高速铁路简支梁桥有载动力特性分析

ANALYSIS OF LOADED DYNAMIC CHARACTERISTICS OF SIMPLY SUPPORTED BEAM BRIDGES ON HIGH SPEED RAILWAY

摘要: 本文根据车-桥系统相互作用模型,推导了铁路简支梁桥竖向有载自振频率的计算公式,并给出了简便的计算方法,同时,还对不同跨度的简支梁桥的竖向有载自振频率进行了深入的研究.

Abstract: In this paper, the formula to calculate the natural frequencies of vertically loaded simply supported beam railway bridges is developed based on the vehicle-bridge system model. A simple and convenient algorithm is introduced. Besides, the free frequencies for the vertically loaded simply supported beam bridges with different spans are investigated.