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裴星洙, 黎雪環(huán)
(江蘇科技大學(xué)土木與建筑工程學(xué)院,鎮(zhèn)江212003)[摘要] 本文將框架-剪力墻結(jié)構(gòu)算例模型中的剪力墻簡化為單墻柱模型和雙墻柱模型后,采用平面鉸接體系利用靜力彈塑性分析程序,得出層剪力和層間位移曲線。利用該曲線確定與框架-剪力墻算例模型相對應(yīng)的多質(zhì)點(diǎn)系振動(dòng)層模型側(cè)移剛度,進(jìn)行彈塑性地震響應(yīng)時(shí)程分析。同時(shí)與ANSYS所得結(jié)果進(jìn)行比較??紤]結(jié)構(gòu)等效抗側(cè)剛度放大系數(shù)的和等效面積增大系數(shù)的影響,對該結(jié)構(gòu)進(jìn)行彈塑性時(shí)程分析。結(jié)果表明:剪力墻單墻柱和雙墻柱模型具有一定的合理性和實(shí)用性,利用它可以作偏于安全設(shè)計(jì),本文計(jì)算方法能為結(jié)構(gòu)抗震初步設(shè)計(jì)提供一種手段。
[關(guān)鍵詞] 剪力墻;單墻柱模型;雙墻柱模型;時(shí)程分析Analysis of Nonlinear Seismic Responses of Fame-wall Buildings
Pei Xingzhu, Li Xuehuan
( School of Civil Engineering and Construction, Jiangsu University of Science and Technology, Zhenjiang 212003, China)Abstract: This paper simplifies the shear wall as the single wall-column model and double wall-column model. Applied the elastic-plastic static analysis, it gets the layer shear and layer displacement curve with frame-shell wall articulated system. This paper calculates the frame-shell wall structure stiffness of the multi-mass system vibration modal by the curve, and calculates the elastic-plastic seismic response with time-history analysis method. By comparing with the results obtained by ANSYS, it directly gets some useful conclusions: Considering the influence of the structure stiffness magnification factor and area magnification factor, the single-wall column modal and double-wall column modal have certain rationality and the usability. It can be used to bias safe design and can provide a mean for seismic preliminary design of the structures.
Keywords: shear wall; single wall-column model; double wall-column model; time-history analysis
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