空心圆端型桥墩动力弹塑性分析  

作　　者：李文武[1] 

机构地区：[1]大连理工大学土木建筑设计研究院有限公司,辽宁大连116024

出　　处：《黑龙江科技信息》2013年第12期218-219,共2页Heilongjiang Science and Technology Information

摘　　要：针对桥墩常用的空心圆端型截面,选取不同的壁厚,采用非线性时程方法对(28+35+28)m三跨连续梁桥进行动力弹塑性分析,分别得到桥墩弹塑性铰转角、墩底剪力、墩底弯矩、墩顶位移时程,结果表明,空心截面壁厚取0.6m时,桥墩还能承受更强的地震。On the commonly used hollow round end-section, adopting different wall-thickness, the author makes a dynamic elasto- plastic analysis to three-span continuous beam bridge which covers the area of （28＋35＋28） m by means of nonlinear time-history ap- proach. According to the a series of calculated statistics about hinge comer, end of pier shear, pier-end bending moment, pier top dis- placement time history, the author reaches the conclusion that pier could still withstand more damaging earthquake if the wall-thickness of hollow section is of 0.6m.

关 键 词：空心圆端型截面 非线性时程方法 动力弹塑性分析 

分 类 号：U443.22[建筑科学—桥梁与隧道工程]