摘要
针对某单跨钢拱桥,基于子模型方法,利用有限元软件ANSYS先进行全桥整体分析,得出所需边界条件,继而对关键梁段进行精细化建模,根据实际荷载情况进行加载,分析了关键梁段的空间应力分布状态以及局部稳定性。结果表明:车行道与人行道关键梁段在最不利荷载工况作用下,其应力水平与稳定性均能满足规范要求。
Based on sub-model method,the finite element software ANSYS was used to analyze the whole structure of a single-span steel arch bridge.The essential boundary conditions were obtained,and the refined model of the key beam segments was built.Then the loads were loaded according to the actual situation.The distribution of spatial stress and local stability of the key beam segments were analyzed.The results show that under the most unfavorable working condition,the stress level and stability of the key beam segments of the roadway and sidewalk can meet the requirements of specifications.
作者
张志兴
邓长根
巩俊松
ZHANG Zhi-xing;DENG Chang-gen;GONG Jun-song(College of Civil Engineering,Tongji University,Shanghai 200092,China;China MCC20 Group Co.,Ltd.,Shanghai 201999,China)
出处
《科学技术与工程》
北大核心
2021年第20期8656-8662,共7页
Science Technology and Engineering
基金
国家自然科学基金(51678172)。
关键词
钢拱桥
子模型法
精细化模型
静力分析
稳定性分析
steel arch bridge
sub-model method
refined modeling
static analysis
stability analysis
