简支变连续梁桥中墩双排支座反力重分配现象分析  

Analysis on Double-row Bearing Force Redistribution of Bridge Simple-supported System into Continuous System

作　　者：曹淑上[1] 陈岗 

机构地区：[1]重庆市建筑科学研究院,重庆400015 [2]济南市房产测绘研究院,山东济南250001

出　　处：《现代交通技术》2009年第6期33-35,共3页Modern Transportation Technology

摘　　要：通过对简支变连续梁桥的施工过程进行分析,确定了其徐变次内力的计算方法,分析了徐变效应对双排橡胶支座支承反力的影响及双排支座支承反力重分配现象。最后,通过实例分析,得到了一些重要的结论。By analyses the construction process of a bridge transformed from simple-supported system into continous system, this paper calculates it′s creep secondary internal forces, the effects of creep on bearing force from double rubber bearing and it ′ s bearing force redistribution are analyses . At alst an examples is introduced and some important conclusions are got.

关 键 词：简支变连续梁桥 徐变次内力 十力重分配 

分 类 号：U448.215[建筑科学—桥梁与隧道工程]