摘要
以丹大快速铁路花园口1号连续梁桥为研究对象,采用ANSYS有限元软件分析了行波效应对连续梁桥墩底应力和墩间最大相对位移的影响,通过加载同强度等级的不同地震波,寻找响应结果的数值之间存在差异性的原因。研究结果表明:在同强度等级不同地震波的非一致激励下,桥梁墩底应力及墩间最大相对位移的响应存在离散性;行波效应对连续梁桥墩底应力和墩间最大相对位移的影响明显。
Using Dandong-Dalian Railway Garden No. 1 fast continuous girder bridge as the research object, using ANSYS finite element analysis software we analyzed the impact of the stress on a bridge pier＇s bottom and the maximum relative displacement between two piers by considering traveling wave effect, by loading the same intensity level and different seismic waves, we found the reason why there are differences between results of the numerical response. The results showed that： by loading the non-u- niform and the same intensity levels of different seismic waves, the stress of a bridge pier and the maxi- mum relative displacement between two piers existed discrete nature; traveling wave effect brought signif- icant impact on the stress of a brought pier＇ s bottom and the maximum relative displacement between the piers.
出处
《低温建筑技术》
2014年第7期75-78,共4页
Low Temperature Architecture Technology
关键词
连续梁桥
行波效应
相对位移
离散性响应
continuous beam bridge
traveling wave effect
relative displacement
discrete response
