文献类型：期刊文献

中文题名：人行激励下预制装配式叠合楼板振动舒适度分析

英文题名：Comfortable analysis on prefabricated composite slabs under human-induced dynamic loads

作者：何余良[1];陈佳文[1];周仁甫[1];韩坚强[2];肖景平[3];杨赢[1]

机构：[1]绍兴文理学院,绍兴312000;[2]绍兴市建筑产业现代化促进中心,绍兴312000;[3]华汇工程设计集团股份有限公司,绍兴312000

年份：2020

期号：S02

起止页码：433

中文期刊名：建筑结构

外文期刊名：Building Structure

收录：CSTPCD、、北大核心2017、CSCD_E2019_2020、北大核心、CSCD

基金：浙江省基金“混杂纤维混凝土组合桥桥面板疲劳破坏机理及疲劳性能研究”(Y18E080056);2019年度浙江省建设厅科研项目(2019K149)

语种：中文

中文关键词：装配式叠合楼板;舒适度;自振频率;人行荷载

外文关键词：assemblycomposite slab;vibration comfortable;natural frequencies;pedestrian load

中文摘要：以绍兴锡麟中学图书馆综合楼的预制装配式叠合楼板为背景研究预制装配式叠合楼板在人行激励下的舒适性,根据预制叠合楼板的构造特点建立预制叠合楼板有限元模型,通过试验修正有限元模型,得到预制装配式叠合楼板的基准有限元模型。然后根据基准有限元模型的分析结果,对计算现浇楼板固有频率的公式进行了修正,得到叠合楼板固有频率的计算公式。最后对背景工程叠合楼板在不同人行荷载工况下的竖向振动舒适度进行了有限元模拟分析,利用美国AISC和中国规范分别对其进行了舒适度评价。结果表明:该图书馆综合楼满足舒适度要求;激励类型对叠合楼板竖向振动响应的影响大小依次为跳跃荷载、慢跑荷载和步行荷载,另外四人荷载工况比单人工况下的振动响应大,且随着步频增高楼板的振动响应增大。

外文摘要：Taking the prefabricated composite floor of Xilin Middle School Library in Shaoxing as the background,the comfort of prefabricated composite floor under pedestrian excitation was studied.According to the structural characteristics of prefabricated composite floor,the finite element model of prefabricated composite floor was set up.The accuracy of the finite element model was verified by experiments,and the basic finite element model of prefabricated composite floor was obtained.Then,according to the analysis results of the basic finite element model,the formula for calculating the natural frequency of cast-in-place floor slab was modified,and the formula for calculating the natural frequency of composite floor was obtained.Finally,the vibration comfort of the composite floor under different conditions of pedestrian load was simulated and analyzed by the basic finite element method.The comfort degree of the composite floor was evaluated by the American AISC and the Chinese standard.The results show that the library meets the requirements of comfort,and the effect of excitation type on the vertical vibration response of the composite floor is maximum for jumping load,and walking load is minimum.The vibration response of the four people is larger than that of the single case,and the vibration response of the floor increases with the increase of the step frequency.