基于ANSYS的索锚管式锚固区应力分析  

Stress Analysis of Anchorage for Anchor Pipe Structure Zone Based on ANSYS

作　　者：莫山峰[1] 李文武[1] 戎华钦[1] 

机构地区：[1]大连理工大学建设工程学部,辽宁大连116024

出　　处：《山东交通学院学报》2011年第3期57-60,共4页Journal of Shandong Jiaotong University

摘　　要：针对索锚管式锚固区构造复杂、应力集中的特点,采用大型有限元分析软件ANSYS对索锚管式锚固结构进行计算分析。研究表明:吊杆力主要靠索锚管与拱肋横隔板之间的2条焊缝传递;索锚管承压板处应力集中现象明显,增加焊缝长度可以在一定程度上缓解锚固区应力集中现象;设置单锚管,锚固区应力集中现象明显,设置采用双锚管可以有效缓解锚固区的应力集中现象。The anchorage zone for anchor pipe structure of arc bridge is characterized by complexity and stress concentration.Stress analysis of anchorage zone is analyzed through ANSYS and the results reveal that： the cable force is mainly transferred by two welds between arch rib diaphragm and anchor pipe;stress concentration mainly happens on bearing plate;by increasing the welds length,the stress concentration can be reduced;with a single anchor pipe,the stress concentration of the anchorage zone becomes obvious and double anchor pipe layout can effectively alleviate stress concentration.

关 键 词：索锚管 有限单元法 焊缝长度 应力集中 

分 类 号：U448.22[建筑科学—桥梁与隧道工程]