CN115659470A - Assembling method, system and application of prefabricated assembled bridge based on BIM concrete segments - Google Patents
Assembling method, system and application of prefabricated assembled bridge based on BIM concrete segments Download PDFInfo
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Abstract
The invention belongs to the technical field of component prefabrication data identification, and discloses an assembling method, system and application of a prefabricated assembled bridge based on a BIM concrete segment. The method comprises the steps of performing three-dimensional laser scanning on an approaching prefabricated section beam through a three-dimensional laser scanner to obtain single-body point cloud data of the section beam, and converting the point cloud data into a BIM (building information modeling); checking whether the obtained accurate component error meets the assembly requirement; unifying coordinates of a BIM design model of the next section of beam and an entity point cloud model obtained by the constructed section of beam in software, and simulating pre-assembly; checking whether the abutted seams can be fitted; and assembling construction of the section beam which can be fitted. The invention realizes the application of the three-dimensional laser scanning and BIM technology in improving the assembling precision of the prefabricated section beam. And the construction method has high efficiency.
Description
Technical Field
The invention belongs to the technical field of component prefabrication data identification, and particularly relates to an assembling method, system and application of a prefabricated assembled bridge based on a BIM concrete segment.
Background
The prefabricated section assembling process is a construction process that the whole beam body of the bridge is divided into a plurality of sections, the sections are prefabricated and processed in a factory and then transported to a construction site, and the sections are integrally assembled into the bridge by applying prestress. Compared with the traditional cast-in-place structure, the prefabricated segmental beam is prefabricated in a factory, so that the on-site assembling precision requirement is very high. If the production or construction can not meet the precision requirement, the appearance of the sectional beam can not meet the aesthetic requirement, and even the quality and the safety of the sectional beam are affected. Therefore, the mass of the prefabricated segmental beam is the important weight to be controlled before construction. The three-dimensional laser scanning technology has the characteristics of high precision and high sampling speed, can quickly and highly accurately reconstruct a scanning object to obtain original surveying and mapping data, can directly carry out quick reverse three-dimensional data acquisition and model reconstruction from a structure, and embodies a three-dimensional model after actual construction. The BIM technology has the characteristics of high three-dimensional visualization and strong information integration capability, and the BIM model is subjected to three-dimensional modeling through a design drawing and embodies that a three-dimensional model is designed. Under the technical background, in the construction process of prefabricating and assembling the segmental beam, the quality of the segmental beam is controlled and the assembling precision is improved by combining a three-dimensional laser scanning technology and a BIM technology.
The total length of a certain east-west tetracyclic project route is about 17.8km. The project construction mark segment is k26+300-k32+880.604, and the total length is 5740.604m. The main construction structure is as follows: ground trunks, highways, side roads, and the like. Along the line, there are golden city overpass 1, hongbaolu tunnel 1, main bridge 3 and pedestrian overpass 2. A bidirectional 10 lane is used. The Jincheng overpass is positioned at the main line pile number K27+000, and the number of segment beams is 462 in total; the new road bridge is positioned at the main line pile number K30+400, and the number of the segment beams is 416 (wherein the number of the segment beams is 240 in the standard segment and 176 in the variable segment).
Although the processing precision of the components can be greatly improved by the factory prefabrication of the bridge sections, the prefabricated sections of the bridge and the design size have certain deviation due to the characteristics of large discreteness of the characteristics of concrete materials and uneven shrinkage creep control, particularly the characteristics of transverse prestress of the prefabricated sections of the engineering, and the like, thereby influencing the line shape of the bridge from the source.
Through the above analysis, the problems and defects of the prior art are as follows:
(1) The splicing construction method in the prior art has low working efficiency and high material cost, and can not effectively ensure the construction quality.
(2) The prior art has poor safety in the splicing construction method.
Disclosure of Invention
In order to overcome the problems in the related art, the disclosed embodiment of the invention provides an assembling method, an assembling system and an application of a prefabricated assembled bridge based on BIM concrete segments.
The technical scheme is as follows: the assembling method of the prefabricated assembled bridge based on the BIM concrete segments comprises the following steps:
s1, performing three-dimensional laser scanning on an approaching prefabricated section beam through a three-dimensional laser scanner to obtain section beam monomer point cloud data, and converting the point cloud data into a BIM (building information modeling);
s2, checking whether the obtained accurate component error meets the splicing requirement or not;
s3, unifying coordinates of the BIM design model of the next section of beam and the entity point cloud model obtained by the constructed section of beam in software, simulating pre-assembly, and checking whether the abutted seam can be fitted;
and S4, assembling construction of the section beam which can be fitted.
In step S1, the point cloud data of the segment beam monomer is obtained by field data acquisition and field data processing.
In step S1, the actual entity model is obtained through modeling software after being converted into the BIM model.
In step S2, obtaining an accurate component error includes: and carrying out coordinate system unification and one-key three-dimensional detection on the obtained BIM model, recording measurement comparison deviation results in real time, carrying out actual deviation numerical value extraction on a plurality of slices, carrying out data comparison analysis to obtain a design and actual entity model comparison analysis report, checking whether the appearance geometric dimension of the segmental beam meets the deviation requirement of design and specification, and checking the prefabrication machining precision.
In step S3, three-dimensional laser scanning is performed on the constructed segment beam to obtain an entity point cloud model and perform reverse modeling.
Another object of the present invention is to provide a system for implementing the assembling method of the prefabricated assembled bridge based on BIM concrete segments, the assembling system of the prefabricated assembled bridge based on BIM concrete segments comprising:
the three-dimensional laser scanner is used for carrying out three-dimensional laser scanning on the prefabricated section beam entering the field to obtain single-body point cloud data of the section beam, and then converting the point cloud data into a BIM (building information modeling);
and (5) checking a terminal to check whether the obtained accurate component error meets the splicing requirement or not and to check whether the splicing seam can be fitted or not.
Another object of the present invention is to provide a computer device, characterized in that the computer device comprises a memory and a processor, the memory stores a computer program, and the computer program, when executed by the processor, causes the processor to execute the assembling method for prefabricating an assembled bridge based on BIM concrete segments.
Another object of the present invention is to provide a computer readable storage medium storing a computer program, wherein the computer program, when executed by a processor, causes the processor to execute the assembling method for prefabricating and assembling a bridge based on BIM concrete segments.
Another object of the present invention is to provide an information data processing terminal, wherein the information data processing terminal is configured to provide a user input interface to implement the assembling method for prefabricating and assembling a bridge based on BIM concrete segments when implemented on an electronic device.
The invention also aims to provide an application of the assembling method for prefabricating and assembling the bridge based on the BIM concrete segments in large bridge construction.
By combining all the technical schemes, the invention has the advantages and positive effects that:
first, aiming at the technical problems existing in the prior art and the difficulty in solving the problems, the technical problems to be solved by the technical scheme of the present invention are closely combined with results, data and the like in the research and development process, and how to solve the technical scheme of the present invention is deeply analyzed in detail, and some creative technical effects brought by the solution of the problems are specifically described as follows: the three-dimensional laser scanning technology provided by the invention can be used for carrying out three-dimensional scanning and model reconstruction on the prefabricated section beam transported to a construction site, determining the structural geometric dimension of the prefabricated section beam and inspecting the prefabrication quality of the section beam. Meanwhile, the field entity segment beam can be quickly converted into an entity BIM model and rechecked with a design BIM model, and the entity model and the design are contrasted and analyzed.
Secondly, regarding the technical solution as a whole or from the perspective of products, the technical effects and advantages of the technical solution to be protected by the present invention are specifically described as follows: the concept of prefabricated components is already applied to the field of infrastructure construction, and the mode can improve the working efficiency, save the material cost and ensure the construction quality for the construction stage. The construction is carried out by adopting a component prefabricating mode, and the quality and the precision of the prefabricated components are particularly important to control. The splicing construction method has high working efficiency and low material cost, and effectively ensures the construction quality. The splicing construction method has good safety.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a flow chart of an assembling method of a prefabricated assembled bridge based on BIM concrete segments according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.
1. Illustrative examples are illustrated:
as shown in fig. 1, an assembling method for a prefabricated assembled bridge based on BIM concrete segments provided by the embodiments of the present invention includes:
s101, performing three-dimensional laser scanning on an approaching prefabricated section beam through a three-dimensional laser scanner to obtain single-body point cloud data of the section beam, and converting the point cloud data into a BIM (building information modeling);
s102, checking whether the obtained accurate component error meets the assembly requirement;
s103, unifying coordinates of a BIM design model of the next section of beam and an entity point cloud model obtained by the constructed section of beam in software, and simulating pre-assembly; checking whether the abutted seams can be fitted or not;
and S104, assembling and constructing the section beam which can be fitted.
As a preferred embodiment, in step S101, the segment beam monomer point cloud data is obtained through field data acquisition and field data processing.
As a preferred embodiment, the actual entity model is obtained through modeling software after being converted into the BIM model in step S101.
Obtaining accurate component errors at step S102 as a preferred embodiment includes:
and carrying out coordinate system unification and one-key three-dimensional detection on the obtained BIM model, recording measurement comparison deviation results in real time, carrying out actual deviation numerical value extraction on a plurality of slices, carrying out data comparison analysis to obtain a design and actual entity model comparison analysis report, checking whether the appearance geometric dimension of the segmental beam meets the deviation requirement of design and specification, and checking the prefabrication machining precision.
As a preferred embodiment, in step S103, three-dimensional laser scanning is performed on the constructed segment beam to obtain a solid point cloud model and perform inverse modeling.
The embodiment of the invention also provides an assembling system for prefabricating and assembling a bridge based on the BIM concrete segments, which comprises the following steps:
the three-dimensional laser scanner is used for carrying out three-dimensional laser scanning on the prefabricated section beam entering the field to obtain single point cloud data of the section beam and converting the point cloud data into a BIM (building information modeling); checking whether the obtained accurate component error meets the splicing requirement or not; unifying coordinates of a BIM design model of the next section of beam and an entity point cloud model obtained by the constructed section of beam in software, and simulating pre-assembly; and checking whether the abutted seam can be fitted.
The invention will be further described below in connection with the principles of the assembly method of prefabricated assembled bridges based on BIM concrete segments.
The principle of the assembling method for the prefabricated assembled bridge based on the BIM concrete segments provided by the embodiment of the invention comprises the following steps:
s1, scanning the section beams to be assembled after machining and converting the section beams into models to obtain accurate component errors;
s2, combining the point cloud model with the BIM model to perform segment beam simulation pre-assembly;
and S3, detecting the line shape and the assembly precision of the bridge by using a three-dimensional laser scanning technology.
In one embodiment, in step S1, scanning and converting the segment beam to be assembled after finishing the processing into the model includes: performing three-dimensional laser scanning on an approaching prefabricated section beam through a three-dimensional laser scanner, acquiring field data and processing field data to obtain single point cloud data of the section beam, converting the point cloud data into a BIM (building information modeling) model, and obtaining an actual entity model through modeling software;
in a preferred embodiment, in step S1, obtaining the accurate component error comprises:
and carrying out coordinate system unification and one-key three-dimensional detection on the obtained BIM model, recording measurement comparison deviation results in real time, carrying out actual deviation numerical value extraction on a plurality of slices, carrying out data comparison analysis to obtain a design and actual entity model comparison analysis report, checking whether the appearance geometric dimension of the segmental beam meets the deviation requirement of design and specification, and checking the prefabrication machining precision.
In a preferred embodiment, in the step S2 of performing the segment beam simulation pre-assembly by combining the point cloud model with the BIM model, the method includes:
carrying out three-dimensional laser scanning on the constructed section beam to obtain an entity point cloud model and carrying out reverse modeling;
unifying coordinates of a BIM design model of the next section of beam and an entity point cloud model obtained by the constructed section of beam in software, and simulating pre-assembly; and checking whether the abutted seam can be fitted.
In a preferred embodiment, in the step S2 of performing the segment beam simulation pre-assembly by combining the point cloud model with the BIM model, the method further includes:
performing deviation analysis according to the pre-assembled model, providing corresponding control or compensation measures according to the analysis result, and setting the pre-camber and the support alignment of the bracket; meanwhile, according to the monitoring result of the construction site on the bridge line type and the support system, the actually occurring line type deviation is analyzed to cause the influence factor of the line type deviation.
In a preferred embodiment, in the step S3, in the detection of the alignment and assembly precision of the bridge by using the three-dimensional laser scanning technology, the assembled and erected two-span segmental beam is selected to perform three-dimensional laser scanning and perform bridge linear measurement in combination with the BIM model, and the assembly precision is verified.
Example 2
The BIM (Building Information Model) technology is a data Model based on integration of various related Information in a three-dimensional digital engineering project. The application of the BIM technology in quality management mainly comprises drawing verification, optimal design, three-dimensional visual background intersection and the like.
According to the BIM standard of the company bridge, when the three-dimensional modeling is carried out on the structure, the depth of the model is required to meet the BIM application requirement of a project, and different depths are corresponding to different stages. The method carries out three-dimensional modeling on the golden city overpass structure, and ensures that the bridge is linear and the model precision is not deviated from the drawing. And related engineering information such as elevation point coordinates, engineering quantity and the like can be extracted through the model.
The three-dimensional laser scanning technology is also called as a real scene replication technology, and obtains spatial three-dimensional coordinate information of a measured object by using a laser beam and a laser signal reflected by the measured object. Compared with the traditional single-point distributed measurement method, the technology adopts a continuous integral data acquisition mode, avoids the introduction of human errors and time errors, is suitable for any complex field environment and objects in an automatic acquisition mode, and obtains point cloud data through scanning, thereby being capable of rapidly reconstructing a three-dimensional model. The point cloud data can be imported into BIM software such as Sketchup, civil3D, revit and the like for subsequent engineering design. At present, three-dimensional laser scanning is mainly applied to surveying and mapping engineering, industrial measurement, cultural relic protection, ancient architecture transformation, natural disaster investigation and the like.
Trimble TX5 is selected for three-dimensional laser scanning, and the parameters of a scanner are as follows: the measuring speed is up to 976000 points per second, and the measuring range is 130 meters.
Trimble TX5 three-dimensional laser scanning is light, small and convenient to carry, the size is only 240x200x100 mm, the weight is only 5.2 kg, data are stored on an SD card, and the data can be conveniently and safely transmitted to a computer. The data is processed and registered with SCENE software and can be seamlessly imported onto the Tianbao RealWorks software to produce a final outcome, such as a test result, a measurement result, or a three-dimensional model. The data can also be transmitted to a three-dimensional CAD software package and provided to third-party design software. The operation can be clearly and simply carried out through a simple touch screen interface of Trimble TX 5. The steps required for setting scanning parameters, managing items and scanning are intuitive and easy to learn. This greatly reduces the time required for high efficiency.
In the application of three-dimensional laser scanning technology, the method comprises the following steps:
(1) Point cloud data collection
And (3) carrying out three-dimensional scanning on the single-piece section beam which is prefabricated by a factory and transported to the site through a Trimble TX5 three-dimensional laser scanner. And (3) finishing subsequent data splicing and preprocessing in a mode of sticking targets for any standing mode, wherein the monomer structure scans 24 stations in total and takes 6 hours.
The instrument rapidly scans the sectional beams by emitting laser pulses, transmits and receives spatial information of the sectional beams by a slow reflection principle, and carries out real point cloud of an object through an internal operation stroke, wherein the point cloud information contains and retains coordinate information, RGB (red, green and blue) and gray values of the object.
(2) Point cloud data preprocessing
And carrying out data splicing, data elimination, data simplification, denoising and other processing on the point cloud data through professional Trimble RealWorks interior processing software.
Data splicing: due to the large volume of the segmental beam body, the scanning cannot be completed at one time. And scanning of different measuring stations is required for multiple times, and data of each measuring station are in different coordinate systems, so that coordinates need to be unified and data splicing is carried out.
Data elimination: scanning data outside the single segment beam is invalid data and needs to be deleted, and the process of deleting the invalid data is called data elimination.
Data simplification: since the point cloud data is huge, data reduction processing is required without affecting accuracy, which is called data reduction.
Denoising: the inevitable noise spots are caused by environmental factors such as reflection of dust in the air. The removal of these inevitable noise points by software is called denoising.
Furthermore, BIM inverse modeling includes:
the point cloud data is imported into Revit modeling software for three-dimensional reverse modeling, revit supports import of multiple point cloud data formats, rcs formats of the segment beam point cloud data after field processing are exported in RealWorks, and then the point cloud file is imported into Revit software. And (4) slicing in Revit to obtain plane contour lines of the segment beam, such as horizontal, vertical and section, and creating a BIM (building information modeling) model of the solid segment beam.
The assembling method (the application of the three-dimensional laser scanning and BIM technology in improving the assembling precision of the precast segmental beam) based on the BIM concrete segmental precast assembled bridge provided by the embodiment of the invention comprises the following steps:
1. and detecting the entrance quality of the prefabricated section beam.
The three-dimensional laser scanning technology can be used for accurately scanning the prefabricated sections transported to a construction site, determining the structural size of the prefabricated sections, checking the prefabricated quality of components, and creating a bridge BIM model according to the structural size, so that engineering management is facilitated.
The method comprises the steps of carrying out three-dimensional laser scanning on an approaching prefabricated section beam through a three-dimensional laser scanner, acquiring field data and processing field data to obtain section beam monomer point cloud data, converting the point cloud data into a BIM model, and obtaining the BIM through modeling software together with a design drawing.
The model carries out coordinate system unified, one-key three-dimensional detection, measurement and comparison deviation results are recorded in real time, a plurality of slices are subjected to actual deviation numerical value extraction, data comparison analysis is carried out, a design and actual model comparison analysis report is obtained, whether the external geometric dimension of the section beam meets the deviation requirement of design and specification is checked, the prefabrication machining precision of the section beam is checked, and the section beam assembling precision is guaranteed to be improved.
Through three-dimensional laser scanning and comparative analysis of four different segment beam monomers on site, the three-dimensional point cloud of an actual segment beam is compared and analyzed with a designed BIM model, the deviation value of the final result is maximally 1mm, the surface of concrete is smooth, no honeycomb pitted surface exists, the quality is good, as actually produced objects have more structural objects than the BIM model, the structural bodies are not used for deviation calculation, the results meet the requirements of design and standard deviation, and the quality of the prefabricated segment beam is good.
2. Point cloud model and BIM model combined segment beam simulation pre-assembly
Besides the stage prefabrication precision, factors influencing the assembling precision in the assembling process of the bridge sections are more complicated. Firstly, the prefabricated segment is long in age, the zero block and the wet joint are cast in situ, the prefabricated segment has large age difference with the prefabricated segment, and the concrete shrinkage and creep are inconsistent; longitudinal prestress tensioning will cause deformation of the structure; the settlement of the foundation and the deformation of the lower support can also influence the assembly line shape, and both influence the assembly precision of the next segmental beam.
Before the No. 1 block section beam is assembled, three-dimensional laser scanning is carried out on the constructed zero block to obtain an entity point cloud model and reverse modeling is carried out. And (3) unifying the BIM design model of the No. 1 block and the zero block entity model in the revit software, and simulating pre-assembly. And (5) checking whether the 1 st block and the 0 th block can be fitted or not.
And performing deviation analysis according to the pre-assembled model, providing corresponding control or compensation measures according to an analysis result, setting the pre-camber of the support, positioning the support and the like. Meanwhile, according to the monitoring result of the construction site on the bridge line type and the support system, the actually occurring line type deviation is also analyzed, and the influence factors causing the line type deviation are searched.
3. Bridge alignment and assembly precision detection by three-dimensional laser scanning technology
Precision control and linear control in the assembling process of the sectional beams are the most critical and difficult links in the construction process and determine success or failure of engineering construction. The assembling process is that on the basis of accurate prefabrication and simulated pre-assembling of the segments, reasonable hoisting and attitude adjusting technologies are adopted to enable the segments to be temporarily positioned and mutually accurately matched and connected, and the three-dimensional laser scanning and the BIM model are combined to carry out accurate and rapid assembling in cooperation with a segment prefabrication support assembling construction scheme.
The three-dimensional laser scanning technology can be used for scanning the prefabricated sections and the whole bridge structure, determining the bridge line shape, checking the construction and assembly precision, and accordingly, the obtained BIM model can also be a reference information model for later-stage bridge management and maintenance. In addition, the three-dimensional laser scanning technology can be adopted to carry out linear measurement in the construction process.
The invention selects the assembled and erected two-span section beam to carry out three-dimensional laser scanning and combines with a BIM model to carry out bridge linear measurement, and verifies the assembling precision.
In any case. The three-dimensional laser scanning technology is applied to the simulated pre-assembly of the prefabricated section beam, and the problems of small information acquisition amount, single comparison method, low measurement precision, large workload and the like of the conventional simulated pre-assembly data are solved; compared with the solid pre-assembly of the sectional beams, the method has more outstanding advantages in the aspects of saving time, labor and using mechanical equipment.
The invention organically combines three-dimensional laser scanning and BIM technology to improve the prefabrication and assembly precision of the east four-ring project section beam in a certain city, and solves the problems of field quality detection of section beam entrance, bridge linear measurement, assembly precision verification and the like. With the increasing of extra-large projects in the future, the three-dimensional laser scanning technology combined with the BIM technology is applied more and more in engineering quality management and plays a greater role in improving project construction management level.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
For the information interaction, execution process and other contents between the above-mentioned devices/units, because the embodiments of the method of the present invention are based on the same concept, the specific functions and technical effects thereof can be referred to the method embodiments specifically, and are not described herein again.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention. For the specific working processes of the units and modules in the system, reference may be made to the corresponding processes in the foregoing method embodiments, which are not described herein again.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, and any modification, equivalent replacement, and improvement made by those skilled in the art within the technical scope of the present invention disclosed herein, which is within the spirit and principle of the present invention, should be covered by the present invention.
Claims (10)
1. A method for assembling a prefabricated assembled bridge based on BIM concrete segments is characterized by comprising the following steps:
s1, performing three-dimensional laser scanning on an approaching prefabricated section beam through a three-dimensional laser scanner to obtain single-body point cloud data of the section beam, and converting the point cloud data into a BIM (building information modeling);
s2, checking whether the obtained accurate component error meets the splicing requirement or not;
s3, unifying coordinates of the BIM design model of the next section of beam and the entity point cloud model obtained by the constructed section of beam in software, simulating pre-assembly, and checking whether the abutted seam can be fitted;
and S4, assembling construction of the section beam which can be fitted.
2. The assembling method of the BIM-based concrete section precast assembled bridge, according to the claim 1, is characterized in that in the step S1, the section beam monomer point cloud data is obtained through field data acquisition and field data processing.
3. The assembling method of the prefabricated assembled bridge based on the BIM concrete segments as claimed in claim 1, wherein in step S1, the actual entity model is obtained through modeling software after being converted into the BIM model.
4. The assembling method for the BIM concrete segment-based precast assembled bridge according to claim 1, wherein in the step S2, obtaining the accurate member error comprises:
the method comprises the steps of carrying out coordinate system unified and one-click three-dimensional detection on the obtained BIM model, recording measurement contrast deviation results in real time, carrying out actual deviation numerical value extraction on a plurality of slices, carrying out data comparison analysis to obtain a design and actual entity model comparison analysis report, checking whether the geometric dimension of the section beam meets the deviation requirement of the design and the specification, and checking the prefabrication machining precision.
5. The assembling method of the BIM concrete segment-based precast assembled bridge according to claim 1, wherein in step S3, the constructed segment beam is subjected to three-dimensional laser scanning to obtain a solid point cloud model and subjected to reverse modeling.
6. A system for implementing the assembling method of the prefabricated assembled bridge based on the BIM concrete segments as claimed in any one of claims 1 to 5, wherein the assembling system of the prefabricated assembled bridge based on the BIM concrete segments comprises:
the three-dimensional laser scanner is used for carrying out three-dimensional laser scanning on the prefabricated section beam entering the field to obtain single-body point cloud data of the section beam, and then converting the point cloud data into a BIM (building information modeling);
and (5) checking a terminal to check whether the obtained accurate component error meets the splicing requirement or not and to check whether the splicing seam can be fitted or not.
7. A computer device, comprising a memory and a processor, wherein the memory stores a computer program which, when executed by the processor, causes the processor to perform the method of assembling a prefabricated assembled bridge based on BIM concrete segments as claimed in any one of claims 1 to 5.
8. A computer-readable storage medium, storing a computer program, which, when executed by a processor, causes the processor to perform the method of assembling a prefabricated assembled bridge based on BIM concrete segments as claimed in any one of claims 1 to 5.
9. An information data processing terminal, wherein the information data processing terminal is configured to provide a user input interface to implement the assembling method of the prefabricated assembled bridge based on the BIM concrete segments according to any one of claims 1 to 5 when the information data processing terminal is executed on an electronic device.
10. Application of the assembling method of the prefabricated assembled bridge based on the BIM concrete segments according to any one of claims 1 to 5 in large bridge construction.
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