CN112417564B - Segment beam prefabrication construction monitoring method based on three-dimensional laser scanning and BIM technology - Google Patents
Segment beam prefabrication construction monitoring method based on three-dimensional laser scanning and BIM technology Download PDFInfo
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- CN112417564B CN112417564B CN202011319373.7A CN202011319373A CN112417564B CN 112417564 B CN112417564 B CN 112417564B CN 202011319373 A CN202011319373 A CN 202011319373A CN 112417564 B CN112417564 B CN 112417564B
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- 238000010276 construction Methods 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000012544 monitoring process Methods 0.000 title claims abstract description 25
- 238000009417 prefabrication Methods 0.000 title claims abstract description 18
- 238000005516 engineering process Methods 0.000 title claims abstract description 17
- 238000004873 anchoring Methods 0.000 claims abstract description 14
- 238000013499 data model Methods 0.000 claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 238000013461 design Methods 0.000 claims description 6
- 238000012805 post-processing Methods 0.000 claims description 3
- 238000009877 rendering Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 6
- 238000009825 accumulation Methods 0.000 abstract 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/13—Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
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- G06T2200/08—Indexing scheme for image data processing or generation, in general involving all processing steps from image acquisition to 3D model generation
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Abstract
The invention discloses a segment beam prefabrication construction monitoring method based on three-dimensional laser scanning and BIM technology, which comprises the following specific steps: and establishing a point cloud data model through three-dimensional laser scanning, establishing a Building Information (BIM) model, comparing the point cloud data model with the BIM model, verifying construction precision, and adjusting the manufacturing size of the next adjacent section beam according to the construction precision. The invention applies the three-dimensional laser scanning and BIM drawing technology to the construction monitoring of the segmental beam by a short line method, and performs fine detection and monitoring on the segmental beam construction. The monitoring method can realize the detection of the precision of the construction dimensions of all details of the external structure, the internal structure, the steering block, the anchoring block, the shear key tooth block and the diaphragm plate of the segmental beam, and adjust the manufacturing dimension of the next adjacent segmental beam according to the detection result, so that the accumulation of construction errors is avoided, and the precision of the prefabrication processing of the segmental beam is ensured.
Description
Technical Field
The invention belongs to the technical field of bridge engineering, and particularly relates to a monitoring method for segmental beam stub method prefabrication construction.
Background
For the prefabricated bridge, the precision control of the prefabricated construction of the segmental beams is an important point and a difficult problem of construction quality, and the construction precision of each segmental beam is an important guarantee for guaranteeing the integral assembly precision of the main beam.
The traditional method for controlling the prefabrication construction precision of the segmental beam by using the short line method mainly uses measuring equipment such as a total station, a level gauge, a steel tape and the like to measure and control individual control points of the prefabrication segmental beam. The monitoring method can only roughly monitor the top surface, the end surface and the height of the section beam, and cannot quickly and accurately measure and control each structure and each detail size of the section beam, which is incomplete and imperfect for controlling the precision of the section beam.
Therefore, it is necessary to develop a method capable of performing fine construction monitoring on the segment beam, rapidly, comprehensively and accurately detecting the prefabrication construction precision of the segment beam by a stub method, and providing a precision control scheme according to the detection result.
Disclosure of Invention
The invention aims to avoid the defects of the existing construction monitoring technology and provides a segment beam prefabrication construction monitoring method based on three-dimensional laser scanning and BIM technology.
The invention establishes the segment beam prefabrication construction monitoring method by using the three-dimensional laser scanning and BIM technology, detects and monitors the segment beam prefabrication construction, can greatly improve the density, efficiency and precision of detection, and ensures that the construction monitoring measures are more comprehensive and accurate.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
A segment beam prefabrication construction monitoring method based on three-dimensional laser scanning and BIM technology comprises the following steps:
a. scanning the prefabricated first segment beam by using a three-dimensional laser scanner and automatically photographing to obtain first segment Liang Dianyun data, and establishing a first segment Liang Dianyun data model;
b. Building a Building Information (BIM) model of the first segmental beam;
c. Comparing the point cloud data model of the first segmental beam with the BIM model of the first segmental beam, and verifying construction accuracy;
d. taking a first segment beam as a matched beam section to serve as an end template, prefabricating a next adjacent segment beam, and directly prefabricating the next adjacent segment beam if the construction deviation of the segment beam meets the requirement; if the construction deviation of the section beam is larger, the manufacturing size of the next adjacent section beam is adjusted and then prefabricated so that the bridge line shape meets the design requirement;
e. building a BIM model of the adjacent section beam according to the adjusted size of the adjacent section beam;
f. And (3) detecting construction precision of the prefabricated adjacent sections, and repeating the steps until all the section beams are manufactured, wherein the next adjacent section beam is prefabricated.
Further preferably, in the step a, the point cloud data includes point cloud data of all construction details of an external structure, an internal structure, a steering block, an anchoring block, a shear key tooth block and a diaphragm of the segmental beam; the photographing is automatically completed for the three-dimensional laser scanner, and aims to render a scanning result and realize live-action restoration; the point cloud data model is formed by post-processing means of noise reduction, registration, splicing and rendering of the point cloud data.
Further preferably, in step b, the modeling method for Building Information (BIM) models of the first segment beams is to use Revit software to build parameterized families of all members of the first segment beams, and then build the BIM models of the first segment beams through the family of members.
Further preferably, in step c, the comparison of the two models is realized by feature point matching; the construction precision comprises the precision of the geometric dimensions of the external structure and the internal structure of the segmental beam, and the precision of the structural dimensions of all details of the segmental beam steering block, the anchoring block, the shear key tooth block and the diaphragm plate.
Further preferably, in the step d, the adjustment of the manufacturing dimension includes the external structural dimension and the internal structural dimension of the segmental beam, and the dimensions of all constructional details of the steering block, the anchoring block, the shear key tooth block and the diaphragm; the linear design requirements of the bridge comprise geometric dimensions of the top surface along the bridge direction and the transverse bridge direction, the levelness of the top surface, the verticality of the end surface and the height of the beam.
Further preferably, in step e, the specific content and method of building the BIM model of the adjacent section beam need to be adjusted correspondingly according to the actual measurement result of the previous section beam and the adjustment of the section beam size; the adjustment is realized by changing the parameters of the component family.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. The invention provides a method for detecting the geometric dimension of a segment beam, which uses a three-dimensional laser scanner to scan a prefabricated segment beam, and can realize the rapid, comprehensive and accurate omnibearing detection of the geometric dimension of the external structure and the internal structure of the highway segment of the segment beam, and all constructional details of a steering block, an anchoring block, a shear key tooth block and a diaphragm plate.
2. The invention provides a method for monitoring the prefabrication precision of a segment beam by using a three-dimensional laser scanning and BIM technology, which is used for comparing a point cloud data model scanned by a three-dimensional laser scanner with a segment beam BIM model, so that the construction precision of each detail can be clearly known, and further, whether the next adjacent segment beam needs to be adjusted and the size and the method of the adjustment can be determined, thereby realizing the monitoring of the prefabrication construction precision of the segment beam by a stub method.
3. The invention provides a method for adjusting the prefabrication size of a segment beam by using a three-dimensional laser scanning and BIM technology, which adjusts the positions and the geometric dimensions of all constructional details of the external structure, the internal structure, a steering block, an anchoring block, a shear key tooth block and a diaphragm plate of the next adjacent segment beam according to the comparison result of a point cloud data model and a segment beam BIM model, and realizes the omnibearing monitoring of the prefabrication of the segment beam.
Drawings
Fig. 1 is a schematic view of the present invention for monitoring the construction of a segmented beam.
In the figure, 1 is a segmented beam; 2 adjacent segment beams; 3 is the joint surface of two adjacent sections of beams; 4. 5, 6 and 7 are control points; 8. is a segment Liang Duanmian; 9 is the top surface of the segmental beam.
Detailed Description
The present application is further illustrated in the accompanying drawings and detailed description which are to be understood as being merely illustrative of the application and not limiting of its scope, and various modifications of the application, which are equivalent to those skilled in the art upon reading the application, will fall within the scope of the application as defined in the appended claims.
Examples:
As shown in the attached figure 1, the invention discloses a segment beam prefabrication construction monitoring method based on three-dimensional laser scanning and BIM technology, which comprises the following steps:
a. and scanning the prefabricated segment beam 1by using a three-dimensional laser scanner and automatically photographing to obtain the point cloud data of all construction details of the external structure and the internal structure of the segment beam 1, and the steering block, the anchoring block, the shear key tooth block and the diaphragm plate. Post-processing point cloud data by using point cloud data software, deleting noise points, registering and splicing scanning results of different measuring stations, importing a shot photo into the point cloud data for rendering to form a live-action graph, and establishing a segment beam 1 point cloud data model;
b. Establishing parameterization families of all members of the segmental beam 1, such as an external structure, an internal structure, a steering block, an anchoring block, a shear key tooth block and a diaphragm by using Revit software, and establishing a segmental beam 1 Building Information (BIM) model by setting the sizes of the member families according to a design drawing;
c. And selecting control points 4,5, 6 and 7 on the segmental beam 1 as characteristic points, matching and comparing the point cloud data model of the segmental beam 1 with the BIM model, and verifying the precision of all the detail structural dimensions of the external structure, the internal structure, the steering block, the anchoring block, the shear key tooth block and the diaphragm of the segmental beam 1.
D. The next adjacent segment beam 2 is prefabricated with the segment beam 1 as a matching beam segment serving as an end form. If the construction deviation of the section beam 1 meets the requirement, directly prefabricating the next adjacent section beam 2; if the construction deviation of the section beam 1 is larger, the positions and the geometric dimensions of all construction details of the external structure, the internal structure, the steering block, the anchoring block, the shear key tooth block and the diaphragm of the next adjacent section beam 2 are adjusted and prefabricated, so that the bridge line shape accords with the design requirements of the geometric dimensions of the top surface 9 of the section beam along the bridge direction and the transverse bridge direction, the levelness of the top surface 9 of the section beam, the verticality of the end surface 8, the height of the section beam and the joint surface 3 of the adjacent two section beams;
e. according to the position and the geometric dimension of the external structure, the internal structure, the steering block, the anchoring block, the shear key tooth block and the diaphragm plate of the next adjacent section beam 2 after all the detailed structures are adjusted, a BIM model of the next adjacent section beam 2 is established by changing the parameters of the component family;
f. Prefabricating the next adjacent section beam 2, comparing the prefabricated next adjacent section beam 2 with a BIM model of the next adjacent section beam 2, detecting construction precision, and repeating the steps until all section beams are manufactured.
While the invention has been described with reference to preferred embodiments, it is not intended to be limiting. Those skilled in the art will appreciate that various modifications and adaptations can be made without departing from the spirit and scope of the present invention. Accordingly, the scope of the invention is defined by the appended claims.
Claims (6)
1. A segment beam prefabrication construction monitoring method based on three-dimensional laser scanning and BIM technology is characterized by comprising the following steps:
a. scanning the prefabricated first segment beam by using a three-dimensional laser scanner and automatically photographing to obtain first segment Liang Dianyun data, and establishing a first segment Liang Dianyun data model;
b. Building a Building Information (BIM) model of the first segmental beam;
c. Comparing the point cloud data model of the first segmental beam with the BIM model of the first segmental beam, and verifying construction accuracy;
d. taking a first segment beam as a matched beam section to serve as an end template, prefabricating a next adjacent segment beam, and directly prefabricating the next adjacent segment beam if the construction deviation of the segment beam meets the requirement; if the construction deviation of the section beam is larger, the manufacturing size of the next adjacent section beam is adjusted and then prefabricated so that the bridge line shape meets the design requirement;
e. building a BIM model of the adjacent section beam according to the adjusted size of the adjacent section beam;
f. And (3) detecting construction precision of the prefabricated adjacent sections, and repeating the steps until all the section beams are manufactured, wherein the next adjacent section beam is prefabricated.
2. The method for monitoring the prefabricated construction of the segmental beam based on the three-dimensional laser scanning and BIM technology, which is disclosed by claim 1, is characterized in that: in the step a, the point cloud data comprises the point cloud data of all construction details of an external structure, an internal structure, a steering block, an anchoring block, a shear key tooth block and a diaphragm plate of the segmental beam; the photographing is automatically completed for the three-dimensional laser scanner, and aims to render a scanning result and realize live-action restoration; the point cloud data model is formed by post-processing means of noise reduction, registration, splicing and rendering of the point cloud data.
3. The method for monitoring the prefabricated construction of the segmental beam based on the three-dimensional laser scanning and BIM technology, which is disclosed by claim 1, is characterized in that: in the step b, the modeling method for Building Information (BIM) model of the first segment beam is to build parameterized families of all members of the first segment beam by adopting Revit software, and build the BIM model of the first segment beam through the member families.
4. The method for monitoring the prefabricated construction of the segmental beam based on the three-dimensional laser scanning and BIM technology, which is disclosed by claim 1, is characterized in that: in the step c, the comparison of the two models is realized through characteristic point matching; the construction precision comprises the precision of the geometric dimensions of the external structure and the internal structure of the segmental beam, and the precision of the structural dimensions of all details of the segmental beam steering block, the anchoring block, the shear key tooth block and the diaphragm plate.
5. The method for monitoring the prefabricated construction of the segmental beam based on the three-dimensional laser scanning and BIM technology, which is disclosed by claim 1, is characterized in that: in the step d, the adjustment of the manufacturing size comprises the external structure size, the internal structure size of the segmental beam and the sizes of all construction details of the steering block, the anchoring block, the shear key tooth block and the diaphragm; the linear design requirements of the bridge comprise geometric dimensions of the top surface along the bridge direction and the transverse bridge direction, the levelness of the top surface, the verticality of the end surface and the height of the beam.
6. The method for monitoring the prefabricated construction of the segmental beam based on the three-dimensional laser scanning and BIM technology, which is disclosed by claim 1, is characterized in that: in step e, specific content and method of building BIM model of adjacent section beam need to be adjusted according to actual measurement result of the last section beam and adjustment of section beam size; the adjustment is realized by changing the parameters of the component family.
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| JP7412864B2 (en) | 2021-04-20 | 2024-01-15 | 日本高圧コンクリート株式会社 | Construction method of concrete structure using precast segments |
| CN113239429A (en) * | 2021-04-26 | 2021-08-10 | 河南省交通规划设计研究院股份有限公司 | Method for manufacturing precast assembled bridge of concrete segments |
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| CN114086467A (en) * | 2021-11-24 | 2022-02-25 | 中铁四局集团第五工程有限公司 | Prefabricated installation construction method for steel-concrete composite beam bridge deck |
| CN113977750A (en) * | 2021-11-26 | 2022-01-28 | 中交二航局第四工程有限公司安徽混凝土装配化构件分公司 | Process for quickly disassembling and assembling integrated section beam steering block template |
| CN114549780B (en) * | 2022-01-27 | 2024-04-05 | 重庆大学 | Intelligent detection method for large complex component based on point cloud data |
| CN114577141A (en) * | 2022-01-29 | 2022-06-03 | 中国建筑第八工程局有限公司 | Method for optimizing surface measurement of curved surface template based on three-dimensional laser scanning technology |
| CN115618472B (en) * | 2022-10-27 | 2024-05-14 | 中交一公局第七工程有限公司 | Engineering structure digital pre-assembly method, system and application based on BIM model |
| CN115659470A (en) * | 2022-11-01 | 2023-01-31 | 中交一公局第七工程有限公司 | Assembling method, system and application of prefabricated assembled bridge based on BIM concrete segments |
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