-time rotation state of the beam body and the horizontal offset value of the rotation axis.
The adjusting module comprises a motor driver, two fifth motors and two gear transmission mechanisms, wherein the motor driver is connected with the control unit, the two fifth motors are connected with the motor driver, the output ends of the fifth motors are connected with the input ends of the gear transmission mechanisms, the output ends of the gear transmission mechanisms are connected with the lower ends of the supporting rods, the horizontal rotation module comprises a third motor, a third pinion and a third gearwheel, the third motor is connected with the control unit, the third motor is connected with the lower side of the top plate, the third pinion is connected with the output end of the third motor, the third gearwheel is positioned in the through hole and is connected with the third pinion in an engaged mode, the third gearwheel is sleeved on the outer peripheral surface of the lower end of the mounting shaft, the vertical rotation module comprises a fourth motor, a driving gearwheel and a driven gearwheel, the fourth motor is connected with the control unit, the fourth motor is connected with the outer side of the driving gearwheel, the output end of the fourth motor penetrates through the driving gearwheel and passes through the driving gearwheel and is connected with the driven gearwheel, the driving gearwheel is connected with the inner side of the driving gearwheel and the driving gearwheel.
The beam axis positioning system comprises a plumb gauge and an organic glass plate, wherein the organic glass plate is connected to one end of the beam body, a cross coordinate scale is arranged at the center of the organic glass plate, the longitudinal axis of the cross coordinate scale coincides with the longitudinal axis of the beam body, a tripod is connected to the lower side of the plumb gauge, the tripod is arranged on the ground, the plumb gauge is arranged relative to the design longitudinal axis of the beam body, and a compass and horizontal bubbles are arranged on the upper side of the organic glass plate;
the beam axis positioning system is used for assisting the beam axis to be positioned and observing the transverse and longitudinal deviation values after being positioned through the plumb gauge and the cross coordinate scale.
The construction method of the swivel bridge swivel construction monitoring system comprises the following steps:
s1, lifting the longitudinal and transverse directions of a beam body in front of a swivel through a digital weighing system, simultaneously acquiring a pressure value of a hydraulic oil pressure sensor and a displacement value of a displacement sensor, calculating a spherical hinge friction resistance moment of an upper bearing platform, an unbalanced moment of the beam body, a static friction resistance coefficient of the spherical hinge and an eccentric moment of a rotating body, selecting a counterweight position to perform counterweight calculation by utilizing a lever principle, and applying a counterweight according to a calculation result to ensure that the structural gravity center and the rotation axis center of the beam body coincide or the horizontal distance is kept within a design value, wherein the balance weighing of the beam body is finished;
S2, scanning the whole outline or the end section of the beam body before turning by a three-dimensional laser scanner or a laser section instrument and a total station; monitoring a deflection line of the beam body through a beam body deflection monitoring system, and turning the beam body after the numerical value is stable;
s3, in the beam body turning process, monitoring the horizontal change, shaking and rotation inertia of the beam body in real time through a beam body deflection monitoring system; the space attitude measurement system calculates the rotation angle and rotation angular velocity of the beam body by measuring the three-dimensional coordinates of the beam body in the turning process; the three-dimensional coordinates and the horizontal azimuth angle of the rotation center of the beam body are continuously monitored in real time in the rotating process by a rotation vertical shaft monitoring system, and the horizontal offset value and the real-time rotation state of the rotation axis of the beam body are displayed;
s4, when the beam body rotator is about to be positioned, assisting the beam body longitudinal axis to be positioned and observing the transverse and longitudinal deviation values after being positioned through a beam body axis positioning system;
s5, after the turning is finished, scanning the whole outline or the end section of the beam body by a three-dimensional laser scanner or a laser section instrument matched with a total station, comparing the front data and the rear data to obtain a space offset value in the beam body turning process, and then carrying out fine adjustment and resetting on the beam body by a hydraulic jack;
S6, performing side span cast-in-place section construction after turning is finished, removing temporary constraint of the support, unloading the bottom die, enabling the support to bear force, performing system conversion, and continuously performing creep monitoring on the beam body through the space attitude measurement system after the system conversion of the beam body and before pavement construction, so as to provide reference for next pavement construction.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the swivel bridge swivel construction monitoring system and the construction method, the girder body is weighed on the front swivel bridge through the digital weighing system and then is balanced, so that the bridge deflection caused by unbalanced moment during swivel can be prevented; the deflection value of the beam body is measured through the beam body deflection monitoring system, so that the influence of unstable deformation of the beam body after the support at the bottom of the beam body is removed on the subsequent monitoring effect is avoided; measuring the three-dimensional coordinates of the beam body through a space attitude measurement system, and obtaining the attitude change condition of the heavy beam body in the turning process; the vertical distance from the beam top to the top of the rotary spherical hinge is far, so that the horizontal and horizontal azimuth angles and other data of the rotation center of the beam body are continuously monitored in real time through the rotary vertical shaft monitoring system, measures are taken in time in the rotating process to prevent the deviation of the beam body caused by overlarge inclination of the rotary shaft, in order to prevent the underrotation or overrotation of the beam body, the hydraulic braking system is convenient to start in time to overcome the rotation inertia of the beam body, the beam body is enabled to assist the longitudinal axis of the beam body to be positioned through the beam body axis positioning system when the beam body is about to be positioned, and meanwhile, the transverse and longitudinal deviation values of the beam body in position are read. Therefore, the invention has stable monitoring and comprehensive monitoring range.
2. According to the swivel bridge swivel construction monitoring system and the construction method, the beam body is balanced and weighed by the hydraulic jack and the displacement sensor, and the balancing weight is applied to the bridge after the beam body is vertically and horizontally weighed, so that the weight center of the bridge is overlapped with the rotating vertical shaft, and the deflection of the beam body when the swivel is unbalanced due to moment is overcome; through setting up a plurality of 720 degrees deformation monitoring prisms, can control 720 degrees deformation monitoring prisms horizontal direction 360 or vertical direction 360 and carry out the free rotation when the roof beam body rotates, save personnel's rotation prism's operation, the prism of being convenient for openly aim at total powerstation at any time improves the operating efficiency, overcomes the condition that 360 prism measurement accuracy of current use is lower and there is the vertical direction and observe the dead angle. The rotation angle and the rotation angular velocity can be calculated by measuring the three-dimensional coordinate of the prism at the center of the line at the end part of the beam body and using the rotation track as a curve element, and the change condition of the beam body posture in the rotation process can be measured by the 720-degree deformation monitoring prism. Therefore, the invention has high reliability and stable monitoring process.
3. According to the swivel bridge swivel construction monitoring system and the construction method, the first motor is used for realizing horizontal rotation of the U-shaped frame and the prism head, the second motor is used for driving the first transverse shaft to rotate, and then driving the first prism to vertically rotate, so that the rotation alignment total station in two directions of the first prism is realized, the speed reduction is formed by adopting the meshing mode of the pinion and the large gear, and the rotation fine adjustment of the prism can be realized; through setting up circular shape connecting plate, set up the pointer on the connecting plate, set up circular scale mark in the upside of first roof simultaneously, through reading the scale value that the pointer pointed to, can read the rotation angle of current U type frame to the accurate horizontal rotation fine setting that carries out to U type frame makes first prism head aim at total powerstation, and first prism and total powerstation cooperation measure the three-dimensional coordinate in the rotatory in-process of roof beam body, measurement accuracy is higher, and the error is less. Therefore, the invention has stable structure and higher measurement precision.
4. According to the swivel bridge swivel construction monitoring system and the construction method, the movement state of the rotation center of the beam body is monitored by arranging the omnibearing self-adaptive prism and carrying out three-dimensional coordinate measurement of the prism in cooperation with an automatic total station, and meanwhile, the data such as triaxial acceleration, triaxial angular velocity, triaxial angle, triaxial magnetic field and quaternion are transmitted by utilizing the self-contained multiaxial sensor, so that the problems that the existing 360-degree prism is formed by horizontally arranging and combining a plurality of small prism heads, the cost is high, observation dead angles and correction exist, the prism cannot automatically reset once following the inclination of the bridge, and the vertical angle of the bridge rotating prism is changed and cannot be adjusted due to the rotation of the bridge rotating prism can be effectively avoided; the vertical height between the center of the prism and a ground monitoring point can be measured through the laser ranging module, the multi-axis sensor sends horizontal inclination angle and azimuth angle data to the control system, when the prism is inclined, the control system sends pulse signals to enable the adjusting module to level and reset the base, the horizontal rotating module controls the mounting shaft and the second prism head to align with the total station in the horizontal direction, and the vertical rotating module controls the second prism head to align with the total station in the vertical direction; when the beam body rotates, the electronic compass function of the multi-axis sensor is utilized to automatically measure the horizontal azimuth angle, the angle of rotation of the beam body is obtained by subtracting the initial azimuth angle before the rotation, and the prism can be automatically synchronized and reversely rotated by a control system to be corresponding to the angle, so that the prism can be always aligned to the total station in front, the prism can always keep an initial working state, the subsequent measurement work can be normally operated, and compared with the prior art, the full-automatic operation mode is adopted to replace the traditional manual operation, and the workload of personnel can be reduced; the adjusting module, the horizontal rotating module and the vertical rotating module are all driven by motors, and the fifth motor is automatically controlled to rotate by a multi-shaft sensor, a control unit and a motor driver, so that the second top plate of the base is driven to lift simultaneously, and the second top plate of the base is accurately flat and self-locked; the third motor, the fourth motor and the fifth motor are all output in a gear transmission mode, so that the device is convenient to rotate and fine-tune, and the adjusting precision is high. Therefore, the invention has stable rotation process and higher adjustment precision and can realize full-automatic control.
5. According to the swivel bridge swivel construction monitoring system and the construction method, a total station is used for paying out the point on the longitudinal axis of the beam end after the corresponding beam body is positioned on the ground, then a plumb gauge is erected on the ground point, an organic glass plate is horizontally arranged at the same position corresponding to the beam end before a swivel through a steel bracket, a cross coordinate axis scale is arranged at the center of the organic glass plate, 3 arc-shaped mounting holes on the organic glass plate are connected with the steel bracket through screws and nuts, the 3 arc-shaped mounting holes are concentric with the center of the cross coordinate axis, so that the horizontal rotation fine adjustment of the organic glass plate can enable the longitudinal axis of the coordinate to coincide with the longitudinal axis of the beam body, the coordinate axis is arranged at equal intervals to facilitate the reading of coordinate axis data, the center of the cross scale is coincident with the theoretical point erected by the ground plumb gauge after the swivel is positioned, and a cursor vertically projected upwards can be shown on the organic glass plate when the beam body is positioned quickly, the guide beam body continues to rotate to enable the cursor to coincide with the cross scale, at the moment, the beam body can finish the position, the calibration can not be completely aligned due to various reasons, and therefore, a user can directly read the concentric error on the cross coordinate axis or the cross coordinate axis on the cross coordinate axis, the cross coordinate axis can not be accurately calculated, a computer can be prevented from being in a complex process, and a computer is required to be used for accurately calculating a fault or an error. Therefore, the invention has stable monitoring process, simple and efficient means and higher monitoring precision.
Drawings
Fig. 1 is a schematic structural diagram of a monitoring system for swivel construction of a swivel bridge in the present invention.
Fig. 2 is a schematic view of the structure of the girder body in the present invention.
Fig. 3 is an enlarged schematic view at a in fig. 2.
Fig. 4 is an enlarged schematic view at B in fig. 2.
Fig. 5 is an enlarged schematic view at C in fig. 2.
Fig. 6 is a schematic structural view of a 720-degree deformation monitoring prism according to the present invention.
Fig. 7 is a schematic structural view of a U-shaped frame and a first prism lens according to the present invention.
Fig. 8 is a schematic cross-sectional view of a U-shaped frame and a first prism lens in the present invention.
Fig. 9 is a schematic cross-sectional view of a first top plate of the present invention.
Fig. 10 is a schematic view of the structure of the first top plate in the present invention.
Fig. 11 is a schematic structural view of the first base plate in the present invention.
Fig. 12 is a schematic structural view of the omnidirectional adaptive prism of the present invention.
Fig. 13 is a schematic view of the structure of the base and the mounting shaft in the present invention.
Fig. 14 is a schematic structural view of the support rod, the fifth motor and the gear transmission mechanism in the present invention.
Fig. 15 is a schematic top view of a second top plate of the present invention.
Fig. 16 is a schematic bottom view of a second top plate of the present invention.
Fig. 17 is a schematic diagram of the structure of the prism holder, the second prism lens, and the vertical rotation module in the present invention.
Fig. 18 is a schematic structural view of the vertical rotation module.
FIG. 19 is a schematic view showing the structure of a plexiglass sheet in example 5 of this invention.
FIG. 20 is a schematic view showing the structure of a plexiglass sheet in example 8 of this invention.
In the figure: 720 degree deformation monitoring prism 1, first bottom plate 11, first top plate 12, leveling device 13, first motor 14, vertical shaft 15, first pinion 16, first large gear 17, U-shaped frame 18, T-shaped horizontal bubble 19, first horizontal shaft 110, first prism 111, power supply 112, second motor 113, second pinion 114, second large gear 115, screw hole 116, mounting groove 117, accommodation groove 118, connection bearing 119, connection post 120, connection plate 121, pointer 122, circular scale mark 123, baffle 124, mounting cover 125, circuit board 126, solar panel bracket 127, solar panel 128, first laser head 129, switch 130, joint bearing 131, connection screw 132, knurled nut 133, all-round adaptive prism 2, mounting shaft 21, base 22, control unit 23, multi-axis sensor 24, adjustment module 25, display module 26, horizontal rotation module 27 vertical rotation module 28, laser ranging module 29, third motor 210, third pinion 211, third bull gear 212, fourth motor 213, drive gear 214, driven gear 215, motor driver 216, fifth motor 217, gear drive 218, prism mount 219, second prism 220, second laser head 221, second lateral shaft 222, buzzer 223, second bottom plate 224, second top plate 225, through hole 226, connecting hole 227, rod end joint bearing 228, support bar 229, adjustment nut 230, circular horizontal bubble 231, display 232, mechanical compass 233, angle bracket 3, tripod 4, plumber 5, organic glass panel 6, cross coordinate scale 61, compass 7, horizontal bubble 8, beam 9, control system 10, digital weighing system 20, beam deflection monitoring system 30, spatial attitude measurement system 40, rotational vertical axis monitoring system 50, beam axis positioning system 60.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings and detailed description.
Example 1:
referring to fig. 1 to 20, a construction monitoring system for a swivel bridge swivel comprises a control system 10, a digital weighing system 20, a beam deflection monitoring system 30, a spatial attitude measuring system 40, a rotary vertical shaft monitoring system 50 and a beam axis positioning system 60, wherein the digital weighing system 20 is arranged between an upper bearing platform and a lower bearing platform of a beam 9, the beam deflection monitoring system 30 is arranged at the joint of webs and a bottom plate of two ends of the beam 9, the spatial attitude measuring system 40 is arranged at the center of a bridge deck of the two ends of the beam 9 and at the left side and the right side, the rotary vertical shaft monitoring system 50 is arranged on the rotary axis of the beam 9, and the beam axis positioning system 60 is arranged on the longitudinal axis of the end part of the beam 9.
The digital weighing system 20 comprises a plurality of hydraulic jacks and displacement sensors, the hydraulic jacks and the displacement sensors are circumferentially distributed on the upper side of the lower bearing platform of the beam body 9, the output ends of the hydraulic jacks are connected with the upper bearing platform of the beam body 9, the output ends of the displacement sensors are connected with the lower side of the upper bearing platform of the beam body 9, and the hydraulic jacks and the displacement sensors are connected with the control system 10;
The beam deflection monitoring system 30 comprises a multi-axis sensor 24, wherein the multi-axis sensor 24 is arranged at the joint of webs and bottom plates of two ends of the beam 9.
The construction method of the swivel bridge swivel construction monitoring system comprises the following steps:
s1, lifting the beam body 9 longitudinally and transversely in front of a swivel through a digital weighing system 20, simultaneously acquiring a pressure value of a hydraulic oil pressure sensor and a displacement value of a displacement sensor, calculating a spherical hinge friction resistance moment of an upper bearing platform, an unbalanced moment of the beam body 9, a static friction resistance coefficient of the spherical hinge and an eccentric moment of a rotating body, selecting a counterweight position to perform counterweight calculation by utilizing a lever principle, and applying a counterweight according to a calculation result to ensure that the structure gravity center and the rotation axis center of the beam body 9 coincide or the horizontal distance is kept within a design value, wherein the balance weighing of the beam body 9 is finished;
s2, carrying out integral or end section scanning on the outer contour of the beam body 9 before turning by a three-dimensional laser scanner or a laser section instrument and a total station; monitoring the deflection line of the beam body 9 through a beam body deflection monitoring system 30, and turning the beam body 9 after the numerical value is stable;
s3, in the turning process of the beam body 9, monitoring the horizontal change, the shaking and the rotation inertia of the beam body 9 in real time through a beam body deflection monitoring system 30; the space attitude measurement system 40 calculates the rotation angle and rotation angular velocity of the beam 9 by measuring the three-dimensional coordinates of the beam 9 during the turning process; the three-dimensional coordinates and the horizontal azimuth angle of the rotation center of the beam body 9 are continuously monitored in real time in the rotating process by a rotation vertical shaft monitoring system 50, and the horizontal offset value and the real-time rotation state of the rotation axis of the beam body 9 are displayed;
S4, when the beam body 9 is about to be positioned at a rotating position, the beam body axis positioning system 60 is used for assisting the positioning of the longitudinal axis of the beam body 9 and observing the transverse and longitudinal deviation values after the positioning;
s5, after the turning is finished, carrying out integral or end section scanning on the outer contour of the beam body 9 by a three-dimensional laser scanner or a laser section instrument and a total station, comparing the front and rear data to obtain a space offset value in the turning process of the beam body 9, and then carrying out fine adjustment and resetting on the beam body 9 by a hydraulic jack;
s6, performing side span cast-in-place section construction after turning is finished, removing temporary constraint of the support, unloading the bottom die, enabling the support to bear force, performing system conversion, and continuously performing creep monitoring on the beam 9 through the space attitude measurement system 40 after the system conversion of the beam 9 and before pavement construction, so as to provide reference for next pavement construction.
Example 2:
the basic content is the same as in example 1, except that:
referring to fig. 6 to 11, the beam deflection monitoring system 30 includes 720 degrees of deformation monitoring prisms 1, the left and right webs and the bottom plate junction of two ends of the beam 9 are provided with angle steel brackets 3, the upper sides of the angle steel brackets 3 are connected with the 720 degrees of deformation monitoring prisms 1 through connecting threads, the space attitude measuring system 40 includes a plurality of 720 degrees of deformation monitoring prisms 1, the left and right sides of the lower portion of the beam 9 are provided with angle steel brackets 3, the upper sides of the angle steel brackets 3 are connected with the 720 degrees of deformation monitoring prisms 1 through connecting threads, the tops of the left and right sides of the two ends of the beam 9 are connected with the 720 degrees of deformation monitoring prisms 1 through pre-buried bolts, and the upper end surfaces of the two ends of the beam 9 are connected with the 720 degrees of deformation monitoring prisms 1 through pre-buried bolts.
Example 3:
the basic content is the same as in example 2, except that:
referring to fig. 6 to 11, the 720-degree deformation monitoring prism 1 includes a first top plate 12 and a first bottom plate 11 which are arranged at intervals up and down, a threaded hole 116 is formed in the center of the first bottom plate 11, a leveling device 13 for adjusting parallelism of the first bottom plate 11 and the first top plate 12 is arranged between the first bottom plate 11 and the first top plate 12, a mounting groove 117 is formed in the lower side of the first top plate 12, a first motor 14 and a vertical shaft 15 are arranged in the mounting groove 117, the output end of the first motor 14 is connected with a first pinion 16, the vertical shaft 15 is positioned at the center of the first top plate 12, a first large gear 17 is sleeved on the outer peripheral surface of the lower end of the vertical shaft 15, the first large gear 17 is connected with the first pinion 16 in a meshed mode, the upper end of the vertical shaft 15 penetrates through the first top plate 12 and is connected with a U-shaped frame 18, a T-shaped horizontal bubble 19 is formed in the inner lateral part of the U-shaped frame 18, a first motor 110 is transversely arranged on the inner lateral part of the two lateral part of the U-shaped frame 18, a first motor 110 is connected with a second motor 110, a second motor 115 is connected with the second motor 110 and a second motor 113 is arranged on the lateral part of the second lateral part of the U-shaped frame 18, a second motor 113 is connected with the second motor 110, and a first motor 110 is connected with a second power supply 113, a power supply 110 is connected with a second power supply 110, a power supply 110 and a power supply 110 is connected with a power supply 110; the utility model discloses a novel vertical shaft structure, including first roof 12, connecting plate 121, pointer 122, circular scale mark 123, connecting plate 121 and connecting post 120 are all overlapped in the upside of first roof 12 has seted up holding groove 118, be provided with connecting bearing 119 in the holding groove 118, connecting bearing 119's outer lane connect in holding groove 118's inner wall, connecting bearing 119's inner race cover is located the outer peripheral face of vertical shaft 15, still be provided with spliced pole 120 in the holding groove 118, connecting plate 121 is circular, connecting plate 121 and spliced pole 120 are all overlapped and are located vertical shaft 15, connecting plate 121 connect in the downside of U type frame 18, connecting plate 121's upside is provided with pointer 122, first roof 12's upside is provided with circular scale mark 123, the center of circular scale mark 123 is located on the center axis of vertical shaft 15, pointer 122 point to in circular scale mark 123.
Example 4:
the basic content is the same as in example 1, except that:
referring to fig. 12 to 18, the rotary vertical axis monitoring system 50 includes an omnidirectional adaptive prism 2, the omnidirectional adaptive prism 2 is connected with an upper end surface of the beam body 9 through a tripod 4, the omnidirectional adaptive prism 2 includes a base 22, a mounting shaft 21, a control unit 23, a multi-axis sensor 24, an adjusting module 25, a display module 26, a horizontal rotation module 27, a vertical rotation module 28, a laser ranging module 29, a prism frame 219, and a second prism lens 220, the multi-axis sensor 24, the adjusting module 25, the display module 26, the horizontal rotation module 27, the vertical rotation module 28, the laser ranging module 29 are connected with the control unit 23, the multi-axis sensor 24, the adjusting module 25, the display module 26, and the horizontal rotation module 27 are all mounted on the base 22, the mounting shaft 21 is rotatably connected with the base 22 through the horizontal rotation module 27, the laser ranging module 29 is connected with a center of a lower end of the mounting shaft 21, the prism frame 219 is connected with an upper end of the mounting shaft 21, the second prism lens 220 is rotatably connected with the prism frame 28, and the second prism lens 219 is rotatably connected with the multi-axis sensor 10; the adjusting module 25 includes a motor driver 216, two fifth motors 217 and two gear transmission mechanisms 218, the motor driver 216 is connected with the control unit 23, the two fifth motors 217 are connected with the motor driver 216, the output end of the fifth motors 217 is connected with the input end of the gear transmission mechanisms 218, and the output end of the gear transmission mechanisms 218 is connected with the lower end of the support rods 229. The horizontal rotation module 27 includes a third motor 210, a third pinion 211, and a third large gear 212, the third motor 210 is connected with the control unit 23, the third motor 210 is connected to the lower side of the top plate 12, the third pinion 211 is connected to the output end of the third motor 210, the third large gear 212 is located in the through hole 226 and is engaged with and connected to the third pinion 211, the third large gear 212 is sleeved on the outer peripheral surface of the lower end of the mounting shaft 21, the vertical rotation module 28 includes a fourth motor 213, a driving gear 214, and a driven gear 215, the fourth motor 213 is connected with the control unit 23, the fourth motor 213 is connected to the outer side of the lens holder 219, the output end of the fourth motor 213 passes through the lens holder 219 and is located at the inner side of the lens holder 219, the driving gear 214 is connected to the output end of the fourth motor 213, the driven gear 215 is engaged with and connected to the driving gear 214, the second transverse shaft 220 is rotatably connected to the second lens holder 222 via the second lens holder 215, and the driven gear 215 is sleeved on the second lens holder 222.
Example 5:
the basic content is the same as in example 1, except that:
referring to fig. 19, the beam axis positioning system 60 includes a plumb bob 5 and an organic glass plate 6, one end of the beam body 9 is provided with a steel bracket, 3 arc-shaped mounting holes on the organic glass plate are connected with the steel bracket through a screw and a nut, a cross coordinate scale 61,3 arc-shaped mounting hole is arranged at the center of the organic glass plate 6 and concentric with the scale axis center of the cross coordinate scale 61, an auxiliary line of the cross coordinate scale 61 is circular, the longitudinal axis of the cross coordinate scale 61 coincides with the longitudinal axis of the bridge 9, the lower side of the plumb bob 5 is connected with a tripod 4, the tripod 4 is arranged on the ground, the plumb bob 5 is arranged relative to the beam body design longitudinal axis, and a compass 7 and a horizontal bubble 8 are arranged at the upper side of the organic glass plate 6.
Example 6:
the basic content is the same as in example 1, except that:
the digital weighing system 20 further comprises a multi-axis sensor, the plane position of the multi-axis sensor is located on the bisector central line of the upper bearing platform in the transverse or forward direction through the spherical hinge, the inclination angle of the upper bearing platform is measured when the beam body 9 is weighed by the hydraulic jack, and the vertical displacement distance is calculated by utilizing a trigonometric function through the horizontal distance from the multi-axis sensor to the rotation center.
Example 7:
the basic content is the same as in example 1, except that:
the space attitude measurement system 40 comprises a satellite positioning system, wherein the satellite positioning system is erected on the center of a line at the end of the beam body 9, and information such as a rotation angle, a rotation angular velocity and the like is fed back through differential positioning measurement coordinates.
Example 8:
the basic content is the same as in example 1, except that:
referring to fig. 20, the beam axis positioning system 60 includes a plumb bob 5 and an organic glass plate 6, one end of the beam body 9 is provided with a steel bracket, 3 arc-shaped mounting holes on the organic glass plate are connected with the steel bracket through a screw and a nut, a cross coordinate scale 61,3 arc-shaped mounting hole is arranged at the center of the organic glass plate 6 and is concentric with the scale axis center of the cross coordinate scale 61, an auxiliary line of the cross coordinate scale 61 is square, the longitudinal axis of the cross coordinate scale 61 coincides with the longitudinal axis of the bridge 9, the lower side of the plumb bob 5 is connected with a tripod 4, the tripod 4 is arranged on the ground, the plumb bob 5 is arranged relative to the design longitudinal axis of the beam body, and a compass 7 and a horizontal bubble 8 are arranged at the upper side of the organic glass plate 6.
In the invention, a baffle 124 is arranged at the outer side of a power supply 112 of the 720-degree deformation monitoring prism 1, the baffle 124 is connected to one side part of the U-shaped frame 18, a mounting cover 125 is arranged at the outer side of the second motor 113, and the mounting cover 125 is connected to the other side part of the U-shaped frame 18. Still be provided with circuit board 126 in the mounting groove 117, the upside of installing cover 125 is provided with solar panel support 127, and the upside of solar panel support 127 is provided with solar panel 128, and the upside of first roof 12 is provided with switch 130, and switch 130, power 112, solar panel 128 are all connected with circuit board 126. The upper end of first prismatic lens 111 is provided with first laser head 129, and levelling device 13 includes joint bearing 131 and two connecting screw 132, and the outer peripheral face cover of two connecting screw 132 is equipped with knurled nut 133, and the lower extreme rotation of two connecting screw 132 is connected in first bottom plate 11, and the upper end threaded connection of two connecting screw 132 is in first roof 12, and joint bearing 131's pole portion is connected in first bottom plate 11, and joint bearing 131's inner circle is rotated through the round pin axle and is connected in first roof 12.
The base 22 of the omnibearing self-adaptive prism 2 comprises a second top plate 225 and a second bottom plate 224 which are arranged at intervals up and down, the second top plate 225 and the second bottom plate 224 are of regular triangle structures, a through hole 226 is formed in the center of the second top plate 225, a horizontal rotation module 27 is arranged in the through hole 226, a connecting hole 227 is formed in the center of the second bottom plate 224, a rod end joint bearing 228 and two support rods 229 are arranged on the upper side of the second bottom plate 224, the lower end of the rod end joint bearing 228 is connected to one vertex of the second bottom plate 224, the upper end of the rod end joint bearing 228 is hinged to one vertex of the second top plate 225, the two support rods 229 are respectively positioned at the other two vertices of the second bottom plate 224, an adjusting nut 230 is connected to the upper ends of the two support rods 229 in a threaded mode, the two adjusting nuts 230 are arranged at the other two vertices of the second top plate 225, the adjusting module 25 is connected with the support rods 229 and used for controlling the rotation of the support rods 229, the display module 26 comprises a round horizontal bubble 231, a T-shaped horizontal bubble 19, a display 232, a mechanical compass 233, a round compass 231, the upper end of the round horizontal bubble 231 is connected to one vertex of the second bottom plate 224, the two support rods are connected to the mechanical compass 219, the upper side of the round compass 219 are connected to the mechanical compass 219, and the upper side of the mechanical compass 219 is connected to the second compass support bridge 33.
The displacement sensor can adopt a digital display dial indicator, four angles of a lower bearing platform are equidistant along the diagonal line of an upper bearing platform, four hydraulic jacks are placed near the edges of the lower bearing platform as far as possible, so that the maximum moment arm can be obtained, a pressure sensor is arranged in a hydraulic system, the pressure sensor detects the pressure of pressure oil in the hydraulic system, oil pressure is sent to a computer through an RS485 interface through electric signal output, 8 high-precision digital display dial indicators are installed in the range from the inner side of the hydraulic jack to the outer side of an upper raceway, the distances from the inner side of the hydraulic jack to the center of a spherical hinge are equal, 4 digital display dial indicators are overlapped with the diagonal line of the hydraulic jack or the lower bearing platform, the rest 4 digital display dial indicators are upwards propped against the upper bearing platform on the bisector between the two digital display dial indicators, the digital display dial indicators are connected with the computer through an RS232 communication interface, the digital display dial indicators are used for conveniently extracting data, the bridge support is balanced and weighed after the bridge support is removed and sundries are removed before the bridge is removed, the displacement distance is measured through the digital display dial indicator micro-meter, the critical value is calculated and the center of gravity position of the bridge is measured through software, the P-delta relation curve judgment force value is increased, the bridge structure is increased, the bridge center of gravity is arranged, the bridge structure is kept in the horizontal direction of the bridge is inclined in the process, and the inclination is not beneficial to the bridge is designed in the horizontal direction.
After the beam body 9 is disassembled from the front beam bottom support, the lower deflection line of the beam body 9 is monitored according to software by the numerical value monitored by the multi-axis sensor, and the multi-axis sensor can monitor the horizontal change, shake, rotational inertia and the like of the beam body 9 in real time in the turning process, and alarm is implemented on sudden shake, inclination and the like of the beam body 9.
In the two scans of the whole outline or the end section of the beam body 9 before and after the turning, preprocessing such as denoising, simplifying compression, registering fusion and the like and post-processing operations such as data segmentation, section line extraction, section data sleeve and the like are carried out on laser point cloud data, deflection values generated in the turning process of the beam body 9 are quickly obtained by comparing two data through result output, and a CAD section diagram is generated to visually display or a statistical table is generated to provide basis for adjusting the posture of the beam body of the hydraulic jack; the elevation values in the three-dimensional coordinates measured before and after the swivel can also be compared by using the space attitude measurement system 40, and then the beam body 9 is finely adjusted and reset by using the hydraulic jack.
Claims (10)
1. A swivel bridge swivel construction monitoring system is characterized in that: the system comprises a control system (10), a digital weighing system (20), a beam deflection monitoring system (30), a space attitude measuring system (40), a rotary vertical shaft monitoring system (50) and a beam axis positioning system (60), wherein the digital weighing system (20) is arranged between an upper bearing platform and a lower bearing platform of a beam body (9), the beam deflection monitoring system (30) is arranged at the joint of webs and bottom plates of two ends of the beam body (9), the space attitude measuring system (40) is arranged at the center of a bridge deck of the two ends of the beam body (9) and at the left side and the right side, the rotary vertical shaft monitoring system (50) is arranged on the rotary axis of the beam body (9), and the beam axis positioning system (60) is arranged on the longitudinal axis of the end part of the beam body (9);
The digital weighing system (20) is used for carrying out balance weighing on the front of the beam body (9) rotating body through a hydraulic jack, measuring the vertical displacement distance of the beam body (9) during weighing, and sending data to the control system (10);
the beam deflection monitoring system (30) is used for monitoring the deflection value of the beam (9) at the bottom of the support after the support is removed and in the rotating process and sending data to the control system (10);
the space attitude measurement system (40) is used for measuring the space attitude change condition, the rotation angle and the rotation angular velocity of the beam body (9) in the rotation process and sending data to the control system (10);
the rotation vertical axis monitoring system (50) is used for measuring the three-dimensional coordinates and the horizontal azimuth angle of the rotation center of the beam body (9) and sending data to the control system (10);
the beam axis positioning system (60) is used for assisting in guiding the beam (9) axis to be in place and observing the beam transverse and longitudinal deviation values after being in place;
the control system (10) is used for controlling the digital weighing system (20) to work to guide the beam surface counterweight so as to keep the moment balance of the beam body (9) before turning; drawing a downwarping change curve of the beam body (9) according to the downwarping value obtained by the beam body deflection monitoring system (30) after the bracket is dismantled, and turning the beam body (9) after the downwarping value is stable; the rotation angle and the rotation speed of the beam body (9) are controlled through data acquired by a space attitude measurement system (40) and a rotation vertical axis monitoring system (50), and the beam body (9) is guided to be in place; the beam (9) axis is assisted in position by a beam axis positioning system (60).
2. The swivel bridge swivel construction monitoring system of claim 1, wherein: the digital weighing system (20) comprises a plurality of hydraulic jacks and displacement sensors, the hydraulic jacks and the displacement sensors are circumferentially distributed on the upper side of a lower bearing platform of the beam body (9), the output ends of the hydraulic jacks are connected with an upper bearing platform of the beam body (9), the output ends of the displacement sensors are connected with the lower side of the upper bearing platform of the beam body (9), and the hydraulic jacks and the displacement sensors are connected with the control system (10);
the control system (10) is used for controlling the hydraulic jack to work and acquiring the vertical displacement distance of the beam body (9) through the displacement sensor.
3. The swivel bridge swivel construction monitoring system of claim 1, wherein:
the beam deflection monitoring system (30) comprises a multi-axis sensor (24), wherein the multi-axis sensor (24) is arranged at the joint of webs and bottom plates of two ends of the beam body (9) and is used for monitoring the deflection value, horizontal change, shake and rotation inertia of the beam body (9) and transmitting data to the control system (10);
or the beam body deflection monitoring system (30) comprises 720-degree deformation monitoring prisms (1), angle steel brackets (3) are arranged at the joint of the left web plate and the right web plate of the two ends of the beam body (9) and the bottom plate, the upper sides of the angle steel brackets (3) are connected with the 720-degree deformation monitoring prisms (1) through connecting threads, and three-dimensional coordinate values of the 720-degree deformation monitoring prisms (1) are measured through a total station and sent to the control system (10).
4. The swivel bridge swivel construction monitoring system of claim 1, wherein: the space attitude measurement system (40) comprises a plurality of 720-degree deformation monitoring prisms (1), angle steel brackets (3) are installed at the joint of the left web plate and the right web plate of the two ends of the beam body (9) and the bottom plate, the upper sides of the angle steel brackets (3) are connected with the 720-degree deformation monitoring prisms (1) through connecting threads, the tops of the left side and the right side of the two ends of the beam body (9) are connected with the 720-degree deformation monitoring prisms (1) through embedded bolts, and the upper end faces of the two ends of the beam body (9) are connected with the 720-degree deformation monitoring prisms (1) through the embedded bolts.
5. The swivel bridge swivel construction monitoring system of claim 3 or 4, wherein: the 720-degree deformation monitoring prism (1) comprises a first top plate (12) and a first bottom plate (11) which are arranged at intervals up and down, a threaded hole (116) is formed in the center of the first bottom plate (11), a leveling device (13) for adjusting parallelism of the first bottom plate (11) and the first top plate (12) is arranged between the first bottom plate and the first top plate, a mounting groove (117) is formed in the lower side of the first top plate (12), a first motor (14) and a vertical shaft (15) are arranged in the mounting groove (117), a first pinion (16) is connected to the output end of the first motor (14), the vertical shaft (15) is positioned in the center of the first top plate (12), the outer peripheral surface sleeve of the lower extreme of vertical axle (15) is equipped with first gear wheel (17), first gear wheel (17) meshing connect in first pinion (16), the upper end of vertical axle (15) pass be connected with U type frame (18) behind first roof (12), the interior bottom wall of U type frame (18) is provided with T type horizontal bubble (19), all transversely be provided with first cross axle (110) in two lateral parts of U type frame (18), two be connected with first prismatic lens (111) between first cross axle (110), one of them lateral part of U type frame (18) is embedded to have power (112), the other side part is provided with a second motor (113), the output end of the second motor (113) is provided with a second pinion (114), the end part of the first transverse shaft (110) close to the second motor (113) is provided with a second large gear (115), the second large gear (115) is connected with the second pinion (114) in a meshed manner, the first motor (14) and the second motor (113) are connected with a power supply (112), and the axial lead of the vertical shaft (15) and the axial lead of the first transverse shaft (110) are mutually perpendicular and intersected;
The control system (10) is used for acquiring three-dimensional coordinate values of the 720-degree deformation monitoring prisms (1) through the total station to obtain the rotation angle and rotation angular velocity of the beam body (9) and the posture change condition of the beam body (9).
6. The swivel bridge swivel construction monitoring system of claim 5, wherein: the utility model discloses a U-shaped frame, including holding groove (118) and connecting post (121), holding groove (118) have been seted up to the upside of first roof (12), be provided with connecting bearing (119) in holding groove (118), the outer lane of connecting bearing (119) connect in the inner wall of holding groove (118), the inner race cover of connecting bearing (119) is located the outer peripheral face of vertical axis (15), still be provided with spliced pole (120) in holding groove (118), the upside of spliced pole (120) is connected with connecting plate (121), connecting plate (121) are circular, connecting plate (121) and spliced pole (120) all overlap to be located vertical axis (15), connecting plate (121) connect in the downside of U-shaped frame (18), the upside of connecting plate (121) is provided with pointer (122), the upside of first roof (12) is provided with circular scale mark (123), the center point to in on the center pin circular scale mark of vertical axis (15), pointer (122) point to in scale mark (123).
7. The swivel bridge swivel construction monitoring system of claim 1, wherein: the rotary vertical axis monitoring system (50) comprises an omnibearing self-adaptive prism (2), the omnibearing self-adaptive prism (2) is connected with the upper end face of a beam body (9) through a tripod (4), the omnibearing self-adaptive prism (2) comprises a base (22), a mounting shaft (21), a control unit (23), a multi-axis sensor (24), an adjusting module (25), a display module (26), a horizontal rotating module (27), a vertical rotating module (28), a laser ranging module (29), a prism frame (219) and a second prism lens (220), the multi-axis sensor (24), the adjusting module (25), the display module (26), the horizontal rotating module (27), the vertical rotating module (28), the laser ranging module (29) are connected with the control unit (23), the multi-axis sensor (24), the adjusting module (25), the display module (26) and the horizontal rotating module (27) are all arranged on the base (22), the mounting shaft (21) is rotationally connected with the base (22) through the horizontal rotating module (27), the laser ranging module (29) is connected with the lower end of the laser ranging module (29) at the center of the laser mirror frame (21), the second prism (220) is rotatably connected to the prism frame (219), the vertical rotation module (28) is connected with the second prism (220), and the multi-axis sensor (24) is connected with the control system (10);
The control system (10) is used for acquiring the three-dimensional coordinate value of the omnibearing self-adaptive prism (2) through the total station, measuring the horizontal azimuth angle of the beam body (9) through the multi-axis sensor (24), and displaying the real-time rotation state of the beam body (9) and the horizontal offset value of the rotation axis.
8. The swivel bridge swivel construction monitoring system of claim 7, wherein: the regulating module (25) comprises a motor driver (216), two fifth motors (217) and two gear transmission mechanisms (218), the motor driver (216) is connected with the control unit (23), the two fifth motors (217) are connected with the motor driver (216), the output ends of the fifth motors (217) are connected with the input ends of the gear transmission mechanisms (218), the output ends of the gear transmission mechanisms (218) are connected with the lower ends of the support rods (229), the horizontal rotating module (27) comprises a third motor (210), a third pinion (211) and a third large gear (212), the third motor (210) is connected with the control unit (23), the third motor (210) is connected with the lower side of the top plate (12), the third pinion (211) is connected with the output end of the third motor (210), the third large gear (212) is positioned in the through hole (226) and is connected with the lower end of the support rods (229), the horizontal rotating module (27) comprises a third motor (210), a third pinion (211) and a third large gear (212), the third pinion (213) is arranged on the outer peripheral surface of the driving module (213), the driving module (213) is arranged on the outer peripheral surface of the driving module (213), the fourth motor (213) is connected to the outer side of the prism frame (219), the output end of the fourth motor passes through the prism frame (219) and then is located at the inner side of the prism frame (219), the driving gear (214) is connected to the output end of the fourth motor (213), the driven gear (215) is connected to the driving gear (214) in a meshed mode, the second prism (220) is connected to the prism frame (219) in a rotating mode through a second transverse shaft (222), and the driven gear (215) is sleeved on the second transverse shaft (222).
9. The swivel bridge swivel construction monitoring system of claim 1, wherein: the beam axis positioning system (60) comprises a plumb gauge (5) and an organic glass plate (6), wherein the organic glass plate (6) is connected to one end of the beam body (9), a cross coordinate scale (61) is arranged at the center of the organic glass plate (6), the longitudinal axis of the cross coordinate scale (61) coincides with the longitudinal axis of the beam body (9), a tripod (4) is connected to the lower side of the plumb gauge (5), the tripod (4) is arranged on the ground, the plumb gauge (5) is arranged relative to the design longitudinal axis of the beam body, and a compass (7) and a horizontal bubble (8) are arranged on the upper side of the organic glass plate (6);
the beam axis positioning system (60) is used for assisting the beam axis (9) to be positioned and observing the transverse and longitudinal deviation values after being positioned through the plumb bob (5) and the cross coordinate scale (61).
10. A construction method of the swivel bridge swivel construction monitoring system as claimed in claim 1, characterized in that: the construction method comprises the following steps:
s1, lifting the longitudinal direction and the transverse direction of a beam body (9) in front of a swivel through a digital weighing system (20), simultaneously acquiring a pressure value of a hydraulic oil pressure sensor and a displacement value of a displacement sensor, calculating a spherical hinge friction resistance moment of an upper bearing platform, an unbalanced moment of the beam body (9), a static friction resistance coefficient of the spherical hinge and an eccentric moment of a swivel body, selecting a counterweight position to carry out counterweight calculation by utilizing a lever principle, and applying a counterweight according to a calculation result to ensure that the structure gravity center and the rotation axis center of the beam body (9) coincide or the horizontal distance is kept within a design value, wherein the balance weighing of the beam body (9) is finished;
S2, carrying out integral or end section scanning on the outer contour of the beam body (9) before turning by a three-dimensional laser scanner or a laser section instrument and a total station; monitoring a lower deflection line of the beam body (9) through a beam body deflection monitoring system (30), and turning the beam body (9) after the numerical value is stable;
s3, in the turning process of the beam body (9), monitoring the horizontal change, shaking and rotation inertia of the beam body (9) in real time through a beam body deflection monitoring system (30); the space attitude measurement system (40) calculates the rotation angle and rotation angular velocity of the beam body (9) by measuring the three-dimensional coordinates of the beam body (9) in the rotating process; the three-dimensional coordinates and the horizontal azimuth angle of the rotation center of the beam body (9) are continuously monitored in real time in the rotating process by a rotation vertical shaft monitoring system (50), and the horizontal offset value and the real-time rotation state of the rotation axis of the beam body (9) are displayed;
s4, when the beam body (9) is about to be positioned, the longitudinal axis of the beam body (9) is assisted to be positioned by a beam body axis positioning system (60) and the transverse and longitudinal deviation values after being positioned are observed;
s5, after the turning is finished, carrying out integral or end section scanning on the outer contour of the beam body (9) through a three-dimensional laser scanner or a laser section instrument and a total station, comparing the front time data and the rear time data to obtain a space offset value in the turning process of the beam body (9), and then carrying out fine adjustment and resetting on the beam body (9) through a hydraulic jack;
S6, performing side span cast-in-place section construction after rotation, removing temporary constraint of the support, unloading the bottom die, enabling the support to bear force, performing system conversion, and continuously performing creep monitoring on the beam body (9) through the space attitude measurement system (40) after the system conversion of the beam body (9) and before pavement construction, so as to provide reference for next pavement construction.
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| CN202310411174.6A CN116448177A (en) | 2023-04-17 | 2023-04-17 | Swivel bridge swivel construction monitoring system and construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117906847A (en) * | 2023-12-05 | 2024-04-19 | 中铁七局集团第四工程有限公司 | Unbalanced force monitoring device and method for bridge swivel structure |
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2023
- 2023-04-17 CN CN202310411174.6A patent/CN116448177A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117906847A (en) * | 2023-12-05 | 2024-04-19 | 中铁七局集团第四工程有限公司 | Unbalanced force monitoring device and method for bridge swivel structure |
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