Experimental study and comfort analysis of a new-type precast assembly floor under human-induced loads

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• 作者：Chongfang Sun ; Shuting Liang ; Xiaojun Zhu
• 关键词：new ; type floor ; peak acceleration ; natural frequency ; comfort ; human ; induced loads
• 刊名：KSCE Journal of Civil Engineering
• 出版年：2016
• 出版时间：November 2016
• 年：2016
• 卷：20
• 期：7
• 页码：2868-2874
• 全文大小：1,299 KB
• 刊物类别：Engineering
• 刊物主题：Civil Engineering
  Industrial Pollution Prevention
  Automotive and Aerospace Engineering and Traffic
  Geotechnical Engineering
  
• 出版者：Korean Society of Civil Engineers
• ISSN：1976-3808
• 卷排序：20

文摘

In this paper, we have studied the comfort of a newly-designed precast assembly floor evaluated by acceleration response under human-induced loads. The influences of five cases including different rows of connectors, walking frequency, population size, walking route and distribution of people on the response of the floor are discussed. The results are as follows. The removed connectors at the middle span produce greater effect according to the influence of different rows of connectors. Greater walking frequency produces greater effect according to the influence of walking frequency. Larger population size produces greater effect according to the influence of population size. Walking in the direction perpendicular to the longitudinal direction of slabs and through the low-order mode center produces greater effect according to the influence of walking route. The case that people are distributed on both of the two conventional slabs produces greater effect according to the influence of distribution of people. For all the cases, their influence degrees are in the order of different rows of connectors, walking frequency, distribution of people, walking route, and population size. Finally, basing on the five cases and according to the Chinese design specification on the natural frequency and peak acceleration, the authors analyzes the comfort of the floor by selecting the most unfavorable condition, and verifies that it satisfies the terms in the specification. The newly-designed floor can be used in the future design of buildings.