基于振动舒适度要求的轻钢泡沫混凝土组合楼板基频分析  

Fundamental frequency analysis of light steel foam concrete composite floor slab based on vibration comfort requirement

作　　者：陈明雪 徐强 方纪明 杨茗皓 杨树旺 张振辉 Chen Mingxue;Xu Qiang;Fang Jiming;Yang Minghao;Yang Shuwang;Zhang Zhenhui(Dezhou Dongfang Yingbao United Technology Co.Ltd,Dezhou 253000,China;College of Architecture and Engineering,Liaocheng University,Liaocheng 252000,China;Liaocheng City Construction Engineering Quality Service Assurance Center,Liaocheng 252000,China)

机构地区：[1]德州东方英宝联合技术有限公司,山东德州253000 [2]聊城大学建筑工程学院,山东聊城252000 [3]聊城市建设工程质量服务保障中心,山东聊城252000

出　　处：《建筑科学》2025年第1期160-169,共10页Building Science

摘　　要：由于对建筑品质的要求越来越高,在设计过程中除了关注承载力、挠度等指标外,振动舒适度问题逐渐成为设计关注的主要内容,而基频是评价振动舒适度的指标之一。因此,本文以轻钢泡沫混凝土(LSFC)组合楼板为研究对象,通过锤击法试验、有限元分析、理论计算进行基频研究。研究结果表明:在LSFC组合楼板的实际工程中可以控制其基频在15Hz,以满足对振动舒适度的要求;在泡沫混凝土密度一定的条件下,LSFC组合单板的基频随着跨度的增加而降低;在跨度一定的条件下,LSFC组合单板的基频随着泡沫混凝土密度的增加而降低;在跨度分别为2m、2.5m、3m、3.5m,泡沫混凝土密度相对应为1650kg/m^(3)、1150kg/m^(3)、850kg/m^(3)、650kg/m^(3)时,试件的基频在15Hz左右,满足振动舒适度的要求。研究结果可为该类楼板的基频计算及振动舒适度设计提供参考和依据。Due to the increasing demand for building quality,in the design process,in addition to the concern for bearing capacity,deflection and other indicators,the vibration comfort problem has gradually become the main content of design concerns,and the fundamental frequency is one of the indicators for evaluating the vibration comfort.Therefore,this paper takes light steel foam concrete(LSFC) composite floor slab as the research object,and carries out the fundamental frequency study through hammering method test,finite element analysis,and theoretical calculation.The results show that the fundamental frequency of LSFC composite floor slab can be controlled at 15Hz to meet the requirements of vibration comfort;under the condition of a certain density of foam concrete,the fundamental frequency of LSFC composite single slab decreases with the increase of span;under the condition of a certain span,the fundamental frequency of LSFC composite single slab decreases with the increase of foam concrete density;when the span is 2m,2.5m,3m and 3.5m respectively,the relative foam concrete density should be 1650kg/m^(3),1150kg/m^(3),850kg/m^(3)and 650kg/m^(3),and the fundamental frequency of the specimen is around 15Hz,which to meet the requirement of vibration comfort.The results of the study provide a reference and basis for fundamental frequency calculation and vibration comfort design of the type of floor slab.

关 键 词：轻钢泡沫混凝土组合楼板 基频 振动舒适度 

分 类 号：TU398[建筑科学—结构工程]