协作体系斜拉桥结构受力特性及其高跨比探讨  

On exploration for stressed features of cable-stayed bridge in cooperative system and its high-span ratio

作　　者：张一卓[1] 

机构地区：[1]天津市市政工程设计研究院,天津300051

出　　处：《山西建筑》2012年第25期202-203,共2页Shanxi Architecture

摘　　要：通过对比协作体系斜拉桥与非协作体系斜拉桥在可变荷载作用下的荷载效应,分析协作体系斜拉桥的结构受力的特点,提出现阶段交通状况下协作体系斜拉桥应以协作跨增加的刚度去适应重载及超载的运营条件。By comparing the loading effect of the cable-stayed bridge of the cooperative system and the cable-stayed bridge in the non-cooperative system under the variable loading effect,analyzes the features of the structural stress of the cable-stayed bridge in the cooperative system,and points out the cable-stayed bridge in the cooperative system should adhere to the operation conditions of the heavy-loading and the overloading with the increased stiffness of the cooperative span.

关 键 词：斜拉桥 协作体系 协作跨 跨中弯矩 塔顶位移 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]