摘要
沈阳市东塔桥为采用格构式钢桥塔钢箱梁的自锚式悬索桥。为减小地震效应,该悬索桥设置了黏滞阻尼器。本文以该桥为研究对象,建立全桥的动力计算模型,对此桥的动力特性进行计算分析,同时对比有阻尼器及无阻尼器下的动力响应,分析相应工况下的减震率,研究黏滞阻尼器对该桥抗震性能的影响。
Shenyang East Tower Bridge is a self-anchored suspension bridge with steel box girder of lattice steel tower.In order to reduce the seismic effect,the suspension bridge is equipped with viscous dampers.This paper takes the bridge as the research object,establishes a dynamic calculation model of the full bridge,and calculates and analyzes the dynamic characteristics of the bridge,and compares the dynamic response with and without dampers,analyzes the damping rate under corresponding working conditions,and studies the effect of viscous dampers on the seismic performance of the bridge.
作者
董成
DONG Cheng(Shenyang Municipal Engineering Design&Research Institute Co.,Ltd.,Shenyang Liaoning 110015)
出处
《河南科技》
2021年第14期77-79,共3页
Henan Science and Technology
关键词
自锚式悬索桥
时程分析
黏滞阻尼器
self-anchored suspension bridge
time history analysis
viscous damper
