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A Consolidation and Removal Construction Method of Block 0# of Ultra-Width Variable Cross-section Continuous Beam

A construction method and variable cross-section technology, applied in bridges, bridge materials, bridge construction, etc., can solve the problems of not being able to resist unbalanced bending moments and waste materials, and achieve the effects of saving construction time, reducing costs, and improving project quality

Active Publication Date: 2016-10-12
CHINA CONSTR SIXTH ENG BUREAU CIVILENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent is applicable to H-type double-column piers, not for rectangular pier columns
Moreover, the truss structure supporting the column of this patent cannot resist the unbalanced bending moment very well, and wastes materials

Method used

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  • A Consolidation and Removal Construction Method of Block 0# of Ultra-Width Variable Cross-section Continuous Beam
  • A Consolidation and Removal Construction Method of Block 0# of Ultra-Width Variable Cross-section Continuous Beam
  • A Consolidation and Removal Construction Method of Block 0# of Ultra-Width Variable Cross-section Continuous Beam

Examples

Experimental program
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Effect test

Embodiment 1

[0032] (1) A row of steel pipe columns 1 are respectively installed along the transverse bridge direction on the left and right sides of the continuous pier 11 as temporary piers, and the adjacent steel pipe columns in the same row are connected by a connecting system 12;

[0033] (2) Each steel pipe column 1 is connected to the embedded part 10 on the side wall of the continuous pier on the adjacent side respectively by welding the upper tie beam 4 and the lower tie beam 3 along the horizontal direction, and the upper tie beam 4 and the lower tie beam 3 extend to the outer side of the steel pipe column 1, and the upper tie beam 4 and the outer side of the lower tie beam 3 on the same steel pipe column 1 are fixedly connected by an inclined beam 5;

[0034] (3) On the left and right sides of the pier top of the continuous pier 11, two rows of reinforced concrete temporary consolidation blocks 9 are poured and fixed respectively along the transverse bridge direction, and each ro...

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Abstract

The invention discloses a consolidation and release construction method for 0# blocks of an ultra-wide non-uniform continuous beam. The method comprises the following steps: respectively mounting steel pipe columns on the left side and the right side of each continuous pier as temporary piers, and connecting every two adjacent steel pipe columns in the same row through a connecting tie; connecting each steel pipe column and an embedded part on the side wall of the continuous pier on the adjacent side by adopting an upper tie beam and a lower tie beam; pouring two rows of reinforced concrete temporary consolidation blocks on the left side and the right side of the pier top of each continuous pier; respectively fixing a bearing pad stone on the front side and the rear side of the middle of the pier top of each continuous pier; respectively fixing a spherical steel bearing on each bearing pad stone; fixing a plurality of cushion blocks on each upper tie beam; fixing a distribution beam on each cushion block; respectively fixing a triangular bottom die bent frame on each of the multiple distribution beams on each side; carrying out 0# block pouring on each triangular bottom die bent frame; cutting off the reinforced concrete temporary consolidation blocks and the steel pipe columns before middle-span closure of box beam blocks on every two adjacent continuous piers. Due to the adoption of the method disclosed by the invention, the engineering quality is improved.

Description

technical field [0001] The invention relates to a construction method for temporary consolidation and release of 0# block of a bridge, in particular to a steel pipe frame method for 0# block of an ultra-wide variable cross-section continuous beam and an integrated construction method for temporary consolidation and release. Background technique [0002] In recent years, with the rapid development of the national economy and the continuous progress of science and technology, bridge construction technology has developed rapidly, and long-span bridges have become more and more widely used, creating a new situation in bridge construction. Continuous beam cantilever pouring method is one of the main methods for the construction of long-span prestressed concrete continuous beams in my country, and the 0# block is the key and difficult part of construction. The premise of hanging basket cantilevered construction is to temporarily consolidate the continuous pier, so that the beam bo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D21/10
CPCE01D21/10E01D2101/26
Inventor 袁银书王丽梅朱建华张钊王彦虎
Owner CHINA CONSTR SIXTH ENG BUREAU CIVILENG
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