ANALYSIS OF LATERAL RIGIDITY LIMIT VALUE FOR STEEL TRUSS BRIDGE

摘要：

The train and the truss girder bridge are coupled together as one composite system. The truss girder bridge is idealized as an assemblage of finite truss element. The vehicle space vibration model of two-stage suspension is used; which has 21-degrees of freedom. The equations of the train and the truss girder bridges time varying system are set up by using the principle of total potential energy with stationary value in elastic system dynamics and the “set-in-right- positionrule for forming structural matrices. The lateral rigidity limit value –the permissible limit width/span ratio B/L of the steel truss bridge is analyzed in accordance with the analytic theories of vibration of train–bridge time varying system and comfort of drivers and passengers in train running through the bridges. Sperling value Wz and permissible limit values of bridge with-span ratio B/L are calculated, when the train pass through truss girder bridge.

关键词： Steel truss girder bridge lateral rigidity limit value train

作者: Shi-Ruo Yang Le Yang

作者单位: College of Civil Engineering and Mechanics,Central South University of Forestry and Technology,Chang Guang Hua School of management ,Peking University,Beijing 100012,P. R. China

会议类型: 国际会议

会议名称: The 4th Internatiuonal Symposium on Lifetime Engineering of Civil Infrastructure(第四届土木工程结构生命周期国际学术研讨会)

会议地点: 长沙

会议语种:英文

页码: 801-803

在线出版日期: 2009-10-26（万方平台首次上网日期，不代表论文的发表时间）