Influence Analysis of Different Structural Parameters on Seismic Performance of Low-rise Lightweight Steel Buildings

Zhou Xuhong, Yao Xinmeilf, Guan Yu, Shi Yu

Abstract

 In order to investigate the influence of different structural parameters on the seismic performance of low-rise lightweight steel buildings，the finite element model of lightweight steel building was established by ABAQUS based on the experimental results. It shows that the finite element analysis results，in terms of fundamental frequency，acceleration and displacement responses，agree well with the experimental results. Furthermore，a parametric study based on the verified model under 9-degree frequent occurring and maximum considered earthquakes was carried out. The results show that the increase of the sheathing number and adding diagonal bracing can improve the fundamental frequency，acceleration and displacement responses of buildings，but the change of the sheathing material has little effect on it; the wall opening ratio has obvious effect on the structural response of the building under earthquake. Thus，the wall opening ratio should not be greater than 29.09%; decreasing the aspect ratio and choosing regular plan layout of lightweight steel buildings result in the increase of the natural frequency and decrease of the acceleration response and displacement response.

   

 

Keywords:  low-rise lightweight steel building,  shaking table tests,  dynamic characteristics,  seismic behavior,  finite element analysis


Full Text:

PDF


References


PENG X, YANG N, WANG B, et al. Experimental, research and simulation on lipped channel under axial compression [j]. Journal of Hunan University (Natural Sciences) ,2013 ,40 (8):34—39. (in Chinese )

ZHAO Y J, DU Z Y, ZHANG Q L. Analysis of the bearing capacity of cold—formed steel quadruple limbs built-up members under flexural loading [ j]. Journal of Hunan University (Natural Sciences) , 2012,39( 11) :,28—34. (in Chinese)

LI Y Q,LIU F,SHEN Z Y,ei al. Shaking table test on a full-scale model of low —rise high —strength cold —formed thinwalled steel framing buildings [ j]. Journal of Building Structures ,2013,34( l ) : 36—43. (In Chinese )

LI Y Q,SHEN Z Y,YA0 X Y, et al. Experimental investigation and design method research on low-rise cold—formed thinwalled steel framing buildings [j]. Journal of Structural Engineering, 2013,139

(5): 818—836.

HUANG Z G,SU M Z,HE В K, et al. Shaking table test on seismic behaviors of three —story cold —formed thin —wall steel residential buildings [ J]. China Civil Engineering Journal,2011,44(2):72— 81. (in Chinese)

PETERMAN К D, STEHMAN M J, MADSEN R L, et al. Experimental seismic response of a full—scale cold—formed steel—framed building I: system—level response [j]. Journal of Structural Engineering, 2016,142(12):04016127.

PETERMAN К D, STEHM AN M J, MADSEN R L, et al. Experimental seismic response of a full-scale cold—formed steel—framed building II:subsystem—level response [ J]. Journal of Structural Engineering, 201:6,142 (1.2): 0401:6128.

HUTCHINSON T C, WANG X,HEGEMIER G, et al. Physical damage evolution during earthquake and post—earthquake fire testing of a mid—rise cold—formed steel framed building [ C ]// Proceedings of the 11th U S National Conference on Earthquake Engineering. Los Angeles.: EEER, 2018.

FIORINO L,MACILL0 V,LAND0LF0 R. Shake table tests of a full-scale two—story sheathing—braced cold—formed steel building [J]. Engineering Structures ,2017,151:633—647.

YE J H,JIANG L Q. Simplified analytical model and shaking table test validation for seismic analysis of mid —rise cold —formed steel composite shear wall building [j]. Sustainability,2018,10 (9.): 3188.

SHI Y,ZH0U X H,LIU L P, et al. Shaking table test on prefabricated light steel structure popular science building [j]. Journal of Building Structures ,2019,40(2.): 98—107. (in Chinese)

JGJ 227 —2011 Technical specification for low —rise cold —formed thin—walled steel buildings [S]. Beijing: China Architecture and Building Press ,2011:14—15. (In Chinese)

GB 50011-2001 Code for seismic design of buildings. [S]. Beijing: China Architecture and Building Press,2010;43—44. (In Chinese)


Refbacks

  • There are currently no refbacks.