天津海河大桥斜拉索塔锚固区应力分析  

On Stress Analysis of Cable-pylon Anchorage Zone of Haihe Bridge in Tianjin

作　　者：项敬辉[1] 华龙海[1] 李伟钊[2] 

机构地区：[1]天津市市政工程设计研究院,天津300457 [2]哈尔滨工业大学,黑龙江哈尔滨150001

出　　处：《中国市政工程》2011年第1期58-59,74,共3页China Municipal Engineering

摘　　要：由于斜拉索的局部强大集中力、预应力筋的锚固力以及孔洞削弱等因素,使该区域受力状态十分复杂,单纯的理论分析无法全面反映索塔锚固区实际的应力分布和变形情况,因此,斜拉桥索塔锚固区节段是设计和施工的难点和关键。以天津海河大桥为工程背景,利用ANSYS对索塔锚固区的受力特性进行空间应力有限元分析,据此提出相关结论和建议,为设计、施工和监控提供参考。Because of the factors such as the cable powerful local concentrated force,anchoring force of prestressed steels and the weakening of holes,the stress state at this area is very complicated.The simple theoretical analysis cannot present the practical stress distribution and deformation totally about the pylon anchorage zone.Therefore,pylon anchorage zone segment of the cable-stayed bridge is the difficulty and the key point of design and construction.With the background of Haihe Bridge in Tianjin,the spatial stress finite element analysis of stress characteristics is completed by using ANSYS software.And related conclusions and suggestions can provide reference for the design,construction and monitoring of similar projects.

关 键 词：斜拉桥 索塔锚固区 有限元 应力分析 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]