典型文献
Vibration Serviceability of Large-Span Steel-Concrete Composite Beam with Precast Hollow Core Slabs Under Walking Impact
文献摘要：
A large-span steel-concrete composite beam with precast hollow core slabs(CBHCSs)is a relatively new floor structure that can be applied to various long-span structures.However,human-induced vibrations may present serviceability issues in such structures.To alleviate vibrations,both the walking forces excited by humans and the associated floor responses must be elucidated.In this study,150 load-time histories of walking,excited by 25 test participants,are obtained using a force measuring plate.The dynamic loading factors and phase angles in the Fourier series functions for one-step walking are deter-mined.Subsequently,walking tests are performed on seven CBHCS specimens to capture the essential dynamic properties of mode shapes,natural frequencies,damping ratios,and acceleration time histories.The CBHCS floor system generally exhibits a high frequency(＞10 Hz)and low damping(damping ratio＜2％).Sensitivity studies using the finite element method are conducted to investigate the vibration performance of the CBHCS floor system,where the floor thickness,steel beam type,contact time,and human weight are considered.Finally,analytical expressions derived for the fundamental frequency and peak acceleration agree well with the experimental results and are hence proposed for practical use.
文献关键词：
中图分类号：
作者姓名：
Jiepeng Liu;Shu Huang;Jiang Li;Y.Frank Chen
作者机构：
School of Civil Engineering&Key Laboratory of New Technology for Construction of Cities in Mountain Area,Ministry of Education,Chongqing University,Chongqing 400045,China;Central-South Architectural Design Institute Co.,Ltd.,Wuhan 430071,China;Department of Civil Engineering,The Pennsylvania State University,PA 17057,USA
文献出处：
引用格式：
[1]Jiepeng Liu;Shu Huang;Jiang Li;Y.Frank Chen-.Vibration Serviceability of Large-Span Steel-Concrete Composite Beam with Precast Hollow Core Slabs Under Walking Impact)[J].工程（英文）,2022(12):93-104
A类：
Serviceability,Precast,Slabs,CBHCSs,CBHCS
B类：
Vibration,Large,Span,Steel,Concrete,Composite,Beam,Hollow,Core,Under,Walking,Impact,large,span,steel,concrete,composite,beam,precast,hollow,core,slabs,relatively,new,floor,that,can,applied,various,long,structures,However,induced,vibrations,may,present,serviceability,issues,such,To,alleviate,both,walking,forces,excited,by,humans,associated,responses,must,elucidated,In,this,study,histories,participants,are,obtained,using,measuring,plate,dynamic,loading,factors,phase,angles,Fourier,series,functions,one,step,deter,mined,Subsequently,tests,performed,seven,specimens,capture,essential,properties,mode,shapes,natural,frequencies,damping,ratios,acceleration,system,generally,exhibits,high,frequency,Sensitivity,studies,finite,element,method,conducted,investigate,performance,where,thickness,type,contact,weight,considered,Finally,analytical,expressions,derived,fundamental,peak,agree,well,experimental,results,hence,proposed,practical,use
AB值：
0.62918
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机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
