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(西南科技大學(xué)土木與建筑工程學(xué)院，綿陽621010)

［摘要］采用ANSYS軟件建立三維模型，對某在建的兩層冷彎薄壁型鋼住宅靜力性能和地震荷載作用下彈塑性性能進(jìn)行分析，為該類結(jié)構(gòu)體系在高烈度區(qū)以及災(zāi)后恢復(fù)重建中的應(yīng)用提供依據(jù)。分析結(jié)果表明：該類結(jié)構(gòu)體系對于高烈度地區(qū)具有較好的適應(yīng)性；該結(jié)構(gòu)體系的縱向剛度較橫向小，結(jié)構(gòu)體系第1階振型以扭轉(zhuǎn)為主，在設(shè)計(jì)中需引起重視；在地震波作用下，其動(dòng)力放大系數(shù)與同類型的普通鋼結(jié)構(gòu)相差不大，但不同的地震波所得到的結(jié)果差別比較大，所以在進(jìn)行時(shí)程分析時(shí)，要正確選擇地震波。

［關(guān)鍵詞］冷彎薄壁型鋼；靜力計(jì)算；動(dòng)力特性；數(shù)值模擬

中圖分類號：TU392.1文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2011)02-0041-05

Numerical simulation of the cold-formed thin-walled steel structure system

Yao Yong, Chu Yunpeng, Deng Yongjun, Xu Bin, Guo Xiaoyan

(School of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang 621010, China)

Abstract:Three-dimensional analysis model of a cold-formed thin-walled steel house with two layers which is being built was established by ANSYS. Its elastic-plastic response under the static and seismic loads was analyzed. It could provide some references for the application of this type of structure in high-intensity areas and after-disaster reconstruction. The results show that this type of structure has good adaptability in high intensity areas. The horizontal stiffness is greater than the longitudinal one. It should pay attention to the seismic resistance in the design because the torsion plays a main role in the first mode. Under the seismic load, the dynamic amplification coefficient is the same to the ordinary structure, but the results of different waves have great difference, correct waves should be chosen in time history analysis.

Keywords:cold-formed thin-walled steel; static calculation; dynamic performance; numerical simulation

“863”計(jì)劃重點(diǎn)項(xiàng)目(2009AA032304)。

作者簡介：姚勇，博士，教授，Email: yy001221@163.com。

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