人致荷载作用下楼层网架结构舒适度研究*
- 摘 要
-
(1 天津大学建筑工程学院，天津 300072； 2 天津大学滨海土木工程结构与安全教育部重点实验室，天津 300072)
［摘要］以钢网架和组合网架为例，基于拟夹层板法理论分析和数值模拟相结合的方法，提出了人致荷载作用下楼层网架结构的动力响应计算方法，分析了步行、跳跃荷载作用下楼层网架结构的加速度响应，得到了楼层网架结构基频在2.5～8Hz范围内时的最大加速度响应变化规律，并给出了其满足舒适度要求的频率限值。［关键词］网架结构; 舒适度; 拟夹层板法; 人致荷载中图分类号：TU393.3 文献标识码：A 文章编号：1002-848X(2015)16-0035-05
Comfort study of floor space truss structure under human-induced loadsHan Qinghua1,2, Zhao Yifeng1, Lu Yan1,2, Lu Peng1(1 School of Civil Engineering, Tianjin University, Tianjin 300072, China; 2 Key Laboratory of Coast Civil Structure Safety, Ministry of Education, Tianjin University, Tianjin 300072, China)Abstract: Taking steel space truss and composite space truss as examples, the dynamic response calculation method of floor space truss structure under human-induced loads was proposed based on the equivalent sandwich plate method theoretical analysis and numerical simulation method. The acceleration response of the structure was analyzed under human walking and jumping loads. The changing law of the maximum acceleration response of the structure was obtained when the natural frequency of the structure ranges from 2.5Hz to 8.0Hz, and limit frequency was proposed to fulfill the comfort requirement.Keywords: space truss structure; comfort; equivalent sandwich plate method; human-induced load
*教育部博士点基金(20130032110044)，国家自然科学基金(51308386)。通讯作者：芦燕，讲师，Email: yanlu86@tju.edu.cn。
