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(1 北京工業(yè)大學(xué)建筑工程學(xué)院，北京 100124; 2 清華大學(xué)土木工程系，北京 100084)

［摘要］采用ANSYS有限元軟件，對(duì)一個(gè)設(shè)置現(xiàn)澆邊緣構(gòu)件的單片預(yù)制圓孔板剪力墻試件進(jìn)行了在定軸壓力和單調(diào)遞增水平力作用下的非線性分析，與擬靜力試驗(yàn)結(jié)果進(jìn)行了比較，兩者符合較好，驗(yàn)證了計(jì)算模型和參數(shù)取值的合理性。在此基礎(chǔ)上，對(duì)四個(gè)設(shè)置現(xiàn)澆邊緣構(gòu)件的單片及雙片預(yù)制圓孔板剪力墻試件進(jìn)行了非線性有限元分析。結(jié)果表明，無(wú)論是按彎曲破壞還是按剪切破壞設(shè)計(jì)的試件，都是墻底截面開裂，邊緣構(gòu)件沿高度出現(xiàn)水平裂縫，圓孔板剪力墻以斜裂縫為主，斜裂縫數(shù)量多，布滿整個(gè)墻面，沒(méi)有出現(xiàn)集中的塑性鉸，有利于抗震耗能；雙片墻試件的開裂荷載和最大荷載顯著高于單片墻試件的。結(jié)論可為預(yù)制圓孔板剪力墻這種新型裝配整體式住宅建筑體系的推廣應(yīng)用提供理論依據(jù)。

［關(guān)鍵詞］預(yù)制鋼筋混凝土圓孔板剪力墻；非線性有限元分析；裂縫；破壞形態(tài)Nonlinear finite element analysis of prefabricated hollow-core reinforced concrete shear walls

Zhang Weijing¹, Meng Tao¹, Qian Jiaru²(1 College of Architecture and Civil Engineering，Beijing University of Technology，Beijing 100124, China； 2 Department of Civil Engineering，Tsinghua University, Beijing 100084, China)

Abstract:Nonlinear finite element analysis of a single piece prefabricated hollow-core reinforced concrete shear wall with cast-in-situ boundary element specimen subjected to a constant vertical load and a monotonic increasing lateral load was performed by the software ANSYS. The analytical results had good agreement with the pseudo-static test results, proving the rationality of the analytical model and parameters. Then nonlinear finite element analysis of four prefabricated hollow-core reinforced concrete shear walls with cast-in-situ boundary element specimens was carried out. The results show that all specimens designed to fail in bending or in shear have cracks at the bottom section of the specimen, horizontal cracks occur along the height of the boundary element，diagonal cracks appear on the whole prefabricated hollow-core wall，and no plastic hinge is formed at the base of the specimen, which is benefit for the wall to dissipate seismic energy; cracking load and the maximum load of specimens with two pieces of hollow-core wall are higher than those of specimens with single piece of hollow-core wall. A theoretical base for practical application of the new house structure system is provided.

Keywords:prefabricated hollow-core RC shear wall; nonlinear finite element analysis; crack; failure mode

北京市科委基金項(xiàng)目(D09050603800000)。

作者簡(jiǎn)介：張微敬，博士，副教授，Email：zhangweijing@bjut.edu.cn。

參考文獻(xiàn)

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