摘要
本文建立刚架拱桥简化动力分析模型、双轴车辆模型和伪随机路面模型,旨在研究某刚架拱桥斜撑加固前后动力性能变化,并与加固前后实桥检测结果加以比较。研究表明,加固前后刚架拱桥的动力特性发生某种规律性变化,可用于提示刚架拱桥的衰变、损坏程度,以及验证其加固效果。
Dynamic analysis models,including bridge,vehicle and road surface,has been build to investigate the differences of dynamic behavior before and after a bracing strut strengthening of a rigid frame arch bridge.Compared with bridge site tests,the study indicates that the changes of dynamic characteristics have a certain degree of regularity,which can be used to reveal the fading and failure of rigid frame arch bridges and evaluate their reinforce effect.
出处
《福建建筑》
2010年第5期130-132,137,共4页
Fujian Architecture & Construction
基金
福建省交通科技发展项目
关键词
刚架拱桥
加固前后
动力特性
车振性能
桥梁检测
Rigid frame arch bridge Pre and post strengthening Dynamic behavior Vehicle-induced vibration performance Bridge site test
