Study on Calculation Method of Dynamic Response of Structure Subjected to Harmonic Load
This paper puts forward pseudo-response spectrum method for calculating the dynamic response of structure caused by harmonic load on the floor, and proposes to use frequency ratio as a new modal truncation index.Combined with engineering practice, the analysis results of pseudo-response spectrum method were compared with the results of existing dynamic coefficient method and elastic time-history method.The contrast results show that dynamic coefficient method due to lacking of considering dynamic properties enough was not able to meet the real response and could not evaluate the comfort of the vibration.The results of pseudo-response spectrum method with suitable mode combination method have the same law of the maximum enveloping value as elastic time-history method.This proved that pseudo-response spectrum method is reasonable, safe and economical, which can provide the basis for engineering design.
Harmonic load Pseudo-response spectrum method Modal truncation Mode superposition
Yun-xiang LU Ze-fang LOU Bo LIU Xiao-cheng PAN
Guizhou Construction Scientific Research Testing Center,Guiyang 550006,P.R.China Wuhan Architectural Design Institute,Wuhan 430014,P.R.China China Railway West-North Scientific Research Institute,Lanzhou 730000,P.R.China
国际会议
上海
英文
70-75
2012-10-19（万方平台首次上网日期，不代表论文的发表时间）