BIM-based No.0 block longitudinal prestressed pipeline positioning construction method

A technology of prestressed pipelines and construction methods, applied in special data processing applications, erecting/assembling bridges, bridges, etc., to achieve high rigidity, reduced durability and structural safety, and good stability

Inactive Publication Date: 2020-08-25
HENAN NO 1 CONSTR ENG GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is how to provide a method for improving the accurate positioning of the prestressed pipeline of the No. 0 block cast-in-place on the top of the pier without affecting the positioning construction method of the No. 0 longitudinal prestressed pipeline passing through the long beam in the future; this method can avoid The technical problems of prestressed pipe hole position and structure are not straight, poor positioning accuracy, and low construction efficiency

Method used

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  • BIM-based No.0 block longitudinal prestressed pipeline positioning construction method
  • BIM-based No.0 block longitudinal prestressed pipeline positioning construction method
  • BIM-based No.0 block longitudinal prestressed pipeline positioning construction method

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Embodiment 1

[0035] Example 1: A BIM-based construction method for positioning longitudinal prestressed pipelines in Block 0, see Figure 1~5 , including the following steps:

[0036] 1) Modeling with BIM: first draw the BIM graph of the position of the No. 0 steel bar and the prestressed pipe hole, find out the collision position, optimize the position of the steel bar, and optimize and adjust the position of the steel bar in advance to ensure the accurate positioning of the prestressed pipe; The total station performs positioning and setting out on the bottom formwork, the direction of the prestressed pipeline, and the positioning steel bars, and assists the measuring tape to reduce the difficulty of prestressed pipeline installation; the accuracy of the position of the No. 0 block end formwork and the prestressed pipeline hole Design and simulate the trial assembly; extract the measurement data and trial assembly data of the No. 0 block end formwork and the position of the prestressed p...

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Abstract

The invention discloses a BIM-based No.0 block longitudinal prestressed pipeline positioning construction method. The method mainly comprises the steps of BIM modeling, support system installation, bottom die template installation and support prepressing, steel bar binding and prestressed pipeline installation, No.0 block end die template installation and adjustment and concrete pouring and maintenance. According to the method, the BIM technology is adopted to simulate the positions of the No.0 block prestressed pipeline and the reinforcing steel bars, the collision points are checked, the positions of the reinforcing steel bars can be optimized and adjusted in advance, accurate positioning of the prestressed pipeline is ensured, and the technical problems that the prestressed pipeline hole position structure is not straight, positioning precision is poor and construction efficiency is low are solved.

Description

technical field [0001] The invention relates to the technical field of continuous beam construction, in particular to a BIM-based construction method for positioning longitudinal prestressed pipelines of No. 0 block. Background technique [0002] With the development of the municipal industry and the continuous improvement of construction technology, more attention is paid to green, environmental protection, economical and reasonable construction technology. For bridge projects using prefabricated segmental assembly technology, the assembly accuracy requirements are more stringent. Among them, the assembly accuracy of cast-in-place No. 0 block and prefabricated No. 1 block determines the transverse slope, longitudinal slope and overall line shape of the bridge; The key technical point of the assembly quality of No. 0 block and prefabricated No. 1 block lies in the positioning quality of the longitudinal bellows channel of No. 0 block. [0003] The density of steel bars and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00G06F30/13
CPCE01D21/00G06F30/13
Inventor 王增恩谢继义张榜王倩倩张成安黄世龙王玺郭兵兵赵金锋吴要锋冯世凯陈树立赵俊峰吴富强刘晓阳王帅王丹周峰蔡超侯向阳李晓军马高伟王明高志峰
Owner HENAN NO 1 CONSTR ENG GRP
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