CN212175489U - Many child frame assembly steel case roof beam construction auxiliary device - Google Patents
Many child frame assembly steel case roof beam construction auxiliary device Download PDFInfo
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- CN212175489U CN212175489U CN201922225344.3U CN201922225344U CN212175489U CN 212175489 U CN212175489 U CN 212175489U CN 201922225344 U CN201922225344 U CN 201922225344U CN 212175489 U CN212175489 U CN 212175489U
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Abstract
The utility model discloses a many bed-jigs equipment steel case roof beam construction auxiliary device, include: the non-contact three-dimensional scanning device carries out three-dimensional scanning on the overall dimension of the steel box girder assembled by the split jig frame, the point cloud data after the three-dimensional scanning is processed to generate a 3D model, the 3D model is compared with a design model, the deviation is found out, the deviation is compared with the standard deviation or the design allowable deviation, and the part exceeding the standard deviation or the design required deviation is trimmed. The manufacturing period of the ultra-large steel box girder is greatly shortened, the construction progress and precision are effectively improved, and the construction cost is reduced.
Description
Technical Field
The utility model relates to an ultra-large steel construction box girder construction technical field, concretely relates to use many child framves of non-contact three-dimensional scanning technique to assemble steel box girder construction equipment.
Background
With the development of cities, urban vehicles are greatly increased, and the crossing between roads and bridges is inevitable due to reasons such as limited terrain in the cities. The ultra-large steel box girder bridge has the characteristics of light weight, high strength, high construction speed, strong environmental protection and the like, and is widely applied to municipal new construction and reconstruction projects in recent years. Due to the fact that the ultra-long and ultra-wide ultra-large steel box girder bridge is limited by a construction site, the ultra-large steel box girder bridge cannot be constructed on the same general assembly jig frame. In order to eliminate deformation and errors caused by various factors in the assembling process and ensure the integral linear size of the bridge, the assembling precision of the steel box girder at the subsection part is strictly controlled, and the steel box girder manufactured by the multiple tyre frames is pre-assembled before delivery according to the standard requirement. Therefore, the construction method is a construction method which utilizes a non-contact three-dimensional scanning technology to carry out three-dimensional scanning on the connecting part and the whole appearance size of the steel box girder assembled by each jig frame, generates point cloud data, compares a 3D scanning model with design data and the design model, processes the part with larger error, achieves the purpose of controlling the assembling precision of the segmented connecting part of the box girder and replaces the steel box girder real object pre-assembling with the 3D model virtual pre-assembling, and improves the construction efficiency.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a segmentation position and the overall dimension that segment construction was carried out to many bed frames of super-large-scale steel box girder carry out the construction auxiliary device that scans, have solved many bed frames assembly quality accuracy control's a difficult problem to saved and assembled the process in advance between many bed frames, can improve the efficiency of construction greatly, reduce engineering cost.
The utility model provides a construction auxiliary device of many bed-jigs equipment steel case roof beam which characterized in that includes: segmentation steel box girder, modeling device and non-contact three-dimensional scanning device, wherein, segmentation steel box girder includes: the box girder transverse partition plate is vertical to the box girder web plate and is arranged between the box girder top plate and the box girder web plate; the modeling device is used for building a sectional steel box girder model; the non-contact three-dimensional scanning detection device is used for carrying out three-dimensional scanning on the segmented connecting part of the steel box girder.
Preferably, the stiffening ribs are perpendicular to the lower surface of the top plate of the box girder, and the stiffening ribs are perpendicular to the bottom plate.
Preferably, the bottom plates are respectively arranged on two sides below the box girder top plate.
Preferably, the box girder webs are vertically arranged at both ends of the bottom plate.
Preferably, the box girder top plate is divided into three parts, including a middle frame with a rectangular cross section in the middle and side frames with trapezoidal cross sections on both sides of the middle frame.
The utility model provides a many bed-jigs equipment steel case roof beam construction auxiliary device has solved many bed-jigs equipment quality accuracy control's a difficult problem, make full use of the advance of this high and new technology of three-dimensional scanning technique to use it and BIM model jointly, shortened the preparation cycle of super-large-scale steel case roof beam greatly, improved construction progress and precision effectively, reduced construction cost.
Drawings
Figure 1 is the utility model discloses well segmentation steel box girder connects cross-sectional view.
Fig. 2 is the utility model discloses the virtual inspection great position schematic diagram of assembling in advance of well three-dimensional scanning.
Wherein, 1-box girder diaphragm plate; 2-box girder web; 3-box girder top plate; 4-a stiffening rib; 5-a bottom plate; 6-a sectional steel box girder A; 7-a sectional steel box girder B; 8-web splicing line; 9-top plate splicing line; 10-bottom plate splicing line; 11-physical scan web line; 12-object scanning of the ceiling line; 13-the part with larger deviation of the web plate line; 14-the location where the roof line has a large deviation.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
As shown in fig. 1 to 2, a construction auxiliary device for a multi-truss assembled steel box girder is characterized by comprising: segmentation steel box girder, modeling device and non-contact three-dimensional scanning device, wherein, segmentation steel box girder includes: the box girder transverse partition plate 1 is perpendicular to the box girder web plate 2 and is arranged between the box girder top plate 3 and the bottom plate 5; the modeling device is used for building a sectional steel box girder model; the non-contact three-dimensional scanning detection device is used for carrying out three-dimensional scanning on the segmented connecting part of the steel box girder.
Preferably, the stiffening ribs 4 are arranged perpendicular to the lower surface of the box girder top plate 3, and the stiffening ribs 4 are arranged perpendicular to the bottom plate 5.
Preferably, the bottom plates 5 are respectively arranged at two sides below the box girder top plate 3.
Preferably, the box girder webs 2 are vertically arranged at both ends of the bottom plate 5.
Preferably, the box girder top plate 3 is divided into three parts including a middle frame having a rectangular cross section at the middle part and side frames having trapezoidal cross sections at both sides of the middle frame.
The modeling device utilizes BIM software to establish an integral model of the steel box girder and establishes a sectional steel box girder model according to site conditions and hoisting capacity; comparing the point cloud data of the generated connecting part with the design data in the non-contact three-dimensional scanning device, and deriving the deviation size of the key point of the part with larger deviation; the non-contact three-dimensional scanning device carries out overall outline dimension three-dimensional scanning on the segmented steel box girder manufactured by each jig frame, and a 3D model is generated through data processing; and (3) carrying out secondary scanning on the steel box girder by using a non-contact three-dimensional scanning device, and virtually pre-assembling all the segmented box girder 3D models in a computer.
The utility model provides a many bed-jigs equipment steel case roof beam construction auxiliary device, work process and principle are: the first step is as follows: and building an integral model of the steel box girder by using BIM software, and building a sectional steel box girder model according to site conditions and hoisting capacity. The second step is that: and (4) erecting an assembly jig frame for each section of the steel box girder according to the section position of the steel box girder, and completing the assembly of the section steel box girder. The third step: and (3) carrying out three-dimensional scanning (local scanning for short) on the segmented connecting part of the steel box girder, comparing the generated point cloud data of the connecting part with the design data, and deriving the deviation size of the key point of the part with larger deviation. The fourth step: analyzing the deviation size and the position: if the next section of steel box girder connected with the scanning device is not manufactured, the size of the connecting part of the next section of steel box girder can be adjusted according to the scanning result, and finally the connecting size of the steel box girder meets the requirement. And (3) after the next section of steel box girder is manufactured, three-dimensional scanning is carried out on the next section of steel box girder and the connecting part of the next section of steel box girder, point cloud data generated by the two sections of scanning are compared, if collision exists, cutting processing is carried out, and if the gap value is large, repairing is carried out or connection is finished through later-stage welding line processing. The fifth step: and carrying out overall outline dimension three-dimensional scanning on the segmented steel box girder manufactured by each jig, generating a 3D model through data processing, comparing the 3D model with the BIM model, carrying out collision inspection, comparing the position with a standard or design allowable value when the deviation is larger, and finishing the deviation position if the deviation exceeds the standard or design requirement. And a sixth step: and after finishing, scanning the steel box girder for the second time, and finally virtually pre-assembling all the segmented box girder 3D models in a computer to replace the pre-assembling process of the real object steel box girder.
The utility model provides a many bed-jigs equipment steel box girder construction auxiliary device carries out three-dimensional scanning through the steel box girder overall dimension that the split bed-jig has been assembled and has been accomplished, through the point cloud data processing behind the three-dimensional scanning and generate the 3D model to contrast with the design model, find out the deviation, contrast through deviation and standard or design allowable deviation, maintain the position that surpasss standard or design requirement deviation. After all the procedures of the steel box girder are completed, the steel box girder at the sections is scanned for the second time, the 3D model is calculated and generated, and then virtual pre-assembly is realized to replace real object pre-assembly, so that the problem of quality precision control of multi-jig assembly is solved, the advancement of the high and new technology of the three-dimensional scanning technology is fully utilized, and the three-dimensional scanning technology is used in combination with the BIM model, so that the manufacturing period of the ultra-large steel box girder is greatly shortened, the construction progress and precision are effectively improved, and the construction cost is reduced.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of the invention or which are equivalent to the scope of the invention are embraced by the invention.
Claims (5)
1. The utility model provides a construction auxiliary device of many bed-jigs equipment steel case roof beam which characterized in that includes: segmentation steel box girder, modeling device and non-contact three-dimensional scanning device, wherein, segmentation steel box girder includes: the box girder transverse partition plate (1), the box girder web (2), the box girder top plate (3), the stiffening ribs (4) and the bottom plate (5), wherein the stiffening ribs (4) are arranged on the lower surface of the box girder top plate (3) and the upper surface of the bottom plate (5), the box girder web (2) is vertically arranged between the box girder top plate (3) and the bottom plate (5), and the box girder transverse partition plate (1) is perpendicular to the box girder web (2) and is arranged between the box girder top plate (3) and the bottom plate (5); the modeling device is used for building a sectional steel box girder model; the non-contact three-dimensional scanning detection device is used for carrying out three-dimensional scanning on the segmented connecting part of the steel box girder.
2. The multi-truss assembled steel box girder construction auxiliary device as claimed in claim 1, wherein: the stiffening ribs (4) are perpendicular to the lower surface of the box girder top plate (3), and the stiffening ribs (4) are perpendicular to the bottom plate (5).
3. The multi-truss assembled steel box girder construction auxiliary device as claimed in claim 2, wherein: the bottom plates (5) are respectively arranged on two sides below the box girder top plate (3).
4. The multi-truss assembled steel box girder construction auxiliary device as claimed in claim 3, wherein: the box girder webs (2) are vertically arranged at two ends of the bottom plate (5).
5. The multi-truss assembled steel box girder construction auxiliary device as claimed in claim 4, wherein: the box girder top plate (3) is divided into three parts, including a middle frame with a rectangular cross section in the middle and side frames with trapezoidal cross sections on two sides of the middle frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922225344.3U CN212175489U (en) | 2019-12-12 | 2019-12-12 | Many child frame assembly steel case roof beam construction auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922225344.3U CN212175489U (en) | 2019-12-12 | 2019-12-12 | Many child frame assembly steel case roof beam construction auxiliary device |
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| Publication Number | Publication Date |
|---|---|
| CN212175489U true CN212175489U (en) | 2020-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922225344.3U Active CN212175489U (en) | 2019-12-12 | 2019-12-12 | Many child frame assembly steel case roof beam construction auxiliary device |
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| Country | Link |
|---|---|
| CN (1) | CN212175489U (en) |
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2019
- 2019-12-12 CN CN201922225344.3U patent/CN212175489U/en active Active
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