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A H-type 100-meter cable pylon line type control and rapid construction method

A cable tower line type and construction method technology, which is applied in the direction of erecting/assembling bridges, bridges, buildings, etc., can solve the problems of prolonging construction time, unfavorable climbing formwork efficiency and convenience, etc., so as to improve construction efficiency and construction quality , Improve the effect of control accuracy

Inactive Publication Date: 2018-12-28
CHINA RAILWAY NO 3 GRP CO LTD +1
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  • Application Information

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Problems solved by technology

However, since the tower column structure is generally an inclined and variable cross-section structure, its line shape control is a difficult problem in the construction process. In the construction stage of hydraulic climbing formwork, due to the structural limitations of the frame itself, the construction sequence of first tensioning and then climbing formwork is generally adopted. The construction will prolong the construction time, which is not conducive to the efficiency and convenience of climbing formwork construction

Method used

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  • A H-type 100-meter cable pylon line type control and rapid construction method
  • A H-type 100-meter cable pylon line type control and rapid construction method
  • A H-type 100-meter cable pylon line type control and rapid construction method

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Embodiment Construction

[0052] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0053] Such as Figure 1-Figure 4 As shown, a kind of H-type 100-meter cable tower linear control and rapid construction method of the present invention is used for H-type 100-meter cable tower. The crossbeam 2 is arranged at the lower part of the tower column 1, the cable conduit 3 is fixedly connected with the tower column 1, and the section of the tower column 1 is in the form of a variable section, including the following steps:

[0054] S1. Modeling calculation, BIM collision inspection: In the early stage of tower column construction, finite element software is used to analyze and calculate the force of the tower column model, BIM modeling is performed on tower column 1, and collision detection is performed on tower column modeling;

[0055]In this step, the simulation analysis and calculation not only need to consider the force of the structure i...

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Abstract

The invention discloses an H-type 100-meter cable pylon line type control and rapid construction method, belonging to the technical field of bridge construction. The technical problem to be solved isto provide an H-type cable pylon linear control and rapid construction method; The technical scheme adopted to solve the technical problem is as follows: including the following steps: modeling calculation, BIM collision checking; Model adjustment and optimization; Integral hoisting of prestressed members of rigid frame; Install positioning cable guide tube; Install main reinforcement; Hydraulic climbing formwork frame body climbing; Install stirrups and embedded parts; Tensioning of prestressed members in the previous section; Install template; Concrete pouring; The H-type 100-meter cable pylon line type control and rapid construction method improves the construction quality and the construction efficiency of the tower column of the cable-stayed bridge.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering construction, and in particular relates to a rapid construction method of an H-type 100-meter cable tower. Background technique [0002] At present, the lower tower column, lower beam and upper beam of the concrete H-shaped tower column structure in the high-speed railway long-span cable-stayed bridge project are generally constructed using shaped steel formwork, and the middle tower column and upper tower column are generally constructed by hydraulic climbing formwork. . The changes in working conditions during the construction process generally need to be calculated in advance, and corresponding measures should be taken in advance for the weaker parts of the structure according to the calculation results. However, since the tower column structure is generally an inclined and variable cross-section structure, its line shape control is a difficult problem in the construction process. I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00
CPCE01D21/00
Inventor 邓英海易先坤付伟石学军邵攀贾少华朱勇军梁卿恺
Owner CHINA RAILWAY NO 3 GRP CO LTD
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