铁路桥梁墩台极限承载力计算模式的选取  

CHOICE OF CALCULATION METHOD OF LIMIT BEARING CAPACITY FOR RAILWAY BRIDGE PIER AND ABUTMENT

作　　者：李方志[1] 季文玉[1] 许克宾[1] 

机构地区：[1]北方交通大学,北京100044

出　　处：《铁道工程学报》1999年第3期26-29,共4页Journal of Railway Engineering Society

摘　　要：本文采用现行混凝土及石砌体极限承载力的两种计算模式，对现行标准设计不同截面（矩形、圆形和圆端形）的混凝土桥墩及石砌桥墩进行了比较计算。结果表明，截面受压区应力成矩形分布的方案概念明确，符合设计习惯，且计算结果与现行《桥规》接近，能体现“转轨”原则。Two kinds of calculation methods of the limit bearing capacity of the concrete members and the stone filled members were calculated and compared by the current standard design in which different shape of cross seciton members were considered.The results show that the method number one whose stress of the compressed region of the cross section is assumed to be distributed in a rectangular shape has a clear meaning,is in accord with the habit of design and close to the current bridge code.It reflects the rules of the changing of the code and could be recommended.

关 键 词：极限承载力 铁路桥 桥墩 桥台 计算 

分 类 号：U448.131.2[建筑科学—桥梁与隧道工程] U448.133.2[交通运输工程—道路与铁道工程]