Calculation of arch rib installation alignment of large span cable hoisting arch bridge

Authors

XIONG Shaohui, 1. Chongqing Jiaotong University, Chongqing 400067, China; 2. China Merchants Chongqing Communications Technology Research & Design Institute Co.Ltd., Chongqing 400067, China;Follow
GUO Xin, 3. Highway Engineering Test and Testing Center, Changsha University of Science & Technology, Changsha, Hunan 410076, China;
YOU Zuoqiao, 4. Chongqing Tianhua Architectural Design Co., Ltd., Chongqing 400043, China

Abstract

Cable hoisting method is the most important construction method for long-span arch bridges. In the process of arch rib lifting, the partial consolidation of the joint caused by temporary bolt connection, the deflection of the tower caused by the temporary construction load of the main cable, and the free expansion of the anchor cable and the buckle cable caused by temperature change will have a great influence on the installation alignment of the arch rib. In this paper, a two-element model method considering stiffness loss was used to calculate the correction value of the arch rib installation alignment more accurately when considering the partial consolidation of arch rib joints. Based on the geometric relationship between cable and tower, the calculation formula of tower deflection and free expansion of anchor cable and buckle cable caused by temperature change was derived, and the correction value of tower deflection and temperature change of anchor cable and buckle cable on arch rib installation alignment was calculated. Finally, the arch rib installation alignment of the long-span cable-hoisted arch bridge was calculated according to the formula that considered the influencing factors. By taking the Lancang River Bridge in Yunnan Province as an example, the arch alignment error meets the standard requirements.

Publication Date

7-14-2023

DOI

10.14048/j.issn.1671-2579.2023.03.017

First Page

109

Last Page

113

Submission Date

March 2025

Recommended Citation

Shaohui, XIONG; Xin, GUO; and Zuoqiao, YOU (2023) "Calculation of arch rib installation alignment of large span cable hoisting arch bridge," Journal of China & Foreign Highway: Vol. 43: Iss. 3, Article 17.
DOI: 10.14048/j.issn.1671-2579.2023.03.017
Available at: https://zwgl1980.csust.edu.cn/journal/vol43/iss3/17

Reference

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