摘要
综合对比国内外人行桥规范关于人致振动舒适性的荷载模型和评价指标,并以一座大跨径人行钢拱桥为例,利用有限元分析软件MIDAS/Civil建立有限元模型,分析其动力特性,参考德国人行桥设计指南(EN03)进行人行舒适度评估,并根据评估结果设计了相应的TMD(调谐质量阻尼器)减振系统,采用TMD消能减振系统后,各工况下桥梁的人致振动峰值加速度均达到规范"最好"的级别,满足振动舒适性要求。
Comprehensively compare the load model and evaluation index of human-induced vibration comfort in the domestic and foreign footbridge specifications, and take a large-span pedestrian steel arch bridge as an example, and use the finite element analysis software MIDAS/Civil to establish a finite element model and analyze its dynamic characteristics. Refer to the German Footbridge Design Guide (EN03) for pedestrian comfort assessment, and design the corresponding TMD (tuned mass damper) damping system based on the evaluation results. After using the TMD energy dissipation system, the bridge people under various working conditions The peak vibration acceleration reaches the "best" level of the specification, meeting the vibration comfort requirements.
作者
费梁
FEI Liang(Architects & Engineers Co., Ltd. of Southeast University,Nanjing,Jiangsu 210096,China)
出处
《黑龙江交通科技》
2018年第12期127-129,131,共4页
Communications Science and Technology Heilongjiang
关键词
人行桥
人致振动
舒适度
减振
TMD
footbridge
human vibration
comfort
vibration reduction
TMD
