Bracket for thin-wall hollow high-pier cantilever perfusing continuous beam and constructing method thereof

Abstract

The invention provides a bracket for a thin-wall hollow high-pier cantilever perfusing continuous beam and a constructing method of the bracket, and solves the existing problems that a 0# block support has large dead weight and is easy to damage pier body concrete when being disassembled. The bracket for the thin-wall hollow high-pier cantilever perfusing continuous beam comprises two groups of parallel upper pre-embedded steel sleeves (1) arranged in a pier body (13) and two groups of lower pre-embedded steel sleeves (6). Pre-embedded upper steel plates (2) with holes and pre-embedded lower steel plates (3) with holes are pre-embedded on two opposite side walls of the pier body (13). Finish rolling threaded steels are arranged in the pre-embedded steel sleeves. Lower finish rolling threaded steel nuts are arranged at both end parts of the lower finish rolling threaded steels extending out from holes of outer lower steel plates (5) with the holes arranged at both opposite sides of the pier body (13). Brackets are welded on outer upper steel plates (4) with holes. The invention further discloses a specific constructing method of the bracket. The bracket for the thin-wall hollow high-pier cantilever perfusing continuous beam is particularly suitable for a thin-wall hollow high-pier cantilever perfusing continuous beam with dense main reinforcements.

Description

technical field [0001] The invention relates to a prestressed corbel bracket for high-altitude operations in bridge engineering, in particular to a thin-walled hollow high pier cantilever perfusion continuous beam. # A block prestressed corbel bracket and its construction method. Background technique [0002] In order to meet the high-standard performance requirements such as high speed, high comfort, and high safety of passenger dedicated lines, bridge engineering accounts for more than 90% of the high-speed railway line design, especially when crossing large rivers, large rivers, and high mountains and valleys. The design of piers and long-span prestressed concrete cantilever pouring continuous beams is not uncommon. For high piers and long-span cantilever pouring continuous beams across large rivers, rivers and alpine valleys # It is uneconomical and unrealistic to support the ground support of block construction. The thin-walled hollow high pier cantilevered continuou...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a thin-walled hollow high pier cantilever perfusion continuous beam corbel bracket and its construction method, which solves the problems of the prior art. # The weight of the block bracket is large, and the concrete of the pier body is easy to be damaged when the bracket is removed, and the surface of the steel embedded in the concrete is difficult to seal and deal with

Images