斜拉桥钢混结合部位力学性能分析  

Analysis for Mechanical Performance of Reinforcement-Concrete Binding Part in Cable-stayed Bridges

作　　者：陶小兰[1] 姚建军[1] 

机构地区：[1]招商局重庆交通科研设计院有限公司,重庆400067

出　　处：《公路交通技术》2011年第3期75-79,共5页Technology of Highway and Transport

摘　　要：钢混结合部位的设计是混合梁斜拉桥设计中最为关键的环节之一,该部分结构构造复杂,材料的差异性使得应力集中现象极易产生,是结构的薄弱部位。根据工程实例简单介绍斜拉桥钢混结合部位的设计要点及传力途径,并采用有限元分析方法对其局部力学性能进行分析,真实反映结合部位混凝土梁和钢箱梁的应力分布情况。The design of reinforcement-concrete binding part is one of the most significant components in design of hybrid girder cable-stayed bridges since this part is weak in structure for complicated construction and stress concentration easily generated due to difference of materials.Based on the project examples,this paper briefly introduces design key points and force transmitting modes of reinforcement-concrete binding part of cable-stayed bridges,and analyzes its local mechanical performance by means of finite element analysis method to reflect stress distribution of concrete beams and steel box girders at binding part accurately.

关 键 词：钢混结合部位 混合梁 传力途径 应力分析 有限元分析 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]