|Table of Contents|

Research on Response Spectrum CCQC Method Based on Viscous Damping Assumption(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2011年04期
Page:
55-62
Research Field:
Publishing date:
2011-12-20

Info

Title:
Research on Response Spectrum CCQC Method Based on Viscous Damping Assumption
Author(s):
LIU Qing-lin1;  FU Xue-yi2;  YANG Xian-qiao3
1. Bureau of Public Works of Shenzhen Municipality, Shenzhen 518031, Guangdong, China; 2. School of Civil Engineering, Shenzhen University, Shenzhen 518060, Guangdong, China; 3. China Construction(Shenzhen)Design International, Shenzhen 518048, Guangdon
Keywords:
viscous damping;  pseudo-excitation method;  response spectrum complex complete quadratic combination method;  stationary random vibration analysis
PACS:
TU311.3
DOI:
-
Abstract:
A pseudo-excitation method was used to deduce a new formula of original complex complete quadratic combination(OCCQC)method and its simplified form according to traditionally simplified complex complete quadratic combination(TCCQC). The results of TCCQC were compared with the results of stationary random vibration analysis based on complex damping assumption.The results show that the results of TCCQC of structures which have greater height to thickness ratio are much less, while the calculation results of OCCQC are in good agreement, which shows that OCCQC is more rational than TCCQC. Damping matrix based on viscous damping assumption interacts with results of complex modal analysis, so calculation results of response spectrum CCQC method are not unique and the rationality of results is difficult to be determined.If viscous damping matrix is properly constructed, calculation results of the response spectrum CCQC method based on viscous damping assumption will agree well with that of stationary random vibration analysis based on complex damping assumption, but constructing proper viscous damping matrix is a time-consuming and hard work.The response spectrum CCQC method based on viscous damping assumption is suggested only for structures where viscous damping type mechanical dampers are placed, otherwise the response spectrum CCQC method based on complex damping assumption is more convenient and efficient.

References:

[1] GB 50011—2010,建筑抗震设计规范[S]. GB 50011—2010,Code for Seismic Design of Buildings[S].
[2]周锡元,董 娣,苏幼坡.非正交阻尼线性振动系统的复振型地震响应叠加分析方法[J].土木工程学报,2003,36(5):30-36,45. ZHOU Xi-yuan,DONG Di,SU You-po.New Method for Linear Systems with Non-classical Damping Under Ground Motion[J].China Civil Engineering Journal,2003,36(5):30-36,45.
[3]ZHOU X Y,YU R F,DONG D.Complex Mode Superposition Algorithm for Seismic Responses of Non-classically Damped Linear MDOF System[J].Journal of Earthquake Engineering,2004,8(4):597-641.
[4]周锡元,马东辉,俞瑞芳.工程结构中的阻尼与复振型地震响应的完全平方组合[J].土木工程学报,2005,38(1):31-39. ZHOU Xi-yuan,MA Dong-hui,YU Rui-fang.Damping in Structures and Complete Quadratic Combination(CCQC)of Complex Mode Seismic Responses[J].China Civil Engineering Journal,2005,38(1):31-39.
[5]周锡元,俞瑞芳.非比例阻尼线性体系基于规范反应谱的CCQC法[J].工程力学,2006,23(2):10-17,9. ZHOU Xi-yuan,YU Rui-fang.CCQC Method for Seismic Response of Non-classically Damped Linear System Based on Code Response Spectra[J].Engin-eering Mechanics,2006,23(2):10-17,9.
[6]俞瑞芳,周锡元.具有过阻尼特性的非比例阻尼线性系统的复振型分解法[J].建筑结构学报,2006,27(1):50-59. YU Rui-fang,ZHOU Xi-yuan.Complex Mode Superposition Method for Non-classically Damped Linear System with Over-critical Damping Peculiarity[J].Journal of Building Structures,2006,27(1):50-59.
[7]DER KIUREGHIAN A.A Response Spectrum Method for Random Vibration Analysis of MDF Systems[J].Earthquake Engineering and Structural Dynamics,1981,9(5):419-435.
[8]CLOUGH R W,PENZIEN J.Dynamics of Structures[M].2nd ed.Berkeley:Computers and Structures,Inc.,2003.
[9]刘晶波,杜修力.结构动力学[M].北京:机械工业出版社,2005. LIU Jing-bo,DU Xiu-li.Dynamics of Structures[M].Beijing:China Machine Press,2005.
[10]DER KIUREGHIAN A.Structural Response to Stationary Excitation[J].Journal of the Engineering Mechanics Division,1980,106(6):1195-1213.
[11]DER KIUREGHIAN A,NAKAMURA Y.CQC Modal Combination Rule for High-frequency Modes[J].Earthquake Engineering and Structural Dynamics,1993,22(11):943-956.
[12]CACCIOLA P,COLAJANNI P,MUSCOLINO G.Combination of Modal Responses Consistent with Seismic Input Representation[J].Journal of Struc-tural Engineering,2004,130(1):47-55.
[13]刘庆林,傅学怡.基于复阻尼假定的不同材料阻尼特性混合结构抗震分析反应谱CCQC法[J].土木工程学报,2011,44(3):61-71. LIU Qing-lin,FU Xue-yi.A Response Spectrum CCQC Method for Seismic Analysis of Structures of Multiple Material Damping Characteristics Based on Complex Damping Assumption[J].China Civil Engin-eering Journal,2011,44(3):61-71.
[14]林家浩,张亚辉.随机振动的虚拟激励法[M].北京:科学出版社,2004. LIN Jia-hao,ZHANG Ya-hui.Pseudo-excitation Method for Random Vibration[M].Beijing:Science Press,2004.
[15]傅学怡.国家游泳中心水立方结构设计[M].北京:中国建筑工业出版社,2009. FU Xue-yi.Structural Design of National Swimming Centre Water Cube[M].Beijing:China Architecture & Building Press,2009.
[16]邱吉宝,向树红,张正平.计算结构动力学[M].合肥:中国科学技术大学出版社,2009. QIU Ji-bao,XIANG Shu-hong,ZHANG Zheng-ping.Computational Structural Dynamics[M].Hefei:University of Science and Technology of China Press,2009.
[17]孙景江,江近仁.与规范反应谱相对应的金井清谱的谱参数[J].世界地震工程,1990,8(1):42-48. SUN Jing-jiang,JIANG Jin-ren.Parameters of Kanai-Tajimi Spectrum Consistent with State Code[J].World Earthquake Engineering,1990,8(1):42-48.

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Last Update: 2011-12-20