悬挂式单轨轨道梁桥在列车制动力作用下的动力响应
王江浩
Dynamic Responses of Suspended Monorail Beam Bridge under Train Braking Forces
WANG Jianghao
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作者信息:中铁第六勘察设计院集团有限公司，300308，天津
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Affiliation:China Railway Liuyuan Group Co., Ltd., 300308, Tianjin, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2021.06.009
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中图分类号/CLCN:U441+.7：U234
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栏目/Col:研究报告
摘要:
以中唐悬挂式单轨试验线为依托，采用有限元软件建立结构模型，分别计算了3种列车制动力作用下轨道梁桥的动力响应。结果表明：在列车制动力作用下，轨道梁梁端纵向位移和墩底剪力呈波浪式增大；列车在轨道梁上制动完成时，轨道梁在纵向呈衰减振动；列车制动力越大，轨道梁梁端纵向位移、速度、加速度和墩底剪力也越大，并且列车制动完成后的振幅也越大。
Abstracts:
Taking the Zhongtang suspended monorail test line as the background, finite element software is adopted to build structure model, the dynamic responses under three kinds of train braking forces are calculated respectively. The results show that, under train braking forces, the longitudinal displacement of the track beam and the bottom shear of bridge pier increase in wave form; attenuation vibration appears in longitudinal direction on track bream when train braking completes on it; with the increase of braking force, the longitudinal displacement, velocity, acceleration of the track beam and bottom shear of bridge increase, and the amplitude of the track beam increases after the train braking is completed.
引文 / Ref:
王江浩.悬挂式单轨轨道梁桥在列车制动力作用下的动力响应[J].城市轨道交通研究，2021，24（6）：39.
WANG Jianghao.Dynamic Responses of Suspended Monorail Beam Bridge under Train Braking Forces[J].Urban mass transit，2021，24（6）：39.
WANG Jianghao.Dynamic Responses of Suspended Monorail Beam Bridge under Train Braking Forces[J].Urban mass transit，2021，24（6）：39.
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