【摘要】 本文以湖南常德张家港斜拉桥背景,利用有限元软件midas建立结构计算分析模型,对桥梁进行结构应力和结构稳定分析,得出了主梁,索塔和斜拉索在各极限状态下的应力分布情况以及桥梁的失稳模态,自振特性和抗震承载能力,并与现行规范进行了比较,各项数据均满足规范要求.本文的分析结果为桥梁的日常运营和后期的安全评估提供了重要依据.更多还原

【Abstract】 This paper analyzed the structural stress and structural stability of the Zhangjiagang large-span cable-stayed bridge which is located in Changde,Hunan by using the finite element software MIDAS. Based on the structural calculation and analysis model,we get the stress distribution of bridge in the limit state and the seismic bearing capacity of bridge. The analysis data all meet the standard requirements. The analysis results of this paper provide important basis for the daily operation and safety assessment of the bridge.更多还原