简支梁桥抗震设计的探讨——以江苏宿迁桥抗震设计为例  

STUDY ON EARTHQUAKE-RESISTANCE OF SIMPLY-SUPPORTED GIRDER BRIDGE WITH EXAMPLE OF SUQIAN BRIDGE IN JIANGSU

作　　者：钱让清[1] 

机构地区：[1]安徽大学交通分校,合肥230051

出　　处：《岩石力学与工程学报》2004年第7期1229-1232,共4页Chinese Journal of Rock Mechanics and Engineering

基　　金：交通科技进步通达计划项目(2001-15和2003-41)资助课题。

摘　　要：介绍了采用橡胶支座的简支梁桥抗震计算的理论、方法及抗震措施,并以江苏宿迁桥抗震设计为例,分析纵桥向、横桥向地震作用力计算过程。计算结果显示,江苏宿迁桥在地震时下部由地震作用力控制,纵桥向、横桥向水平力均较大。研究结果显示, 桥梁设计应在详细的调查基础上,只有把合理的抗震设计和有效的抗震措施结合起来,才能收到好的效果。A calculation method of earthquake-resistance design of simply-supported girder bridge using rubber branch seats is proposed. With the example of the Suqian Bridge, the earthquake induced stresses in both vertical and horizontal directions are analyzed. The results show that the lower part of the bridge is controlled by earthquake induced stresses,with large vertical and horizontal stresses. It can be concluded that good bridge design can only be achieved through a combination of scientific design methods and effective earthquake-resistance measures.

关 键 词：简支梁桥 抗震设计 橡胶支座 横桥向水平力 纵桥向水平力 江苏 

分 类 号：U448.217[建筑科学—桥梁与隧道工程]