CN114440848A - Large-volume capping beam hoisting measurement control method and device suitable for assembly type bridge construction - Google Patents
Large-volume capping beam hoisting measurement control method and device suitable for assembly type bridge construction Download PDFInfo
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- G—PHYSICS
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
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Abstract
The invention provides a large-volume capping beam hoisting measurement control method and device suitable for assembled bridge construction, which comprises a Leica reflector for marking, a Leica total station for measuring and measurement software capable of being linked with the total station, wherein the prism mode of the total station is adjusted into a reflector mode, the instrument is connected with a mobile phone surveyor through Bluetooth, the pile number and the offset distance of the pasting position of the reflector are input into the software, then the coordinates of two reflectors on the front side are measured, the software can directly calculate the transverse bridge direction and the forward bridge direction moving direction and distance of an observed point, and field adjustment is carried out according to the result given by the software so as to ensure the axial line position of a capping beam. According to the invention, based on the characteristic of large-volume capping beams in the assembled bridge, the mounting position of the come card reflector is reasonably arranged by combining the mounting construction state of the on-site capping beams. The invention also provides a large-volume bent cap hoisting measurement control method suitable for the construction of the assembled bridge.
Description
Technical Field
The invention particularly relates to the technical field of fine installation of prefabricated bent caps, and particularly relates to a large-volume bent cap hoisting measurement control method and device suitable for construction of an assembled bridge.
Background
With the popularization of the assembled bridge in China, the share of the assembled bridge in the country is continuously increased by virtue of the advantages of reliable quality, high construction speed, high safety and the like. 312 south Beijing of national road changes the enlargement project around the highway to the Xianhui North road section and is regarded as the domestic assembly type bridge project with the widest bridge width and the heaviest cap beam section tonnage, and is the first assembly type highway bridge project in Jiangsu province. The hoisting of the prefabricated bent cap is used as an important ring for project construction, the installation accuracy of the prefabricated bent cap needs to be precisely controlled through precise measurement, and when a traditional bent cap hoisting measurement method axis control method is used, the problems that the site is limited, the inner side cannot be observed, the elevation cannot be controlled in real time and the like occur.
At present, although the research on the hoisting technology of the large-volume bent cap in the assembled bridge at home and abroad shows diversified research trends, the research mainly focuses on the structural design and construction management research of the prefabricated bent cap, and the research on the hoisting precision of the large-volume bent cap through measurement and control is less. In recent years, the installation of the prefabricated bent cap in foreign countries is mainly related to external auxiliary equipment such as a bridge girder erection machine. Many domestic scholars also conduct comprehensive research on the construction technology of the fabricated bridge according to the development of the fabricated bridge.
The method for hoisting the assembled bridge bent cap at home and abroad still takes an axis control method as a main method, the observation is carried out by using a traditional BMW paste, but along with the rapid development of the assembled bridge, the axis control method is not applicable to inverted T-shaped bent caps with six-lane and eight-lane sections, multiple problems of limited site, incapability of observing the inner side, incapability of controlling the elevation in real time and the like occur, and in the face of new requirements of improvement of the installation precision of the assembled bridge, compression in the installation time and the like, a new measurement control method needs to be developed for hoisting the large-size bent cap of the assembled bridge.
At present, the laika reflector plate is used for measurement control in environments with poor light such as tunnel construction, and the reflector plate is also used for observation when a monitoring unit carries out deformation monitoring. Therefore, the laika reflector is pasted on the prism card, the prism and the reflector are observed by using a total station, distance and elevation observed values are recorded respectively, and a large number of experiments prove that the laika reflector is pasted on the bent cap, and the purpose of real-time monitoring and real-time control can be achieved by observing the reflector.
Disclosure of Invention
The invention aims to provide a large-volume bent cap hoisting measurement control method suitable for construction of an assembled bridge, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a large-volume bent cap hoisting measurement control method suitable for assembly type bridge construction comprises the following steps:
step S01: determining an installation cover beam according to site construction requirements, and determining the installation position of come card reflectors according to the shape characteristics of the cover beam, wherein the specific sticking positions are one piece of cover beam front surface inside and outside and one piece of back surface (one piece of back surface can be stuck on the inside or outside, and the specific sticking position is determined according to site conditions);
step S02: after the pasting layout is determined, pasting a come card reflector at the pasting position, sticking the back side of the come card reflector one by using a straight ruler to extend out of the cover beam, ensuring stability and recording the pasting position;
step S03: determining the position for erecting the observation instrument according to the position for installing the bent cap, wherein the erecting position and the station setting mode are not limited, and only 3 reflectors can be observed;
step S04: erecting a total station according to a preset erection position, adjusting the position of the total station according to observation contents, and ensuring that the total station can observe 3 come card reflectors;
step S05: adjusting the prism mode of the total station instrument into a reflector mode, and connecting the instrument with a mobile phone surveyor in a Bluetooth mode;
step S06: adjusting the heights of the top of the upright post and the temporary supporting top, pasting a reflector plate after adjustment, hoisting a hole of a bent cap lifting beam to be installed, and simultaneously monitoring the bent cap hoisting through a total station to ensure that the bent cap hoisting meets design specifications and precision standards;
step S07: the adjustment suggestion of the bent cap is given by observing the reflector plate, and the position of the bent cap is adjusted;
step S08: when the cover beam falls to a position 5 cm away from the top of the upright column, inputting the pile number and offset of the pasting position of the reflector in software, and then carrying out coordinate measurement on the two reflectors on the front side;
step S09: after obtaining the measurement information, the surveyor software can directly calculate the moving direction and distance of the observed point in the transverse bridge direction and the forward bridge direction according to a built-in formula;
step S10: automatically calculating an observation result by software, comparing the observation result with a specified value or an allowable deviation of the installation axis position of the bridge bent cap, and judging whether the observation result meets the requirement or not, if not, informing field constructors and adjusting the position of the bent cap;
step S11: if the set value or the allowable deviation of the installation axis position of the bent cap is met, then performing elevation measurement on two reflectors on the front surface and one reflector on the back surface, and adjusting the elevation of the 3 reflectors to a design value for controlling the elevation and the perpendicularity of the bent cap;
step S12: comparing the deviation according to the elevation of the observation reflector and the design value, judging whether the elevation and the verticality of the bent cap meet the specified values or the allowable deviation, if not, continuing to prompt field constructors according to software results, and adjusting the mounting elevation position of the bent cap until the mounting elevation position meets the design requirements;
step S13: if the height and verticality specified values or allowable deviations of the bent cap are met, the bent cap installation position result is measured again;
step S14: judging whether the retest result is qualified, if the retest result is unqualified, continuously adjusting the position of the cover beam until the cover beam is qualified;
step S15: if the retest result is qualified, the beam falls after the position adjustment is finished, and the sand cylinder is waited to be settled and compacted;
step S16: after the sedimentation is finished, performing elevation measurement on two reflectors on the front surface and one reflector on the back surface, completing retesting and fine-tuning the position of the cover beam;
step S17: and when the axial position of the bent cap, the elevation and perpendicularity specified values or allowed deviations are obtained, the bent cap is hoisted, and marks are drawn on the bent cap and the upright post after the hoisting is finished.
Further scheme: the Leica reflector plate has a flat surface and is provided with an adhesive surface which is easy to adhere.
Further scheme: the Leica reflecting sheet has two sticking modes on the bent cap:
the first pasting mode is as follows: a come card reflector is respectively stuck on the left side and the right side of the front surface of the bent cap, and a come card reflector is stuck on the left side of the back surface of the bent cap;
the first pasting mode is as follows: a come card reflector is respectively stuck on the left side and the right side of the front surface of the bent cap, and a come card reflector is stuck on the right side of the back surface of the bent cap.
Further scheme: the erection position and the station setting mode of the measuring instrument are not limited, and 3 reflectors can be observed.
Further scheme: the measurer software is measurement and calculation software matched with the total station and is used for inputting pile numbers and offset distances of the pasting positions of the reflectors, carrying out coordinate measurement on the two reflectors on the front surface and obtaining the transverse bridge direction and the forward bridge direction moving direction and distance of an observation point.
Further scheme: in step S06, the method for adjusting the elevation of the column top and the temporary supporting top includes: and the on-site constructor uses the ascending vehicle to cooperate with a measurer to measure the elevation of the top of the upright post and the temporary supporting top, after the measurement and the record are finished, the height is compared with a design value to give the thickness of the needed cushion steel plate, and the reflector plate is adhered after the adjustment is finished.
Further scheme: the method for measuring the elevation of the bent cap comprises the following steps: and adjusting the elevations of the 3 reflectors to a design value for controlling the elevation and the verticality of the bent cap, wherein the design value is the elevation of the 0% position of the transverse slope of the bent cap plus the reflector 1/2.
A device for measuring and controlling hoisting of a large-volume bent cap suitable for construction of an assembled bridge comprises the following steps:
the marking device comprises three come card reflectors and is used for marking and observing the position information of the bent cap under the condition that the visual field of a post-measurer is insufficient;
the measuring device is measured by a total station instrument, the specific model is not limited, and the measuring device can be preferably connected by Bluetooth and is used for constructors to determine the position coordinate information of the bent cap;
the data processing device, namely measurer software, is used for importing the observed coordinate information of the come card reflector adhered to the capping beam into software for processing, and obtaining the coordinate value of each pile number capping beam and comparing the coordinate value with the design value to obtain a difference value;
and the communication device is used for connecting the total station with the surveyor software through the Bluetooth adapter and used for editing parameters required by the software to finish data information transmission.
Compared with the prior art, the invention has the beneficial effects that:
(1) the installation is convenient, and the efficiency is improved. The sticking surface of the laika reflector plate is flat and easy to stick, the sticking position is convenient to observe, a measuring device instrument is not limited by a field, the range of the instrument can be set up to be larger, the observation point position does not need to be arranged in advance, and the instrument station position can be adjusted at any time on the field. According to the invention, the current instrument is directly used after the elevations of the pier column top and the temporary supporting top are adjusted without the need of lofting of an observation point. The elevation can be observed and adjusted in real time in the process of hoisting in a test mode, the follow-up retest process is not needed, the bent cap only needs to be lifted by about 20cm when slurry is set, the final installation only needs to be carried out by directly dropping the beam for fine adjustment, and the installation of each bent cap section can be controlled to be finished within 3 hours on average according to the actual installation condition on site.
(2) According to the method, when the bent cap is installed, an instrument can directly observe coordinates and elevation, the deviation and elevation conditions of the whole bent cap can be observed in real time and adjusted, compared with the traditional measurement control scheme that only the relative difference of the BMW pasters can be observed, the difference of the BMW pasters on the front side is 5mm in mileage direction error and cannot be accurately adjusted according to the ratio of 5:1 of length to width and 1mm of error of each BMW paster on the front side. According to the invention, the deviation condition of the axis of the bent cap can be visually observed, the observation precision is 1mm (a high-precision instrument can be accurate to 0.1mm), and the target requirement is met.
Taking G312 reconstruction and expansion project 55# -2 bent cap hoisting as an example, after the bent cap hoisting is finished, under the safety protection measures, a measurer adopts a prism to recheck the axial position and the elevation of the bent cap from the top of the bent cap, and the data are consistent with the measurement result of the invention.
(3) The economy of the installation of the bent cap is improved. In the invention, each bent cap only needs one instrument and one measuring person. The axial line position can be directly expressed by observing the calculation result of the Leica reflection sheet, only the top surface elevation needs to be calculated, 2 reflection sheets are needed for each bent section, each bent section is about 0.8 yuan (the back ruler is taken down for repeated use after being hoisted), the bending die is directly pasted, the bending die is simple and convenient, the prefabricated bent section uses a shaping die plate, the waist line position is unified, and the measurement result is reliable.
It should be understood that all combinations of the foregoing concepts and additional concepts described in greater detail below can be considered as part of the inventive subject matter of this disclosure unless such concepts are mutually inconsistent. In addition, all combinations of claimed subject matter are considered a part of the presently disclosed subject matter.
Drawings
Fig. 1 is a flow chart of a large-volume capping beam hoisting measurement control method suitable for assembly bridge construction.
Fig. 2 is a system block diagram of a large-volume capping beam hoisting measurement control device suitable for the construction of an assembled bridge.
Fig. 3 is a schematic structural view of a come card reflector plate in a large-volume capping beam hoisting measurement control method suitable for assembly bridge construction.
Fig. 4 is a structural schematic diagram of a first pasting mode in the large-volume capping beam hoisting measurement control method suitable for assembly type bridge construction.
Fig. 5 is a structural schematic diagram of a second pasting mode in the large-volume capping beam hoisting measurement control method suitable for assembly type bridge construction.
Fig. 6 is a schematic diagram of the total station erection range in the large-volume capping beam hoisting measurement control method suitable for assembly bridge construction.
Fig. 7 is a schematic diagram of the measurement of the elevation of the temporary supporting roof in the large-volume capping beam hoisting measurement control method suitable for the construction of the fabricated bridge.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1 to 4, in an embodiment of the present invention, a method for controlling hoisting and measuring a large-volume capping beam suitable for an assembled bridge construction includes the following steps:
step S01: determining an installation cover beam according to site construction requirements, and determining the installation position of come card reflectors according to the shape characteristics of the cover beam, wherein the specific sticking positions are one piece of cover beam front surface inside and outside and one piece of back surface (one piece of back surface can be stuck on the inside or outside, and the specific sticking position is determined according to site conditions);
step S02: after the pasting layout is determined, pasting a come card reflector at the pasting position, sticking the back side of the come card reflector one by using a straight ruler to extend out of the cover beam, ensuring stability and recording the pasting position;
step S03: determining the position for erecting the observation instrument according to the position for installing the bent cap, wherein the erecting position and the station setting mode are not limited, and only 3 reflectors can be observed;
step S04: erecting a total station according to a preset erection position, adjusting the position of the total station according to observation contents, and ensuring that the total station can observe 3 come card reflectors;
step S05: adjusting the prism mode of the total station instrument into a reflector mode, and connecting the instrument with a mobile phone surveyor in a Bluetooth mode;
step S06: adjusting the heights of the top of the upright post and the temporary supporting top, pasting a reflector plate after adjustment, hoisting the hole to be installed by the bent cap lifting beam, and simultaneously monitoring the bent cap hoisting by a total station to ensure that the bent cap hoisting meets the design specification and the precision standard;
step S07: the adjustment suggestion of the bent cap is given by observing the reflector plate, and the position of the bent cap is adjusted;
step S08: when the cover beam falls to a position 5 cm away from the top of the upright column, inputting the pile number and offset of the pasting position of the reflector in software, and then carrying out coordinate measurement on the two reflectors on the front side;
step S09: after obtaining the measurement information, the surveyor software can directly calculate the moving direction and distance of the observed point in the transverse bridge direction and the forward bridge direction according to a built-in formula;
step S10: automatically calculating an observation result by software, comparing the observation result with a specified value or an allowable deviation of the installation axis position of the bridge bent cap, and judging whether the observation result meets the requirement or not, if not, informing field constructors and adjusting the position of the bent cap;
step S11: if the set value or the allowable deviation of the installation axis position of the bent cap is met, then performing elevation measurement on two reflectors on the front surface and one reflector on the back surface, and adjusting the elevation of the 3 reflectors to a design value for controlling the elevation and the perpendicularity of the bent cap;
step S12: comparing the deviation according to the elevation of the observation reflector and the design value, judging whether the elevation and the verticality of the bent cap meet the specified values or the allowable deviation, if not, continuing to prompt field constructors according to software results, and adjusting the mounting elevation position of the bent cap until the mounting elevation position meets the design requirements;
step S13: if the height and verticality specified values or allowable deviations of the bent cap are met, the bent cap installation position result is measured again;
step S14: judging whether the retest result is qualified, if the retest result is unqualified, continuously adjusting the position of the cover beam until the cover beam is qualified;
step S15: if the retest result is qualified, the beam falls after the position adjustment is finished, and the sand cylinder is waited to be settled and compacted;
step S16: after the sedimentation is finished, performing elevation measurement on two reflectors on the front surface and one reflector on the back surface, completing retesting and fine-tuning the position of the cover beam;
step S17: and when the axial position of the bent cap, the elevation and perpendicularity specified values or allowed deviations are obtained, the bent cap is hoisted, and marks are drawn on the bent cap and the upright post after the hoisting is finished.
Referring to fig. 3, in a further embodiment of the present invention, the concrete size of the come card reflector is not limited in the method, and it is sufficient if it meets the actual use requirement;
referring to fig. 4-5, in a further embodiment, the come card reflector sheet has two attachment ways on the bent cap,
the first pasting mode is as follows: a come card reflector is respectively stuck on the left side and the right side of the front surface of the bent cap, and a come card reflector is stuck on the left side of the back surface of the bent cap;
the first pasting mode is as follows: a come card reflector is respectively stuck on the left side and the right side of the front surface of the bent cap, and a come card reflector is stuck on the right side of the back surface of the bent cap;
the selection of the concrete attachment method of the come card reflecting sheet may be determined according to the mounting position of the head beam.
In a further embodiment, in the method, the erection position and the setting mode of the measuring instrument are not limited, 3 reflectors can be observed, and the erection position can be as shown in fig. 6.
In a further embodiment, the surveyor software of the method is measurement calculation software matched with a total station, the pile number and the offset distance of the pasting position of the reflector are input into the software, then the coordinates of the two reflectors on the front side are measured, the software can directly calculate the moving direction and the distance of the observed point in the transverse bridge direction and the forward bridge direction, the mobile surveyor software can be connected with the total station for measuring in a Bluetooth mode (if the instrument does not have the Bluetooth function, the surveyor software can be used for manually inputting an observation result for carrying out reverse calculation), and the software obtains the cover beam coordinates corresponding to the pile number through calculation and compares the cover beam coordinates with a design value to give a cover beam position adjustment suggestion.
In a further embodiment, in the method, the heights of the top of the upright post and the temporary supporting top are adjusted, namely, a field constructor uses a climbing vehicle to cooperate with a measurer to measure the heights of the top of the upright post and the temporary supporting top, after the measurement and the record are finished, the height is compared with a design value, the thickness of a required cushion steel plate is given (taking certain field installation data as an example, as shown in table 1), and a reflector plate is pasted after the adjustment is finished. The schematic elevation measurement of the column top and the temporary supporting top is shown in fig. 7.
Table 1 statistical table for adjusting elevation of column top and temporary supporting top
In a further embodiment, the requirements of the measurement items and the specified values or allowable deviation values of the measurement axis and the elevation during the hoisting of the cover beam in the method are as shown in table 2:
TABLE 2 lifting and actual measurement items of bent cap prefabricated parts
In a further embodiment, when the method is used for measuring the elevation of the bent cap, the elevation of the 3 reflectors is adjusted to a design value for controlling the elevation and the perpendicularity of the bent cap, wherein the design value is the elevation at 0% of the transverse slope of the bent cap + the reflector 1/2.
Example 2
The invention provides a device for measuring and controlling hoisting of a large-volume bent cap, which is suitable for construction of an assembled bridge, and comprises the following components:
the marking device comprises three come card reflectors and is used for marking and observing the position information of the bent cap under the condition that the visual field of a post-measurer is insufficient;
the measuring device is measured by a total station instrument, the specific model is not limited, and the measuring device can be preferably connected by Bluetooth and is used for constructors to determine the position coordinate information of the bent cap;
the data processing device, namely measurer software, is used for importing the observed coordinate information of the come card reflector adhered to the capping beam into software for processing, and obtaining the coordinate value of each pile number capping beam and comparing the coordinate value with the design value to obtain a difference value;
the communication device is used for connecting the total station with the surveyor software through the Bluetooth adapter and used for editing parameters required by the software to complete data information transmission;
furthermore, in the embodiment of the invention, the equipment and instruments are not limited by sites, the erection range of the instruments is large, observation point positions do not need to be arranged in advance, and the instrument station positions can be adjusted at any time on site;
in a further embodiment, the deviation and elevation conditions of the whole bent cap can be observed and adjusted in real time, the obtained measurement result is high in precision, data are visual, adjustment is convenient during bent cap installation, and the yield of one-time bent cap falling is greatly improved;
in a further embodiment, the pasting surface of the come card reflector plate is flat and easy to paste, the pasting position is convenient to observe, the calculation result can visually represent the axis position, only the top surface elevation needs to be calculated, each bent cap segment needs 2 reflectors, each reflector is about 0.8 yuan (the back ruler is taken down for repeated use after being hoisted), the pasting is direct, the operation is simple and convenient, the prefabricated bent cap uses the shaping template, the waist line position is uniform, and the measurement result is reliable.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. A large-volume bent cap hoisting measurement control method suitable for assembly type bridge construction is characterized by comprising the following steps:
step S01: determining an installation cover beam according to site construction requirements, and determining the installation position of come card reflectors according to the shape characteristics of the cover beam, wherein the specific sticking positions are one piece of cover beam front surface inside and outside and one piece of back surface (one piece of back surface can be stuck on the inside or outside, and the specific sticking position is determined according to site conditions);
step S02: after the pasting layout is determined, pasting a come card reflector at the pasting position, sticking the back side of the come card reflector one by using a straight ruler to extend out of the cover beam, ensuring stability and recording the pasting position;
step S03: determining the position for erecting the observation instrument according to the position for installing the bent cap, wherein the erecting position and the station setting mode are not limited, and only 3 reflectors can be observed;
step S04: erecting a total station according to a preset erection position, adjusting the position of the total station according to observation contents, and ensuring that the total station can observe 3 come card reflectors;
step S05: adjusting the prism mode of the total station instrument into a reflector mode, and connecting the instrument with a mobile phone surveyor in a Bluetooth mode;
step S06: adjusting the heights of the top of the upright post and the temporary supporting top, pasting a reflector plate after adjustment, hoisting a hole of a bent cap lifting beam to be installed, and simultaneously monitoring the bent cap hoisting through a total station to ensure that the bent cap hoisting meets design specifications and precision standards;
step S07: the adjustment suggestion of the bent cap is given by observing the reflector plate, and the position of the bent cap is adjusted;
step S08: when the cover beam falls to a position 5 cm away from the top of the upright column, inputting the pile number and offset of the pasting position of the reflector in software, and then carrying out coordinate measurement on the two reflectors on the front side;
step S09: after obtaining the measurement information, the surveyor software can directly calculate the moving direction and distance of the observed point in the transverse bridge direction and the forward bridge direction according to a built-in formula;
step S10: automatically calculating an observation result by software, comparing the observation result with a specified value or an allowable deviation of the installation axis position of the bridge bent cap, and judging whether the observation result meets the requirement or not, if not, informing field constructors and adjusting the position of the bent cap;
step S11: if the set value or the allowable deviation of the installation axis position of the bent cap is met, then performing elevation measurement on two reflectors on the front surface and one reflector on the back surface, and adjusting the elevation of the 3 reflectors to a design value for controlling the elevation and the perpendicularity of the bent cap;
step S12: comparing the deviation according to the elevation of the observation reflector and the design value, judging whether the elevation and the verticality of the bent cap meet the specified values or the allowable deviation, if not, continuing to prompt field constructors according to software results, and adjusting the mounting elevation position of the bent cap until the mounting elevation position meets the design requirements;
step S13: if the elevation and the verticality specified values or the allowable deviation of the bent cap are met, the bent cap installation position result is measured again;
step S14: judging whether the retest result is qualified, if the retest result is unqualified, continuously adjusting the position of the cover beam until the cover beam is qualified;
step S15: if the retest result is qualified, the beam falls after the position adjustment is finished, and the sand cylinder is waited to be settled and compacted;
step S16: after the sedimentation is finished, performing elevation measurement on two reflectors on the front surface and one reflector on the back surface, completing retesting and fine-tuning the position of the cover beam;
step S17: and when the axial position of the bent cap, the elevation and perpendicularity specified values or allowed deviations are obtained, the bent cap is hoisted, and marks are drawn on the bent cap and the upright post after the hoisting is finished.
2. The hoisting measurement control method for large-volume bent cap suitable for assembled bridge construction according to claim 1, characterized in that the come card reflector plate is flat in surface and is provided with an adhesive surface easy to adhere.
3. The hoisting measurement control method for the large-volume bent cap suitable for the construction of the assembled bridge according to claim 1, characterized in that the come card reflector plate has two sticking modes on the bent cap:
the first pasting mode is as follows: a come card reflector is respectively stuck on the left side and the right side of the front surface of the bent cap, and a come card reflector is stuck on the left side of the back surface of the bent cap;
the first pasting mode is as follows: a come card reflector is respectively stuck on the left side and the right side of the front surface of the bent cap, and a come card reflector is stuck on the right side of the back surface of the bent cap.
4. The large-volume bent cap hoisting measurement control method suitable for assembly type bridge construction according to claim 1, wherein the erection position and the standing mode of the measuring instrument are not limited, and 3 reflective sheets can be observed.
5. The method for controlling the hoisting of the large-volume capping beam suitable for the construction of the fabricated bridge according to claim 1, wherein the surveyor software is a measurement and calculation software matched with a total station, and is used for inputting the pile number and the offset distance of the pasting position of the reflector, performing coordinate measurement on two reflectors in the front surface, and acquiring the moving direction and the distance of an observation point in the transverse bridge direction and the forward bridge direction.
6. The hoisting measurement control method for the large-volume bent cap suitable for the construction of the fabricated bridge according to claim 1, wherein in the step S06, the method for adjusting the elevation of the top of the upright post and the temporary supporting top comprises the following steps: and the on-site constructor uses the ascending vehicle to cooperate with a measurer to measure the elevation of the top of the upright post and the temporary supporting top, after the measurement and the record are finished, the height is compared with a design value to give the thickness of the needed cushion steel plate, and the reflector plate is adhered after the adjustment is finished.
7. The hoisting measurement control method for the large-volume bent cap suitable for the construction of the fabricated bridge according to claim 1, wherein the method for measuring the height of the bent cap is as follows: and adjusting the elevations of the 3 reflectors to a design value for controlling the elevation and the verticality of the bent cap, wherein the design value is the elevation of the 0% position of the transverse slope of the bent cap plus the reflector 1/2.
8. The device for controlling the hoisting measurement of the large-volume capping beam suitable for the construction of the fabricated bridge according to the claims 1 to 7 is characterized by comprising the following steps:
the marking device comprises three come card reflectors and is used for marking and observing the position information of the bent cap under the condition that the visual field of a post-measurer is insufficient;
the measuring device is measured by a total station instrument, the specific model is not limited, and the measuring device can be preferably connected by Bluetooth and is used for constructors to determine the position coordinate information of the bent cap;
the data processing device, namely measurer software, is used for importing the observed coordinate information of the come card reflector adhered to the capping beam into software for processing, and obtaining the coordinate value of each pile number capping beam and comparing the coordinate value with the design value to obtain a difference value;
and the communication device is used for connecting the total station with the surveyor software through the Bluetooth adapter and used for editing parameters required by the software to complete data information transmission.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210062446.1A CN114440848A (en) | 2022-01-19 | 2022-01-19 | Large-volume capping beam hoisting measurement control method and device suitable for assembly type bridge construction |
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| CN202210062446.1A CN114440848A (en) | 2022-01-19 | 2022-01-19 | Large-volume capping beam hoisting measurement control method and device suitable for assembly type bridge construction |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008057243A (en) * | 2006-08-31 | 2008-03-13 | Penta Ocean Construction Co Ltd | Method and device for managing building of bridge |
| CN206368328U (en) * | 2016-12-08 | 2017-08-01 | 济南城建集团有限公司 | A kind of box beam four moves integrally die carrier structure across one-piece casting |
| CN112211106A (en) * | 2020-10-29 | 2021-01-12 | 中铁四局集团第一工程有限公司 | Method for installing prefabricated bent cap of viaduct |
| CN112554073A (en) * | 2020-12-18 | 2021-03-26 | 中交装配式建筑科技有限公司 | Intelligent mounting system for assembled bridge |
| CN112729107A (en) * | 2020-12-18 | 2021-04-30 | 中交装配式建筑科技有限公司 | Intelligent monitoring method, system and equipment for position of hoisting object |
-
2022
- 2022-01-19 CN CN202210062446.1A patent/CN114440848A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008057243A (en) * | 2006-08-31 | 2008-03-13 | Penta Ocean Construction Co Ltd | Method and device for managing building of bridge |
| CN206368328U (en) * | 2016-12-08 | 2017-08-01 | 济南城建集团有限公司 | A kind of box beam four moves integrally die carrier structure across one-piece casting |
| CN112211106A (en) * | 2020-10-29 | 2021-01-12 | 中铁四局集团第一工程有限公司 | Method for installing prefabricated bent cap of viaduct |
| CN112554073A (en) * | 2020-12-18 | 2021-03-26 | 中交装配式建筑科技有限公司 | Intelligent mounting system for assembled bridge |
| CN112729107A (en) * | 2020-12-18 | 2021-04-30 | 中交装配式建筑科技有限公司 | Intelligent monitoring method, system and equipment for position of hoisting object |
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