长沙理工大学学报（自然科学版）2016，Vol.13Issue(1)：49-55,7.
车桥耦合系统的非线性动力响应分析
Analysis of the nonlinear dynamic behavior of the bridge under moving load system
摘要
Abstract
Considering the surface irregularities of the bridge and nonlinear influence,ac-cording to D'Alembert's principle,the basic dynamic equations of vehicle-bridge interaction system are formulated.With the application of modal analysis method,the nonlinear dy-namic equations are deduced using generalized coordinates.By Runge-Kutta methods and Visual Fortran program,the displacement response curves of the beam bridge and the curves of impact effect are obtained.The nonlinear dynamic influence on beam bridges is calculated considering the change of system parameters.According to the results,the non-linear influence on beam bridges is changed with the change of parameters,including span, flexural stiffness,velocity of vehicle and surface roughness.关键词
梁桥/移动荷载系统/非线性/动力响应Key words
beam bridge/moving load system/nonlinear/dynamic response分类
交通工程引用本文复制引用
谭子翼,唐雪松,盛国刚..车桥耦合系统的非线性动力响应分析[J].长沙理工大学学报（自然科学版）,2016,13(1):49-55,7.基金项目
湖南省自然科学基金资助项目(11JJ3013) （11JJ3013）
