Feasibility Analysis for Demolition Construction of Long-Span Truss Composite Arch Bridge

Authors

LI Qi, 1. College of Civil Engineering, Guizhou University, Guiyang, Guizhou 550025, China;Follow
DU Bin, 1. College of Civil Engineering, Guizhou University, Guiyang, Guizhou 550025, China;2. Guizhou Shunkang Testing Co., Ltd., Guiyang, Guizhou 550000, China;
LIU Qi, 2. Guizhou Shunkang Testing Co., Ltd., Guiyang, Guizhou 550000, China;
ZHU Huadong, 2. Guizhou Shunkang Testing Co., Ltd., Guiyang, Guizhou 550000, China;
MA Zhengjia, 3. Guizhou Bridge Construction Group Co., Ltd., Guiyang, Guizhou 550001, China
LIU Lei, 1. College of Civil Engineering, Guizhou University, Guiyang, Guizhou 550025, China;
CENG Guangfeng, 1. College of Civil Engineering, Guizhou University, Guiyang, Guizhou 550025, China;

Corresponding Author

杜斌,男,博士,副教授.E-mail:419901302@qq.com

Abstract

A large-span prestressed concrete truss composite arch bridge to be demolished was studied. According to the idea of dismantling before building, the retrograde demolition construction scheme using the arch rib of a newly built concrete-filled steel tube arch bridge to assist the suspension of the arch ring of the old bridge was conceived. Combined with the stress characteristics and construction technology of this type of bridge, the demolition technology and construction key points of this type of bridge were discussed in detail. The finite element analysis software Midas/Civil was used to simulate the demolition construction process and analyze the stress and deformation of the structure in each demolition stage. The calculation results show that the scheme is safe, fast, and economical, and it can provide valuable experience for the subsequent demolition projects of similar bridges.

Publication Date

1-18-2024

DOI

10.14048/j.issn.1671-2579.2022.06.026

First Page

142

Last Page

145

Submission Date

May 2025

Recommended Citation

Qi, LI; Bin, DU; Qi, LIU; Huadong, ZHU; Zhengjia, MA; Lei, LIU; and Guangfeng, CENG (2024) "Feasibility Analysis for Demolition Construction of Long-Span Truss Composite Arch Bridge," Journal of China & Foreign Highway: Vol. 42: Iss. 6, Article 26.
DOI: 10.14048/j.issn.1671-2579.2022.06.026
Available at: https://zwgl1980.csust.edu.cn/journal/vol42/iss6/26

Reference

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