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Corresponding Author

田仲初，男，博士，教授.E-mail：[email protected]

Abstract

To clarify the influence of the cable hoisting system as an auxiliary system on structural stability during the construction of a cantilever casting arch bridge, this paper took the Shuiluo River Bridge as the engineering background, and established the model of the cable-stayed buckle hanging system and the cable hoisting system with the use of finite element software. It analyzed the influence on stability from the different lifting weights in the cable hoisting system, geometric nonlinearity considering geometric initial defects, material nonlinearity, the wall thickness of the buckle tower steel pipe, the removal sequence of buckle anchor cables, the installation number of arch spacer plates of the separated arch bridge, and the lateral movement of the cable lifting weight. The results show the followings. ① For the first type of stability problem, the influence of the cable hoisting system on the stability of the overall structure is mainly concentrated in the early stage of the whole construction process. In the later stage of construction, the stability coefficient trends under the five load conditions tend to be consistent. As the lifting weight of the cable hoisting system increases step by step, the variation pattern of the structural stability coefficient changes accordingly. After a certain lifting weight is reached, the variation pattern of the stability coefficient does not change;② After the cable hoisting load is included, the second type of stability coefficient of the structure further decreases, compared with that of the model without considering the cable hoisting system, which indicates that its influence on structural stability further increases;③ The wall thickness of the buckle tower steel pipe has a much greater influence on material nonlinearity stability than on geometric nonlinearity stability, while the cable hoisting system only influences the value of the stability coefficient and does not influence its variation trend;④ The removal sequence of buckle anchor cables only influences the stability of the cable removal process, while the installation number of arch spacer plates influences the stability of the bare arch after the removal of all buckle anchor cables;⑤ The lateral movement of the lifting weight of the main hoisting system during construction can meet structural safety requirements.

Publication Date

10-29-2026

DOI

10.14048/j.issn.1671-2579.2026.05.015

First Page

145

Last Page

155

Submission Date

October 2026

Reference

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