摘要
建立了预应力混凝土连续梁桥悬臂施工期间整体稳定性可靠度分析模型 ,该模型突破了传统将支座视为理想铰支的简化方法 ,倾覆失效时考虑了偏心受压 ,使设计更为合理 ,并就此模型对各设计变量及参数作了较全面的分析 。
In this paper the authors establish an reliability analytical model of the global stability during the cantilever construction period of prestressed concrete continuous bridges. It improves the simplified method, which takes bearing as ideal hinge traditionally, and at the same time eccentric compression is considered when the overturning failure happens, hence the design becomes more reasonable. According to this model, some design variables and parameters are analysed and discussed more completely in order to study the influences they bring on the global stability of bridges.
出处
《长沙交通学院学报》
2002年第1期26-29,共4页
Journal of Changsha Communications University
基金
国家自然科学基金资助项目 (5 0 1780 11)
关键词
预应力混凝土连续梁桥
悬臂施工
倾覆失效
偏心受压
可靠指标
prestressed concrete continuous bridge
cantilever construction
overturning failure
eccentric compression
reliability index
