提速列车通过小跨度桥梁橡胶支座横向位移试验与分析

Experimental Study on Transverse Displacements while a Train Passing Through a Short Span Bridge with Rubber Supports at a Raised Speed

用有限元桥梁横向振动理论并结合现场试验，对沪宁线采用板式橡胶支座的小跨度低高度钢筋混凝土板梁的横向振动位移进行分析，并提出了控制横向位移的对策，为确保这些桥梁适应提速的运营要求提供理论依据。

Based on the theory of bridge transverse vibration of finite element and the field experiments,the transverse displacements of the short span low height RC beams with rubber supports are analyzed,and the measures to control the displacements are worked out .The theoretical bases are presented to ensure that the bridges shall meet the needs of a train running at a raised speed.