Construction method of cable-stayed buckling cantilever pouring reinforced concrete box type arch bridge

Abstract

The invention discloses a construction method of a cable-stayed buckling cantilever casting reinforced concrete box-type arch bridge, which comprises the following steps of: acquiring arch bridge construction information, and establishing a BIM (Building Information Modeling) model according to the arch bridge construction information; constructing according to the BIM model, anchoring a first box-type arch ring section, obtaining a first anchoring cable force, and obtaining a first anchoring error and first arch ring anchoring information; a finite element model is established, a first cable force influence matrix is established according to the first anchor fixing cable force and the first arch ring anchor fixing information, a second anchor fixing cable force is obtained through the first cable force influence matrix, and a second box type arch ring segment is fixed and anchored; s3, repeating the steps S2-S3 until the box-shaped arch ring is closed, performing concrete pouring, and determining the information of the supporting column on the arch based on an optimization algorithm; updating the finite element model, carrying out load simulation, obtaining a load weak area, and carrying out load early warning on the load weak area; the arch bridge construction process is refined, the construction efficiency is improved, the load bearing capacity of the arch bridge is improved, and bridge dangerous accidents are prevented.

Description

Technical Field

[0001] The invention relates to the technical field of bridge construction, and in particular to a construction method for a cantilever cast reinforced concrete box-type arch bridge using an inclined stay buckle. Background Art

[0002] In recent years, many large-span reinforced concrete arch bridges have been built in China using the cantilever casting method. Compared with the cantilever assembly method in which the arch ring is divided into ribs in the transverse direction of the bridge and segments in the longitudinal direction of the bridge, the cantilever casting method has the advantages of good arch integrity and less construction space. In order to reduce the arch ring bending moment and control the arch ring line shape in the cantilever stage, it is usually necessary to use the tower inclined cable hanging form of the arch ring and the anchor cable balance cable. At the same time, with the rapid development of computer technology, combining computer technology with bridge construction has become an important topic at present.

[0003] At present, a Chinese invention with publication number CN115992490A discloses a method for cantilever casting of a large-span concrete arch bridge with a cable-stayed buckle. Although the method achieves the purpose of safe and stable construction of a large-span concrete arch bridge, shortens the anchoring distance of the buckle, thereby reducing the construction cost, enhancing the safety and stability of the arch ring, and increasing the span of the arch ring, it does not combine computer technology for construction, and the construction process is not intelligent enough, which leads to low efficiency and requires a lot of manpower and material resources. In addition, the linearity of the arch ring is not precisely adjusted, and the preset force requirements of the arch bridge cannot be fully met. In addition, the arch support is not adjusted, and the load maximization of the arch bridge cannot be achieved. Summary of the invention

[0004] The technical problem solved by the present invention is that the existing technology does not combine computer technology for construction, the construction process is not intelligent enough and the efficiency is low, a large amount of manpower and material resources are required, and there is no precise adjustment for the linearity of the arch ring, which cannot fully meet the preset force requirements of the arch bridge, and there is no adjustment for the arch support, which cannot maximize the load of the arch bridge.

[0005] In order to solve the above technical problems, the present invention provides a construction method for a cantilever cast reinforced concrete box-type arch bridge by using a cable-stayed buckle, comprising the following steps: Step S1, obtaining arch bridge construction information, and establishing a BIM model according to the arch bridge construction information; Step S2, constructing the approach bridge structure, arch seat, boundary pier, temporary pier, buckle tower and cable hanging system according to the BIM model, anchoring the first box-type arch ring segment by using the cable hanging system, and obtaining the first anchoring cable force, collecting the first anchoring image by using the visual sensor on the tower, and obtaining the first anchoring error and the first arch ring anchoring information according to the first anchoring image; Step S3, establishing a finite element model for the BIM model, establishing a first cable force influence matrix according to the first anchor cable force and the first arch ring anchor information, obtaining the second anchor cable force through the first cable force influence matrix, and anchoring the second box-type arch ring segment by using the second anchor cable force; Step S4, repeating steps S2 to S3 until all the box-type arch ring segments are installed and the arch ring is closed, pouring concrete on the main arch ring, and determining the arch support information based on the finite element model based on the optimization algorithm, and constructing the main bridge based on the arch support information; Step S5, after the construction is completed, the finite element model is updated, load simulation is performed on the finite element model, load weak areas are obtained, and load early warning is performed for the load weak areas; As a preferred solution of the construction method of the inclined-stayed buckle-hanging cantilever cast reinforced concrete box-type arch bridge described in the present invention, wherein: The step S1 specifically includes the following steps: Step S101, obtaining arch bridge construction information, wherein the arch bridge construction information includes arch bridge construction process, arch bridge construction components and component installation positions, wherein the arch bridge construction components include arch bridge construction component names, arch bridge construction component numbers, arch bridge construction component sizes and arch bridge construction component installation methods; Step S102, establishing a BIM model according to the arch bridge construction information; As a preferred solution of the construction method of the inclined-stayed buckle-hanging cantilever cast reinforced concrete box-type arch bridge described in the present invention, wherein: The step S2 specifically includes the following steps: Step S201, obtaining environmental information, and obtaining installation coordinates of arch bridge components according to the environmental information and the BIM model, wherein the arch bridge components include approach bridge structure, arch seat, boundary pier, temporary buttress, pylon, cable suspension system and arch ring structure; Step S202, installing the approach bridge structure and the abutment according to the installation coordinates, wherein the approach bridge structure includes an approach bridge pile foundation, an approach bridge cap, an approach bridge pier and an approach bridge; Step S203, using a lifting mechanism to install the boundary pier and the temporary buttress according to the installation coordinates, and casting the arch ring segment between the arch seat and the temporary buttress, and using the lifting mechanism to install the buckle tower and the cable hanging system; Step S204, anchoring the first box-type arch ring segment by using a cable hanging system, obtaining a first anchoring cable force by a force sensor on the inclined cable, and collecting a first anchoring image by using a visual sensor, obtaining first arch ring anchoring information according to the first anchoring image by using preset feature points and image recognition technology, wherein the first arch ring anchoring information includes the first arch ring end coordinates, the first arch ring end height, and the first arch ring linear angle, and comparing the first arch ring anchoring information with the BIM model to obtain a first anchoring error; As a preferred solution of the construction method of the inclined-stayed buckle-hanging cantilever cast reinforced concrete box-type arch bridge described in the present invention, wherein: The step S3 specifically comprises the following steps: Step S301, establishing a finite element model according to the BIM model, and performing regional division on the arch ring segments to obtain arch ring segment regional numbers 001, 002, 003, ...; Step S302, obtaining a cable force-displacement function according to the first anchoring cable force and the first arch ring anchoring information, wherein the cable force-displacement function is used to describe the correlation between the cable force and the horizontal displacement of the first box-type arch ring segment, obtaining a cable force influence factor, and establishing a first cable force influence matrix according to the cable force influence factor, obtaining a first displacement influence matrix according to the cable force-displacement function and the first cable force influence matrix, and obtaining a second anchoring cable force according to the first displacement influence matrix, and anchoring the second box-type arch ring segment by the second anchoring cable force.

[0006] As a preferred solution of the construction method of the inclined-stayed buckle-hanging cantilever cast reinforced concrete box-type arch bridge described in the present invention, wherein: The step S4 specifically comprises the following steps: Step S401, repeating steps S2 to S3 until all the box-type arch ring segments are installed, the arch ring is closed, and the main arch ring is poured with concrete, and the BIM model is updated; Step S402, obtaining preset pillar information, wherein the preset pillar information includes the preset pillar quantity, preset pillar spacing and preset pillar position, obtaining the preset maximum load value using the finite element model according to the preset pillar information, and obtaining the pillar state space according to the preset pillar information , where n is the preset number of pillars, l is the preset pillar spacing, and p is the preset pillar position, obtaining a reward function and a penalty function of a pillar state space, adjusting the pillar state space, obtaining a penalty value of each pillar state space using the penalty function, obtaining a reward value of each pillar state space using the reward function, and defining the pillar state space with the largest reward value as the optimal pillar state space; Step S403, retrieving the optimal number of pillars, the optimal pillar spacing, and the optimal pillar position of the optimal pillar state space, and constructing the main bridge according to the optimal number of pillars, the optimal pillar spacing, and the optimal pillar position; As a preferred solution of the construction method of the inclined-stayed buckle-hanging cantilever cast reinforced concrete box-type arch bridge described in the present invention, wherein: The step S5 specifically comprises the following steps: Step S501, after the construction of the arch bridge is completed, the finite element model is updated, and the maximum load of the arch bridge is obtained by finite element analysis, and the simulation load value is set according to the maximum load of the arch bridge; Step S502, applying corresponding loads to the finite element model in sequence according to the simulated load values, obtaining the unit prestress of each unit, defining the unit whose unit prestress is greater than or equal to the unit load critical value as a load-weak unit, and defining the area where the load-weak unit is located as a load-weak area, obtaining the area number of the load-weak area, obtaining the area warning information of the load-weak area, the area warning information including the area number, the weak unit number and the unit load critical value, and performing load warning according to the area warning information; As a preferred solution of the construction method of the inclined-stayed buckle-hanging cantilever cast reinforced concrete box-type arch bridge described in the present invention, wherein: ; Among them, R is the reward value, is the first reward coefficient, is the second reward coefficient, is the actual number of pillars, To preset the number of pillars, is the actual maximum load value, is the preset maximum load value, is a real number greater than zero; As a preferred solution of the construction method of the inclined-stayed buckle-hanging cantilever cast reinforced concrete box-type arch bridge described in the present invention, wherein: ; Among them, P is the penalty value, is the penalty coefficient, is the actual maximum load value, is the preset maximum load value, is a real number greater than zero; As a preferred solution of the construction method of the inclined-stayed buckle-hanging cantilever cast reinforced concrete box-type arch bridge described in the present invention, wherein: The cable force influencing factors include temperature, wind speed, cable tube length, tensioning angle, cable length and arch ring segment installation angle.

[0007] Beneficial effects of the present invention: The present invention establishes a BIM model for the arch bridge construction process, and performs arch bridge construction based on the BIM model, which is conducive to real-time understanding of the construction progress and timely adjustment, refines the arch bridge construction process, improves construction efficiency, shortens the construction period and understands construction costs.

[0008] Using finite element analysis and cable force influence matrix to adjust the preset cable force is beneficial to ensure the consistency of the arch ring line shape of the arch bridge with the designed arch ring line shape, ensure the load-bearing capacity of the arch bridge, meet the preset force requirements of the arch bridge, and optimize the construction process.

[0009] The optimization algorithm is used to adjust the pillar information, the number of pillars, the pillar spacing and the pillar position, and the construction is carried out according to the optimized pillar information to improve the load-bearing capacity of the arch bridge and save the bridge pillar cost to a certain extent.

[0010] Finite element analysis is used to simulate the load of the arch bridge after construction, obtain the weak load areas, and issue load warnings for the weak load areas, which is conducive to a detailed understanding of the stress conditions of the arch bridge structure and prevention of dangerous bridge accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A schematic diagram of the basic process of a construction method for a cable-stayed, buckled, cantilever-cast reinforced concrete box-type arch bridge provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0012] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the drawings. It is obvious that the described embodiments are only part of the embodiments of the present invention, but not all of the embodiments.

[0013] Example, see Figure 1 , which is an embodiment of the present invention, provides a method for constructing a cantilever cast reinforced concrete box-type arch bridge by using a cable-stayed buckle, characterized in that it comprises the following steps: Step S1, obtaining arch bridge construction information, and establishing a BIM model according to the arch bridge construction information; Step S2, constructing the approach bridge structure, arch seat, boundary pier, temporary pier, buckle tower and cable hanging system according to the BIM model, anchoring the first box-type arch ring segment by using the cable hanging system, and obtaining the first anchoring cable force, collecting the first anchoring image by using the visual sensor on the tower, and obtaining the first anchoring error and the first arch ring anchoring information according to the first anchoring image; Step S3, establishing a finite element model for the BIM model, establishing a first cable force influence matrix according to the first anchor cable force and the first arch ring anchor information, obtaining the second anchor cable force through the first cable force influence matrix, and anchoring the second box-type arch ring segment by using the second anchor cable force; Step S4, repeating steps S2 to S3 until all the box-type arch ring segments are installed and the arch ring is closed, pouring concrete on the main arch ring, and determining the arch support information based on the finite element model based on the optimization algorithm, and constructing the main bridge based on the arch support information; Step S5, after the construction is completed, the finite element model is updated, load simulation is performed on the finite element model, load weak areas are obtained, and load warning is performed for the load weak areas.

[0014] In this implementation, a BIM model was established for the arch bridge construction process, and the arch bridge construction was carried out based on the BIM model, which is conducive to real-time understanding of the construction progress and timely adjustments, refinement of the arch bridge construction process, improvement of construction efficiency, shortening of construction period and understanding of construction costs.

[0015] Using finite element analysis and cable force influence matrix to adjust the preset cable force is beneficial to ensure the consistency of the arch ring line shape of the arch bridge with the designed arch ring line shape, ensure the load-bearing capacity of the arch bridge, meet the preset force requirements of the arch bridge, and optimize the construction process.

[0016] The optimization algorithm is used to adjust the pillar information, the number of pillars, the pillar spacing and the pillar position, and the construction is carried out according to the optimized pillar information to improve the load-bearing capacity of the arch bridge and save the bridge pillar cost to a certain extent.

[0017] Finite element analysis is used to simulate the load of the arch bridge after construction, obtain the weak load areas, and issue load warnings for the weak load areas, which is conducive to a detailed understanding of the stress conditions of the arch bridge structure and prevention of dangerous bridge accidents.

[0018] The step S1 specifically includes the following steps: Step S101, obtaining arch bridge construction information, wherein the arch bridge construction information includes arch bridge construction process, arch bridge construction components and component installation positions, wherein the arch bridge construction components include arch bridge construction component names, arch bridge construction component numbers, arch bridge construction component sizes and arch bridge construction component installation methods; Step S102: establishing a BIM model according to the arch bridge construction information.

[0019] In this embodiment, the BIM model is a building model established based on various relevant information data of the construction project.

[0020] In this embodiment, a BIM model is established for the arch bridge construction process, and the arch bridge construction is carried out based on the BIM model, which is conducive to real-time understanding of the construction progress and timely adjustment, refinement of the arch bridge construction process, improvement of construction efficiency, shortening of construction period and understanding of construction costs.

[0021] The step S2 specifically includes the following steps: Step S201, obtaining environmental information, and obtaining installation coordinates of arch bridge components according to the environmental information and the BIM model, wherein the arch bridge components include approach bridge structure, arch seat, boundary pier, temporary buttress, pylon, cable suspension system and arch ring structure; Step S202, installing the approach bridge structure and the abutment according to the installation coordinates, wherein the approach bridge structure includes an approach bridge pile foundation, an approach bridge cap, an approach bridge pier and an approach bridge; Step S203, using a lifting mechanism to install the boundary pier and the temporary buttress according to the installation coordinates, and casting the arch ring segment between the arch seat and the temporary buttress, and using the lifting mechanism to install the buckle tower and the cable hanging system; Step S204, using a cable hanger system to anchor the first box-type arch ring segment, obtaining the first anchoring cable force through the force sensor on the inclined cable, and using a visual sensor to capture a first anchoring image, and obtaining the first arch ring anchoring information based on the first anchoring image using preset feature points and image recognition technology. The first arch ring anchoring information includes the first arch ring end coordinates, the first arch ring end height and the first arch ring linear angle. The first arch ring anchoring information is compared with the BIM model to obtain the first anchoring error.

[0022] In this embodiment, image recognition technology is used to obtain the first arch ring anchoring information according to the first anchoring image, and the first anchoring difference is obtained according to the first arch ring anchoring information, providing accurate and detailed data support for establishing the first cable force influence matrix.

[0023] The step S3 specifically comprises the following steps: Step S301, establishing a finite element model according to the BIM model, and performing regional division on the arch ring segments to obtain arch ring segment regional numbers 001, 002, 003, ...; Step S302, obtaining a cable force-displacement function according to the first anchoring cable force and the first arch ring anchoring information, wherein the cable force-displacement function is used to describe the correlation between the cable force and the horizontal displacement of the first box-type arch ring segment, obtaining a cable force influence factor, and establishing a first cable force influence matrix according to the cable force influence factor, obtaining a first displacement influence matrix according to the cable force-displacement function and the first cable force influence matrix, and obtaining a second anchoring cable force according to the first displacement influence matrix, and anchoring the second box-type arch ring segment by the second anchoring cable force.

[0024] In this embodiment, the preset cable tension is adjusted using finite element analysis and cable tension influence matrix, which is beneficial to ensuring the consistency of the arch ring line shape of the arch bridge with the designed arch ring line shape, ensuring the load-bearing capacity of the arch bridge, meeting the preset force requirements of the arch bridge, and optimizing the construction process.

[0025] The step S4 specifically comprises the following steps: Step S401, repeating steps S2 to S3 until all the box-type arch ring segments are installed, the arch ring is closed, and the main arch ring is poured with concrete, and the BIM model is updated; Step S402, obtaining preset pillar information, wherein the preset pillar information includes the preset pillar quantity, preset pillar spacing and preset pillar position, obtaining the preset maximum load value using the finite element model according to the preset pillar information, and obtaining the pillar state space according to the preset pillar information , where n is the preset number of pillars, l is the preset pillar spacing, and p is the preset pillar position, obtaining a reward function and a penalty function of a pillar state space, adjusting the pillar state space, obtaining a penalty value of each pillar state space using the penalty function, obtaining a reward value of each pillar state space using the reward function, and defining the pillar state space with the largest reward value as the optimal pillar state space; Step S403, retrieve the optimal number of pillars, optimal pillar spacing and optimal pillar positions in the optimal pillar state space, and construct the main bridge according to the optimal number of pillars, the optimal pillar spacing and the optimal pillar positions.

[0026] In this embodiment, an optimization algorithm is used to adjust the pillar information, the number of pillars, the pillar spacing and the pillar position, and construction is performed according to the optimized pillar information to improve the load-bearing capacity of the arch bridge and save the bridge pillar cost to a certain extent.

[0027] The step S5 specifically comprises the following steps: Step S501, after the construction of the arch bridge is completed, the finite element model is updated, and the maximum load of the arch bridge is obtained by finite element analysis, and the simulation load value is set according to the maximum load of the arch bridge; Step S502, applying corresponding loads to the finite element model in sequence according to the simulated load values ​​to obtain the unit prestress of each unit, defining the unit whose unit prestress is greater than or equal to the unit load critical value as a load-weak unit, and defining the area where the load-weak unit is located as a load-weak area, obtaining the area number of the load-weak area, obtaining the area warning information of the load-weak area, the area warning information including the area number, the weak unit number and the unit load critical value, and performing a load warning according to the area warning information.

[0028] In this embodiment, finite element analysis is used to perform load simulation on the arch bridge after construction, to obtain load weak areas, and load warning is performed for the load weak areas, which is conducive to a detailed understanding of the stress condition of the arch bridge structure and prevention of dangerous bridge accidents.

[0029] The calculation expression of the reward function is as follows: ; Among them, R is the reward value, is the first reward coefficient, is the second reward coefficient, is the actual number of pillars, To preset the number of pillars, is the actual maximum load value, is the preset maximum load value, is a real number greater than zero.

[0030] In this embodiment, a reward function is set and the reward value of each pillar state space is obtained by using the reward function, so as to provide a data basis for adjusting the pillar state space and obtaining the optimal state space.

[0031] The calculation expression of the penalty function is as follows: ; Among them, P is the penalty value, is the penalty coefficient, is the actual maximum load value, is the preset maximum load value, is a real number greater than zero.

[0032] In this embodiment, a penalty function is set and the penalty value of each pillar state space is obtained by using the penalty function, so as to provide a data basis for adjusting the pillar state space and obtaining the optimal state space.

[0033] The cable force influencing factors include temperature, wind speed, cable tube length, tensioning angle, cable length and arch ring segment installation angle.

[0034] In this embodiment, the cable force influence factor is obtained to provide detailed influence factors for establishing the first cable force influence matrix, thereby ensuring the integrity of the first cable force influence matrix and the accuracy of the preset second anchor cable force.

[0035] In this implementation, a BIM model was established for the arch bridge construction process, and the arch bridge construction was carried out based on the BIM model, which is conducive to real-time understanding of the construction progress and timely adjustments, refinement of the arch bridge construction process, improvement of construction efficiency, shortening of construction period and understanding of construction costs.

[0036] Using finite element analysis and cable force influence matrix to adjust the preset cable force is beneficial to ensure the consistency of the arch ring line shape of the arch bridge with the designed arch ring line shape, ensure the load-bearing capacity of the arch bridge, meet the preset force requirements of the arch bridge, and optimize the construction process.

[0037] The optimization algorithm is used to adjust the pillar information, the number of pillars, the pillar spacing and the pillar position, and the construction is carried out according to the optimized pillar information to improve the load-bearing capacity of the arch bridge and save the bridge pillar cost to a certain extent.

[0038] Finite element analysis is used to simulate the load of the arch bridge after construction, obtain the weak load areas, and issue load warnings for the weak load areas, which is conducive to a detailed understanding of the stress conditions of the arch bridge structure and prevention of dangerous bridge accidents.

[0039] It should be understood by those skilled in the art that the embodiments of the present invention may be provided as methods, systems or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment or an embodiment combining software and hardware aspects. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media containing computer-usable program codes. Among them, the storage medium may be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (Static Random Access Memory, referred to as SRAM), electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, referred to as EEPROM), erasable programmable read-only memory (Erasable Programmable Read Only Memory, referred to as EPROM), programmable read-only memory (Programmable Red-Only Memory, referred to as PROM), read-only memory (Read-Only Memory, referred to as ROM), magnetic memory, flash memory, magnetic disk or optical disk. These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A construction method for a cantilever cast reinforced concrete box arch bridge, characterized in that: The following steps are involved: Step S1, obtaining arch bridge construction information, and establishing a BIM model according to the arch bridge construction information; Step S2, constructing the approach bridge structure, arch seat, boundary pier, temporary pier, buckle tower and cable hanging system according to the BIM model, anchoring the first box-type arch ring segment by using the cable hanging system, and obtaining the first anchoring cable force, collecting the first anchoring image by using the visual sensor on the tower, and obtaining the first anchoring error and the first arch ring anchoring information according to the first anchoring image; Step S3, establishing a finite element model for the BIM model, establishing a first cable force influence matrix according to the first anchor cable force and the first arch ring anchor information, obtaining the second anchor cable force through the first cable force influence matrix, and anchoring the second box-type arch ring segment with the second anchor cable force; Step S4, repeating steps S2 to S3 until all the box-type arch ring segments are installed and the arch ring is closed, pouring concrete on the main arch ring, and determining the arch support information based on the finite element model based on the optimization algorithm, and constructing the main bridge based on the arch support information; Step S5, after the construction is completed, the finite element model is updated, load simulation is performed on the finite element model, load weak areas are obtained, and load early warning is performed for the load weak areas; The step S2 specifically includes the following steps: Step S201, obtaining environmental information, and obtaining installation coordinates of arch bridge components according to the environmental information and the BIM model, wherein the arch bridge components include approach bridge structure, arch seat, boundary pier, temporary buttress, buckle tower, cable suspension system and arch ring structure; Step S202, installing the approach bridge structure and the abutment according to the installation coordinates, wherein the approach bridge structure includes an approach bridge pile foundation, an approach bridge cap, an approach bridge pier and an approach bridge; Step S203, using a lifting mechanism to install the boundary pier and the temporary buttress according to the installation coordinates, and casting the arch ring segment between the arch seat and the temporary buttress, and using the lifting mechanism to install the buckle tower and the cable hanging system; Step S204, using a cable hanger system to anchor the first box-type arch ring segment, obtaining the first anchoring cable force through the force sensor on the inclined cable, and using a visual sensor to capture a first anchoring image, and obtaining the first arch ring anchoring information based on the first anchoring image using preset feature points and image recognition technology. The first arch ring anchoring information includes the first arch ring end coordinates, the first arch ring end height and the first arch ring linear angle. The first arch ring anchoring information is compared with the BIM model to obtain the first anchoring error.

2. The method for constructing a cantilever cast reinforced concrete box arch bridge by inclined stay buckle hanging according to claim 1, characterized in that: The step S1 specifically includes the following steps: Step S101, obtaining arch bridge construction information, wherein the arch bridge construction information includes arch bridge construction process, arch bridge construction components and component installation positions, wherein the arch bridge construction components include arch bridge construction component names, arch bridge construction component numbers, arch bridge construction component sizes and arch bridge construction component installation methods; Step S102: establishing a BIM model according to the arch bridge construction information.

3. The construction method of a cantilever cast reinforced concrete box arch bridge according to claim 1, characterized in that: The step S3 specifically comprises the following steps: Step S301, establishing a finite element model according to the BIM model, and performing regional division on the arch ring segments to obtain arch ring segment regional numbers 001, 002, 003, ...; Step S302, obtaining a cable force-displacement function according to the first anchoring cable force and the first arch ring anchoring information, wherein the cable force-displacement function is used to describe the correlation between the cable force and the horizontal displacement of the first box-type arch ring segment, obtaining a cable force influence factor, and establishing a first cable force influence matrix according to the cable force influence factor, obtaining a first displacement influence matrix according to the cable force-displacement function and the first cable force influence matrix, and obtaining a second anchoring cable force according to the first displacement influence matrix, and anchoring the second box-type arch ring segment by the second anchoring cable force.

4. The method for constructing a cantilever cast reinforced concrete box arch bridge by inclined-stayed buckle hanging according to claim 1, characterized in that: The step S4 specifically comprises the following steps: Step S401, repeating steps S2 to S3 until all the box-type arch ring segments are installed, the arch ring is closed, and the main arch ring is poured with concrete, and the BIM model is updated; Step S402, obtaining preset pillar information, wherein the preset pillar information includes the preset pillar quantity, preset pillar spacing and preset pillar position, obtaining the preset maximum load value using the finite element model according to the preset pillar information, and obtaining the pillar state space according to the preset pillar information , where n is the preset number of pillars, l is the preset pillar spacing, and p is the preset pillar position, obtaining a reward function and a penalty function of a pillar state space, adjusting the pillar state space, obtaining a penalty value of each pillar state space using the penalty function, obtaining a reward value of each pillar state space using the reward function, and defining the pillar state space with the largest reward value as the optimal pillar state space; Step S403, retrieve the optimal number of pillars, optimal pillar spacing and optimal pillar positions in the optimal pillar state space, and construct the main bridge according to the optimal number of pillars, the optimal pillar spacing and the optimal pillar positions.

5. The method for constructing a cantilever cast reinforced concrete box arch bridge by inclined-stayed buckle hanging according to claim 1, characterized in that: The step S5 specifically comprises the following steps: Step S501, after the construction of the arch bridge is completed, the finite element model is updated, and the maximum load of the arch bridge is obtained by finite element analysis, and the simulation load value is set according to the maximum load of the arch bridge; Step S502, applying corresponding loads to the finite element model in sequence according to the simulated load values ​​to obtain the unit prestress of each unit, defining the unit whose unit prestress is greater than or equal to the unit load critical value as a load-weak unit, and defining the area where the load-weak unit is located as a load-weak area, obtaining the area number of the load-weak area, obtaining the area warning information of the load-weak area, the area warning information including the area number, the weak unit number and the unit load critical value, and performing a load warning according to the area warning information.

6. The method for constructing a cantilever cast reinforced concrete box arch bridge by inclined stay buckle hanging as claimed in claim 4, characterized in that: The calculation expression of the reward function is as follows: ； Among them, R is the reward value, is the first reward coefficient, is the second reward coefficient, is the actual number of pillars, To preset the number of pillars, is the actual maximum load value, is the preset maximum load value, is a real number greater than zero.

7. The method for constructing a cantilever cast reinforced concrete box arch bridge by inclined stay buckle hanging as claimed in claim 4, characterized in that: The calculation expression of the penalty function is as follows: ； Among them, P is the penalty value, is the penalty coefficient, is the actual maximum load value, is the preset maximum load value, is a real number greater than zero.

8. The method for constructing a cantilever cast reinforced concrete box arch bridge by inclined stay buckle hanging as claimed in claim 3, characterized in that: The cable force influencing factors include temperature, wind speed, cable tube length, tensioning angle, cable length and arch ring segment installation angle.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the method for constructing a cable-stayed, cantilever-cast reinforced concrete box-type arch bridge described in any one of claims 1 to 8 is implemented.

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