Installation construction method for tied-arch bridge arch rib

A tie-bar arch bridge and construction method technology, applied to arch bridges, bridges, bridge forms, etc., can solve the problems of prolonging the construction period, affecting the assembly quality, and low accuracy, so as to ensure the construction progress, assembly quality, and positioning accuracy high effect

Active Publication Date: 2020-07-10
CHINA RAILWAY 24TH BUREAU GRP ZHEJIANG ENG CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The arch ribs need to be installed during the construction of the tied arch bridge. The arch ribs are usually processed in the factory and then transported to the construction site for assembly. However, sometimes during on-site construction, it is found that a certain section of the arch rib does not meet th

Method used

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  • Installation construction method for tied-arch bridge arch rib
  • Installation construction method for tied-arch bridge arch rib
  • Installation construction method for tied-arch bridge arch rib

Examples

Experimental program
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Embodiment

[0021] Embodiment: A kind of installation and construction method of the arch rib of the tied arch bridge (see attached figure 1 to attach Figure 5 ), including the following steps: a. Constructing the BIM three-dimensional model of the arch rib on the computer according to the design size of the tied arch bridge 1; The sections are assembled together to form the arch rib 3; c, the arch rib section is scanned and imaged and the data is transmitted to the computer. The present invention adopts infrared laser scanning imaging technology, and the scanned arch rib section is pre-assembled in the computer to form a scanning model , compare the scanned model with the BIM 3D model, find out the inconsistencies with the BIM 3D model, and trim the inconsistent arch ribs until the scanned model matches the BIM 3D model; d. Transport to the construction site for assembly. Before the assembly, the arch rib assembly support 4 is arranged at the position of the tied arch bridge, and sever...

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PUM

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Abstract

The invention discloses an installation construction method for a tied-arch bridge arch rib. Arch ribs are pre-assembled before being transferred to a construction site to be assembled, so that the arch ribs conveyed to the construction site meet the construction requirement, the construction progress is guaranteed; the assembling and positioning accuracy of the arch ribs on the construction siteis high, and the assembling quality is guaranteed. When the tied-arch bridge arch rib is installed, a plurality of arch rib sections needed for assembling the arch rib are machined in a factory, so that the size of the arch rib sections meets the design requirement of the arch rib. After the arch rib sections are machined, scanning is conducted, simulated assembling is conducted on the scanned arch rib sections on a computer, a pre-assembled scanning model is compared with a BIM three-dimensional model built on the computer, the positions which do not conform to the BIM three-dimensional modelare found out, and the arch rib sections corresponding to the positions are trimmed. Therefore, the situation that the arch rib sections which do not meet the design requirements are conveyed to a construction site, so that a situation that the arch rib sections do not meet the requirements only during formal assembly, and the normal construction progress is influenced is avoided.

Description

technical field [0001] The invention relates to a construction technology of an arch bridge, in particular to a method for installing and constructing arch ribs of a tied arch bridge. Background technique [0002] As a member of the arch bridge family, the tied arch bridge has the general characteristics of arch bridges and has its own unique characteristics. It is a bridge type that combines the advantages of arch and beam. It combines the two basic structural forms of arch and beam to bear the load together, and give full play to the structural performance and combined effect of beam bending and arch compression. The horizontal thrust of the arch end is borne by the tie rod, so that the support of the arch end does not produce horizontal thrust. The arch ribs need to be installed during the construction of the tied arch bridge. The arch ribs are usually processed in the factory and then transported to the construction site for assembly. However, sometimes during on-site c...

Claims

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Application Information

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IPC IPC(8): E01D21/00E01D4/00
CPCE01D4/00E01D21/00
Inventor 赖建昌芮勇敢魏先斌左松庭李忠蔚王程远杨淦钦周文元张立凯
Owner CHINA RAILWAY 24TH BUREAU GRP ZHEJIANG ENG CO LTD
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