自锚式缆索承重桥梁钢混结合部接触面应力分析  

Contact Surface Stress Analysis of the Steel-concrete Joint of Self-anchored Cable-supported Bridges

作　　者：李斐然 

机构地区：[1]河南省交通规划勘察设计院有限责任公司,郑州450052

出　　处：《武汉理工大学学报（交通科学与工程版）》2012年第5期980-983,共4页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：交通部西部交通建设科技项目资助(批准号:200631882350)

摘　　要：针对自锚式缆索承重桥梁结构体系自身的特点,提出了一种新型的钢混结合方式.以某跨海大桥为工程依托,基于有限元软件ANSYS建立了板实单元相结合的空间有限元模型,考虑了钢构件与混凝土之间的粘结滑移特征,通过分析不同构造下接触面的应力水平,研究自锚式缆索承重桥梁中钢梁与混凝土梁结合部的传力机理和应力分布特点.According to the characteristics of self-anchored cable-supported bridges, a new-style steel- concrete joint was porposed. Based on one sea-crossing bridge, a space finite element model that contains solid elements and shell elements was built by ANSYS. Meanwhile, the bond-slip behavior of steel and concrete is also taken into account. By the stress level analysis of severl different contact surfaces, the force transfer principle and stress distribution characteristics of the steel-concrete joint of self-anchored cable-supported bridges were studyed, which will help to design the steel-concrete joint of self-anchored cable-supported bridges.

关 键 词：自锚式 缆索承重桥梁 钢混结合 接触非线性 有限元 

分 类 号：U443.3[建筑科学—桥梁与隧道工程]