CN115564922A - Monitoring method for segment beam assembly construction based on three-dimensional laser scanning and BIM technology - Google Patents

Monitoring method for segment beam assembly construction based on three-dimensional laser scanning and BIM technology Download PDF

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Publication number
CN115564922A
CN115564922A CN202211131484.4A CN202211131484A CN115564922A CN 115564922 A CN115564922 A CN 115564922A CN 202211131484 A CN202211131484 A CN 202211131484A CN 115564922 A CN115564922 A CN 115564922A
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beam section
section
precision
point cloud
cloud data
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Inventor
陶建军
薛东焱
莫鲁晟
肖峥
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Shaoxing Traffic Construction Co ltd
Jiangsu University of Science and Technology
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Shaoxing Traffic Construction Co ltd
Jiangsu University of Science and Technology
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Priority to CN202211131484.4A priority Critical patent/CN115564922A/en
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
    • G06T17/20—Finite element generation, e.g. wire-frame surface description, tesselation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00—Administration; Management
    • G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
    • G06Q10/063—Operations research, analysis or management
    • G06Q10/0631—Resource planning, allocation, distributing or scheduling for enterprises or organisations
    • G06Q10/06311—Scheduling, planning or task assignment for a person or group
    • G06Q10/063114—Status monitoring or status determination for a person or group
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
    • G06Q50/08—Construction
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
    • G06T17/10—Constructive solid geometry [CSG] using solid primitives, e.g. cylinders, cubes

Abstract

The invention discloses a monitoring method for segment beam assembly construction based on three-dimensional laser scanning and BIM technology, which comprises the following steps: building a Building Information (BIM) model of the sectional beam, building a point cloud data model of each assembling step through three-dimensional laser scanning, comparing the point cloud data model of each assembling step with the BIM model, verifying construction precision, and adjusting the assembling of the sectional beam according to the construction precision. The invention applies three-dimensional laser scanning and BIM technology to the monitoring of the assembly construction of the sectional beams and carries out fine detection and monitoring on the assembly construction of the sectional beams. The monitoring method provided by the invention can be used for detecting the geometrical sizes of the longitudinal bridge direction and the transverse bridge direction, the deviation of the central line of the top surface of the beam section, the longitudinal slope and the transverse slope of the top surface of the beam section, the elevation of the top surface of the beam section and the accuracy of splicing and slab staggering of the beam section after the assembly of the section beams, adjusting the assembly of the section beams according to the detection result, avoiding the accumulation of construction errors and ensuring the accuracy and quality of the assembly construction of the section beams.

Description

Monitoring method for segment beam assembly construction based on three-dimensional laser scanning and BIM technology
Technical Field
The invention belongs to the technical field of bridge engineering, relates to a monitoring method for segmental beam assembling construction, and particularly relates to a monitoring method for segmental beam assembling construction based on three-dimensional laser scanning and BIM technology.
Background
For prefabricated bridges, the precision control of the assembly construction of the segmental girders is an important technical measure for guaranteeing the construction quality and the integral assembly line shape of the main girders.
A traditional method for controlling the assembling construction precision of a segmental beam mainly uses measuring equipment such as a total station, a level gauge and a steel tape to measure and control points Liang Gebie of a segment. The monitoring method can only carry out rough monitoring on the top surface and the elevation of the segmental beam, and cannot carry out quick and accurate measurement and control on the line shape and the elevation of each position of the top surface of the segmental beam, which is incomplete and incomplete for the control on the assembly precision of the segmental beam.
Therefore, it is necessary to develop a method capable of performing fine construction monitoring on the assembly of the section beams, rapidly, comprehensively and accurately detecting the assembly construction precision of the section beams, 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 monitoring method for section beam assembly construction based on three-dimensional laser scanning and BIM technology.
The invention establishes the segment beam assembly construction monitoring method by using three-dimensional laser scanning and BIM technology, detects and monitors the segment beam assembly construction, and can greatly improve the detection density, efficiency and precision, so that the construction monitoring measures are more comprehensive and accurate.
In order to realize the purpose, the invention adopts the technical scheme that:
a monitoring method for segment beam assembly construction based on three-dimensional laser scanning and BIM technology comprises the following steps:
a. building a Building Information (BIM) model of all beam sections of the section beams and a building information model of a full bridge according to a design drawing;
b. no. 0 beam section and No. 1 beam section are respectively installed on the tops of a first bridge pier and a second bridge pier of the first span, and a leveling point is introduced to the top surfaces of the No. 0 beam section and the No. 1 beam section. Scanning the mounted beam section No. 0 and the beam section No. 1 by using a three-dimensional laser scanner to obtain point cloud data of the beam section No. 0 and the beam section No. 1, and establishing point cloud data models of the beam section No. 0 and the beam section No. 1;
c. comparing the point cloud data models of the beam section No. 0 and the beam section No. 1 with the BIM models of the corresponding beam sections and the full-bridge BIM model, verifying the installation accuracy and adjusting the positions of the beam section No. 0 and the beam section No. 1 to ensure that the installation accuracy meets the design requirement;
d. hoisting all the assembled beam sections in place; lifting the No. 2 beam section and the No. 3 beam section to a design elevation and assembling, scanning the assembled No. 2 beam section and No. 3 beam section by using a three-dimensional laser scanner to obtain point cloud data after the No. 2 beam section and the No. 3 beam section are assembled, and establishing a point cloud data model after the No. 2 beam section and the No. 3 beam section are assembled;
e. comparing the point cloud data model after the No. 2 beam section and the No. 3 beam section are assembled with the BIM model after the corresponding beam sections are assembled and the full-bridge BIM model, verifying the assembling precision and adjusting the positions of the No. 2 beam section and the No. 3 beam section to ensure that the assembling precision meets the design requirement;
f. according to the assembling precision of the No. 2 beam section and the No. 3 beam section, the assembling and adjusting scheme of the No. 4 beam section is determined, the No. 4 beam section is lifted to a design elevation and is assembled, the No. 2, the No. 3 and the No. 4 beam sections are scanned by using a three-dimensional laser scanner, an assembled point cloud data model is established, the assembled point cloud data model is compared with a BIM model assembled by corresponding beam sections and a full-bridge BIM model, the assembling precision is verified, the position of the No. 4 beam section is adjusted, and the assembling precision meets the design requirements. Repeating the steps until the last beam section is assembled;
g. finishing cast-in-place joints between pier top beam sections and assembled beam sections, scanning the first span section beam by using a three-dimensional laser scanner, establishing a point cloud data model after the first span assembly, comparing the point cloud data model with a full-bridge BIM model, verifying assembly precision and adjusting the beam section position to ensure that the assembly precision meets design requirements, and finishing assembly construction of the first span section beam;
h. and the construction of assembling other spans of the full bridge is completed by repeating the steps.
Further preferably, in step a, the segment Liang Quanqiao building information model is a BIM model including information of segment Liang Gaocheng.
Preferably, in the step b, the setting positions of the leveling points are the positions of the geometric centers of the top surfaces of the beam sections No. 0 and No. 1, and the leveling points are marked by drawing crossed lines with the width of 5mm and the length of 50mm by red paint; the point cloud data model comprises the height data of the introduced top surface level points of the beam section No. 0 and the beam section No. 1.
Preferably, in the step c, the installation accuracy mainly refers to the geometric dimension accuracy of the No. 0 beam section and the No. 1 beam section in the longitudinal bridge direction and the transverse bridge direction, the deviation accuracy of the center line of the top surface of the beam section, the accuracy of the longitudinal slope and the transverse slope of the top surface of the beam section, and the elevation accuracy of the top surface of the beam section.
Preferably, in the step d, the step e, the step f and the step g, the point cloud data model includes elevation data of introduced top surface level points of the beam segment No. 0 or the beam segment No. 1.
Preferably, in the step e, the step f and the step g, the assembling precision mainly refers to the precision of the geometrical dimensions of the assembled longitudinal bridge direction and the assembled transverse bridge direction, the deviation precision of the central line of the top surface of the beam section, the precision of the longitudinal slope and the transverse slope of the top surface of the beam section, the height precision of the top surface of the beam section and the precision of splicing and staggering.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the invention provides a method for detecting the assembling geometric dimension of a section beam, which is characterized in that a three-dimensional laser scanner is used for scanning the assembled section beam, so that the geometric dimension of the assembled section beam can be rapidly, comprehensively and accurately detected in an all-around manner.
2. The invention provides a method for detecting the elevation of an assembled segmental beam, which is characterized in that a leveling point is introduced to the top surface of the segmental beam, and the assembled segmental beam is scanned by using a three-dimensional laser scanner, so that the elevation of any point on the top surface of the assembled segmental beam can be detected.
3. The invention provides a method for monitoring the assembly precision of a section beam by using three-dimensional laser scanning and BIM technology, which can clearly know the assembly precision of each detail by comparing a point cloud data model scanned by a three-dimensional laser scanner with a BIM model of the section beam, thereby determining whether the assembly of the next section beam needs to be adjusted and the size and the method of the adjustment and realizing the monitoring of the assembly construction precision of the section beam.
Drawings
Fig. 1 is a schematic view of monitoring of the segmental beam assembly construction of the present invention.
In the figure, 0-10 are respectively No. 0-10 segment beams; 1-1, 1-2, 1-3, and the third bridge pier; 2-1 is a built bridge girder; 3-1 is a bridge girder erection machine.
Detailed Description
The present invention is further illustrated by the following figures and specific examples, which are to be understood as illustrative only and not as limiting the scope of the invention, which is to be given the full breadth of the appended claims and any and all equivalent modifications thereof which may occur to those skilled in the art upon reading the present specification.
Example (b):
as shown in fig. 1, the monitoring method for segment beam assembly construction based on three-dimensional laser scanning and BIM technology of the present invention includes the following steps:
a. according to a design drawing, establishing a section beam 0-10 number beam section Building Information (BIM) model and a full-bridge building information model, wherein the BIM model comprises information of the position, the geometric dimension and the elevation of a section beam;
b. a beam section 1 and a beam section 0 are respectively installed on the tops of a first pier 1-1 and a second pier 1-2, a leveling point is introduced to the top surfaces of the beam section 0 and the beam section 1, the setting position of the leveling point is the position of the geometric center of the top surfaces of the beam sections 0 and 1, and the leveling point is marked by drawing a crossed line with the width of 5mm and the length of 50mm by red paint. And scanning the mounted beam section No. 0 and the beam section No. 1 by using a three-dimensional laser scanner to obtain point cloud data of the beam section No. 0 and the beam section No. 1, and establishing a point cloud data model of the beam section No. 0 and the beam section No. 1. The point cloud data model comprises elevation data of introduced beam section top surface level points No. 0 and No. 1;
c. and comparing the point cloud data models of the No. 0 beam section and the No. 1 beam section with the BIM models of the corresponding beam sections and the full-bridge BIM models, and verifying the installation accuracy, wherein the installation accuracy mainly refers to the geometric dimension accuracy of the No. 0 beam section and the No. 1 beam section in the longitudinal bridge direction and the transverse bridge direction, the deviation accuracy of the central line of the top surface of the beam section, the accuracy of the longitudinal slope and the transverse slope of the top surface of the beam section and the elevation accuracy of the top surface of the beam section. If the mounting accuracy does not meet the design requirement, adjusting the positions of the No. 0 beam section and the No. 1 beam section to enable the mounting accuracy to meet the design requirement;
d. hoisting all No. 2-10 spliced beam sections in place; lifting the No. 2 beam section and the No. 3 beam section to a design elevation and assembling, scanning the assembled No. 2 beam section and No. 3 beam section by using a three-dimensional laser scanner, obtaining point cloud data after the No. 2 beam section and the No. 3 beam section are assembled, and establishing a point cloud data model after the No. 2 beam section and the No. 3 beam section are assembled. During scanning, ensuring that the top surface level point of the No. 1 beam section can be scanned, and enabling the point cloud data model to contain the introduced elevation data of the top surface level point of the No. 1 beam section;
e. and comparing the point cloud data model after the No. 2 beam section and the No. 3 beam section are assembled with the BIM model after the corresponding beam sections are assembled and the full-bridge BIM model, and verifying the assembling precision, wherein the assembling precision mainly refers to the geometric dimension precision of the No. 2 beam section and the No. 3 beam section in the longitudinal bridge direction and the transverse bridge direction, the deviation precision of the central line of the top surface of the beam section, the precision of the longitudinal slope and the transverse slope of the top surface of the beam section, the height precision of the top surface of the beam section and the precision of splicing and slab staggering. If the assembling precision does not meet the design requirement, adjusting the positions of the No. 2 beam section and the No. 3 beam section to ensure that the assembling precision meets the design requirement;
f. and determining an assembling and adjusting scheme of the No. 4 beam section according to the assembling precision of the No. 2 beam section and the No. 3 beam section, lifting the No. 4 beam section to a design elevation and assembling, scanning the No. 2, no. 3 and No. 4 beam sections by using a three-dimensional laser scanner, and establishing an assembled point cloud data model. During scanning, the top surface level point of the No. 1 beam section can be scanned, so that the point cloud data model contains the introduced elevation data of the top surface level point of the No. 1 beam section. And comparing the point cloud data model with the BIM model and the full-bridge BIM model after the assembly of the corresponding beam sections, and verifying the assembly precision. And if the assembling precision does not meet the design requirement, adjusting the position of the No. 4 beam section to ensure that the assembling precision meets the design requirement. Repeating the steps until the No. 10 beam section is assembled;
g. and finishing cast-in-place joints between the pier top beam sections and the assembled beam sections, scanning the first span section beam by using a three-dimensional laser scanner, and establishing a point cloud data model after the first span is assembled. During scanning, the top surface level point of the No. 1 beam section can be scanned, so that the point cloud data model contains the introduced elevation data of the top surface level point of the No. 1 beam section. And comparing the point cloud data model with the full-bridge BIM model, and verifying the assembling precision, wherein the assembling precision mainly refers to the geometric dimension precision of the first span section beam assembled in the longitudinal direction and the transverse direction, the deviation precision of the central line of the top surface of the beam section, the precision of the longitudinal slope and the transverse slope of the top surface of the beam section, the height precision of the top surface of the beam section and the precision of splicing and staggering. If the assembling precision does not meet the design requirement, adjusting the beam section position to ensure that the assembling precision meets the design requirement, and completing the assembling construction of the first span section beam;
h. and the construction of assembling other spans of the full bridge is completed by repeating the steps.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims (6)

1. A monitoring method for segment beam assembly construction based on three-dimensional laser scanning and BIM technology is characterized by comprising the following steps:
a. building all beam section Building Information (BIM) models and full-bridge building information models of the section beams according to a design drawing;
b. respectively installing a No. 0 beam section and a No. 1 beam section on the pier tops of a first pier and a second pier of a first span, and introducing a leveling point to the top surfaces of the No. 0 beam section and the No. 1 beam section; scanning the mounted beam section No. 0 and the beam section No. 1 by using a three-dimensional laser scanner to obtain point cloud data of the beam section No. 0 and the beam section No. 1, and establishing point cloud data models of the beam section No. 0 and the beam section No. 1;
c. comparing the point cloud data models of the No. 0 beam section and the No. 1 beam section with the BIM model of the corresponding beam section and the full-bridge BIM model, verifying the installation accuracy, and adjusting the positions of the No. 0 beam section and the No. 1 beam section to ensure that the installation accuracy meets the design requirements;
d. hoisting all the assembled beam sections in place; lifting the No. 2 beam section and the No. 3 beam section to a design elevation and assembling, scanning the assembled No. 2 beam section and No. 3 beam section by using a three-dimensional laser scanner to obtain point cloud data after the No. 2 beam section and the No. 3 beam section are assembled, and establishing a point cloud data model after the No. 2 beam section and the No. 3 beam section are assembled;
e. comparing the point cloud data model after the No. 2 beam section and the No. 3 beam section are assembled with the BIM model after the corresponding beam sections are assembled and the full-bridge BIM model, verifying the assembling precision and adjusting the positions of the No. 2 beam section and the No. 3 beam section to ensure that the assembling precision meets the design requirement;
f. determining an assembling and adjusting scheme of the No. 4 beam section according to the assembling precision of the No. 2 beam section and the No. 3 beam section, lifting the No. 4 beam section to a design elevation and assembling, scanning the No. 2, no. 3 and No. 4 beam sections by using a three-dimensional laser scanner, establishing an assembled point cloud data model, comparing the point cloud data model with a BIM model after the corresponding beam sections are assembled and a full-bridge BIM model, verifying the assembling precision and adjusting the position of the No. 4 beam section to enable the assembling precision to meet the design requirement; repeating the steps until the last beam section is assembled;
g. finishing cast-in-place joints between pier top beam sections and assembled beam sections, scanning the first span section beam by using a three-dimensional laser scanner, establishing a point cloud data model after the first span assembly, comparing the point cloud data model with a full-bridge BIM model, verifying assembly precision and adjusting the beam section position to ensure that the assembly precision meets design requirements, and finishing assembly construction of the first span section beam;
h. and the construction of assembling other spans of the full bridge is completed by repeating the steps.
2. The monitoring method for the segment beam prefabrication construction based on the three-dimensional laser scanning and the BIM technology as claimed in claim 1, wherein: in step a, the segment Liang Quanqiao building information model is a BIM model containing segment Liang Gaocheng information.
3. The monitoring method for the segment beam prefabrication construction based on the three-dimensional laser scanning and the BIM technology as claimed in claim 1, wherein: in the step b, the setting positions of the leveling points are the positions of the geometric centers of the top surfaces of the No. 0 and No. 1 beam sections, and the leveling points are marked by drawing crossed lines with the width of 5mm and the length of 50mm by red paint; the point cloud data model comprises the height data of the introduced top surface level points of the beam section No. 0 and the beam section No. 1.
4. The monitoring method for the prefabrication construction of the section beam based on the three-dimensional laser scanning and the BIM technology as claimed in claim 1, wherein the monitoring method comprises the following steps: in the step c, the installation precision mainly refers to the geometric dimension precision of the No. 0 beam section and the No. 1 beam section in the longitudinal bridge direction and the transverse bridge direction, the deviation precision of the top surface center line of the beam section, the precision of the longitudinal slope and the transverse slope of the top surface of the beam section and the elevation precision of the top surface of the beam section.
5. The monitoring method for the segment beam prefabrication construction based on the three-dimensional laser scanning and the BIM technology as claimed in claim 1, wherein: and d, step e, step f and step g, wherein the point cloud data model comprises the introduced elevation data of the top surface level point of the beam section No. 0 or the beam section No. 1.
6. The monitoring method for the prefabrication construction of the section beam based on the three-dimensional laser scanning and the BIM technology as claimed in claim 1, wherein the monitoring method comprises the following steps: in the step e, the step f and the step g, the assembling precision mainly refers to the geometrical size precision of the assembled longitudinal bridge direction and the assembled transverse bridge direction, the deviation precision of the central line of the top surface of the beam section, the precision of the longitudinal slope and the transverse slope of the top surface of the beam section, the height precision of the top surface of the beam section and the precision of the splicing and staggering platform.
CN202211131484.4A 2022-09-15 2022-09-15 Monitoring method for segment beam assembly construction based on three-dimensional laser scanning and BIM technology Pending CN115564922A (en)

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CN202211131484.4A CN115564922A (en) 2022-09-15 2022-09-15 Monitoring method for segment beam assembly construction based on three-dimensional laser scanning and BIM technology

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