市政技术2023，Vol.41Issue(12)：34-39,6.DOI:10.19922/j.1009-7767.2023.12.034
钢管混凝土拱梁组合桥拱脚构造设计及应力计算分析
Design and Stress Analysis of Arch Foot in CFST Arch-Beam Composite Bridge
程建旗 1沈侠伟 1鲁思宁1
作者信息
- 1. 浙江数智交院科技股份有限公司,浙江杭州 310006
- 折叠
摘要
Abstract
No.320 National Highway Bridge in Hangzhou,Zhejiang Province is a concrete filled steel tubular(CFST)arch-beam composite bridge with a single span of 161 m.the design features of arch foot,temporary hinge structure for construction,and crack prevention measures for arch foot concrete were introduced in detail.Then a solid element finite element model of the arch foot was established by ANSYS software to analyze the local stress.The results show that the principal tensile stress and principal compressive stress of the arch foot basically meet the specification requirements.And local stress concentration area exceeds the limit.The design of arch foot is optimized based on stress analysis results.The analysis results can provide reference for the design of similar bridges.关键词
钢管混凝土拱桥/拱梁组合结构/拱脚构造设计/应力计算分析Key words
concrete filled steel tubular(CFST)archbridge/arch-beam composite structure/design of arch foot/stress analysis分类
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程建旗,沈侠伟,鲁思宁..钢管混凝土拱梁组合桥拱脚构造设计及应力计算分析[J].市政技术,2023,41(12):34-39,6.
