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(1 廣西大學(xué)土木建筑工程學(xué)院 工程防災(zāi)與結(jié)構(gòu)安全教育部重點(diǎn)實(shí)驗(yàn)室， 南寧 530004；2 廣西大學(xué)廣西防災(zāi)減災(zāi)與工程安全重點(diǎn)實(shí)驗(yàn)室， 南寧 530004)
［摘要］通過一榀雙肢實(shí)腹式型鋼混凝土短肢剪力墻模型試件的低周反復(fù)荷載試驗(yàn)，揭示該類雙肢墻的破壞機(jī)制及抗震性能。試驗(yàn)結(jié)果表明：試件從型鋼混凝土連梁屈服形成塑性鉸，再到墻肢屈服發(fā)生破壞；試件延性系數(shù)、等效黏滯阻尼系數(shù)分別為3.58和0.191，表明該類雙肢墻結(jié)構(gòu)的破壞表現(xiàn)為強(qiáng)墻肢弱連梁型，具有較好的抗震性能?？紤]到連梁破壞時(shí)只有少許黏結(jié)裂縫，兼顧雙肢墻結(jié)構(gòu)計(jì)算效率，有限元建模時(shí)不考慮型鋼界面黏結(jié)滑移影響，計(jì)算結(jié)果可滿足工程要求。采用型鋼混凝土梁連接的型鋼混凝土短肢剪力墻抗震性能要優(yōu)于鋼筋混凝土梁。
［關(guān)鍵詞］雙肢墻；短肢剪力墻；型鋼混凝土；強(qiáng)墻肢弱連梁；抗震性能；擬靜力試驗(yàn)
中圖分類號：TU398-6 文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2021)14-0069-06
Seismic performance test and numerical simulation of coupled SRC short-leg shear walls
KE Xiaojun1,2, SU Yisheng1,2, WANG Xiaoyan1
(1 Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education, College of Civil Engineering and Architecture, Guangxi University, Nanning 530004， China；2 Guangxi Key Laboratory of Disaster Prevention and Engineering Safety, Guangxi University, Nanning 530004， China)
Abstract: To reveal the failure mechanism and seismic performance of coupled SRC short-leg shear walls, the quasi-static test was conducted for one model specimen of coupled solid-web steel concrete short-leg shear wall. Test results indicate that the specimen forms plastic hinges from steel-concrete coupling beams to yield, and then the wall legs yield to fail; the ductility coefficient and equivalent viscous damping coefficient of the specimen are 3.58 and 0.191, respectively, indicating that the failure of this type of coupled shear wall structure is a strong-wall-weak-coupling-beam type, with good seismic performance. Considering that there are only a few cohesive cracks when the coupling beam fails, and the calculation efficiency of the coupled shear wall structure is taken into account, the finite element modelling does not consider the effect of the bond-slip of the section steel interface, and the calculation results can meet the engineering requirements. The seismic performance of the short-leg shear wall connected by SRC beams is better than that of reinforced concrete beams.
Keywords:coupled shear wall； short-leg shear wall； steel reinforced concrete (SRC)； strong-wall-weak-coupling-beam； seismic performance； quasi-static test
*國家自然科學(xué)基金項(xiàng)目（51668007），廣西自然科學(xué)基金項(xiàng)目（2018GXNSFAA050007）。
作者簡介：柯曉軍，博士，副研究員，碩士生導(dǎo)師，Email:xj-ke@163.com；通信作者：蘇益聲，碩士，教授，博士生導(dǎo)師，Email: suyisheng@sina.com。
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