湖南大学学报（自然科学版）2017，Vol.44Issue(1)：47-53,7.DOI:10.16339/j.cnki.hdxbzkb.2017.01.007
随机车流作用下大跨度悬索桥振动分析∗
Vibrations of a Long-span Suspension Bridge under Stochastic Traffic Flows
摘要
Abstract
A cellular Automaton (CA)model was introduced to simulate stochastic traffic,an 18 degrees-of-free-doms (DOFs)vehicle model was used to simulate a heavy truck,and a single DOF vehicle model was used to simulate other typed vehicles in traffic.The simulating stochastic traffic can be improved by considering the influence of the nearest neighbor vehicle.The coupled equations of bridge and vehicles in traffic flows were established by combining the equations of the motion of both the bridge and vehicles using the displacement relationship and interaction force re-lationship.The simulations show that the effect of considering the nearest neighbor vehicles on the maximal vertical displacement of bridge is significant,and the dynamic vibration of the main beam and tower under stochastic traffic flows cannot be neglected.关键词
桥梁/振动/车流/桥面不平整度Key words
bridge/vibration/traffic/bridge road surface分类
建筑与水利引用本文复制引用
殷新锋,丰锦铭,刘扬,蔡春声..随机车流作用下大跨度悬索桥振动分析∗[J].湖南大学学报（自然科学版）,2017,44(1):47-53,7.基金项目
国家重点基础研究发展(973)计划资助项目(2015CB05770002),National Program on Key Basic Research Project (973 Pro-gram) （973）
湖湘青年英才支持计划项目(2015RS4052),Foundation of Hunan Provincial Youth Talent(2015RS4052) （2015RS4052）
湖南省大学生研究性学习和创新性实验计划项目资助,College Students'Learning and Innovation Experimental Project of Hunan Province （）
