摘要
随着对于钢-混组合箱梁结构研究的深入开展,其在车辆荷载作用下的车桥振动响应问题也备受关注。不同截面形式对其车-桥相互作用性能有着较大影响。文章基于模态综合法的原理,建立两种不同截面形式的钢-混组合箱梁的动力计算模型,并对其动力特性进行了比较分析,结果表明:双车响应大致为单车响应的两倍,说明不同车辆荷载作用下桥梁的反应是线性的,为以后此类桥梁的设计提供参考。
As the development of study on steel-concrete composed box girder,its natural vibration under vehicle loading draws more and more attentions.Different types of cross sections have different influence on the interaction between vehicle and bridge.Based on the component mode synthesis principle,the article builds two different types of steel-concrete composed box girder model and performs comparison analysis on its dynamic property.The result shows that the coupling reactions for two vehicles are bigger than that for one vehicle.This indicates that the relationship between them is linear,which provides reference for future bridge design.
出处
《西部交通科技》
2011年第6期56-60,65,共6页
Western China Communications Science & Technology
关键词
钢-混组合箱梁
车桥耦合反应
自振特性
计算模型
Steel-concrete composed box girder
Coupling reaction
Natural vibration
Calculation model
作者简介
汪家正（1979-），男，陕西商洛人，主要从事市政和公路桥梁设计、咨询工作。
