摘要
人致荷载是指建筑物的使用者在完成步行、跳跃、奔跑、舞蹈、屈伸、突然起立/坐下、上下楼梯等动作时施加于支撑结构上的动力作用,可引起建筑楼盖、人行桥、长悬臂结构、体育看台、柔性楼梯等大跨轻柔工程结构的振动,严重时可导致结构的振动舒适度问题。人致荷载是人致结构振动问题工程设计与舒适度评估的重要基础。在总结人致荷载特点及其分类的基础上,以步行、跳跃荷载为主,介绍了人致荷载研究的现状和主要进展,分析了目前研究面临的试验和建模的挑战,并初步探讨了今后需要解决的一些问题。
Human-induced loads are dynamic actions exerted on supporting parts of structures by their users due to users＇ walking,jumping,running,dancing,bend and stretch,suddenly seating sown or standing up,and going up and down stairs to cause vibrations of long-span light and flexible engineering structures,such as,long-span floors,pedestrian bridges,long cantilevered structures,sports grandstands and flexible stairs; if those loads are serious,it may lead to vibration serviceability problems. Studying human-induced loads is an important foundation for structures ＇engineering design and comfort evaluation due to human-induced vibrations. Here,based on summarizing the characteristics of humaninduced loads and classifying them,the state-of-the-art studies and developments of human-induced loads were then reviewed,the loads due to human＇s walking and jumping were focused on,challenges of advanced test techniques and modeling faced by researchers were analyzed,the problems to be solved in future were discussed preliminarily.
出处
《振动与冲击》
EI
CSCD
北大核心
2017年第23期1-9,共9页
Journal of Vibration and Shock
基金
国家自然科学基金(51478346)
土木工程防灾国家重点实验室(SLDRCE14-B-16)
关键词
人致荷载
振动舒适度
大跨结构
综述
human-induced loads
vibration serviceability
long-span structures
literature review
