[1]吕龙,薛小强.列车制动力对大跨度铁路斜拉桥地震响应影响[J].地震工程与工程振动,2018,(04):180-185.[doi:10.13197/j.eeev.2018.04.180.lvl.026]
 LV Long,XUE Xiaoqiang.Influence of train braking force on seismic response of long-span railway cable-stayed bridges[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2018,(04):180-185.[doi:10.13197/j.eeev.2018.04.180.lvl.026]
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列车制动力对大跨度铁路斜拉桥地震响应影响
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《地震工程与工程振动》[ISSN:/CN:]

卷:
期数:
2018年04期
页码:
180-185
栏目:
论文
出版日期:
2018-10-28

文章信息/Info

Title:
Influence of train braking force on seismic response of long-span railway cable-stayed bridges
作者:
吕龙 薛小强
成都理工大学 环境与土木工程学院, 四川 成都 610059
Author(s):
LV Long XUE Xiaoqiang
College of Environment and Civil Engineering, Chengdu University of Technology, Chengdu 610059, China
关键词:
大跨度铁路斜拉桥动力时程分析法地震响应列车制动力黏滞阻尼器
Keywords:
long-span railway cable-stayed bridgedynamic time history analysis methodseismic responsetrain braking forceviscous dampers
分类号:
U448.12+1
DOI:
10.13197/j.eeev.2018.04.180.lvl.026
摘要:
以一大跨度铁路斜拉桥为背景,根据高速列车制动模型,获得列车制动力,采用动力时程分析方法,分析列车制动力和地震共同作用及地震单独作用下斜拉桥结构响应,在此基础上,研究列车制动力作用对结构地震响应影响。结果表明,列车制动力作用对地震作用下梁端和塔顶位移影响较塔底剪力和弯矩大。当不设置黏滞阻尼器时,列车制动力对结构地震响应影响不显著;设置黏滞阻尼器后,列车制动力对梁端位移影响显著。
Abstract:
Based on a long-span railway cable-stayed bridge, the train braking forces were obtained by high speed train braking model. Dynamic responses of structure were analyzed under train braking and seismic loads, seismic loads according to dynamic time history analysis method, respectively. Based on this, the influence of train braking force on seismic response of the bridge was investigated. The results show that the effect of train braking force on the displacement of the beam and the top of the tower is greater than that of the shear force and the bending moment at the bottom of the tower. The influence of the train braking force on the seismic response of the bridge without connection systems between the beam and the tower is slight and that on the displacement of the beam of the bridge with viscous dampers is significant.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2018-03-17;改回日期:2018-05-27。
基金项目:四川省教育厅科研项目(18ZB0071);成都理工大学科研启动基金(10900-KYQD-06455)
作者简介:吕龙(1986-),男,讲师,博士,主要从事桥梁抗震和结构动力学研究.E-mail:lvlongs@126.com
更新日期/Last Update: 1900-01-01