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（1 河南工業(yè)大學(xué)土木工程學(xué)院， 鄭州 450001； 2 中建中原建筑設(shè)計(jì)有限公司， 鄭州 450003）
［摘要］為研究裝配式鋼-混凝土組合管（SRCT）剪力墻的抗震性能與承載能力，完成了4個(gè)足尺SRCT剪力墻試件和1個(gè)足尺鋼筋混凝土（RC）剪力墻試件在水平荷載作用下的擬靜力試驗(yàn)，對其破壞形態(tài)、滯回曲線、剛度和承載能力等進(jìn)行了分析。結(jié)果表明：SRCT剪力墻具有較大的剛度和承載能力，滯回曲線飽滿，表現(xiàn)出良好的抗震性能； 與RC剪力墻相比，SRCT剪力墻墻肢上裂縫較少，墻肢根部混凝土破壞程度較低； SRCT剪力墻的破壞形態(tài)隨鋼板厚度的增大由U形鋼和鋼板屈服斷裂轉(zhuǎn)變?yōu)楹缚p破壞，工廠制作時(shí)需保證薄鋼板與U形鋼和法蘭的焊接質(zhì)量，避免焊縫破壞的發(fā)生； 建立了SRCT剪力墻承載力計(jì)算模型，推導(dǎo)了SRCT剪力墻的初始剛度和承載力計(jì)算表達(dá)式，理論計(jì)算結(jié)果與實(shí)測結(jié)果符合較好。
［關(guān)鍵詞］鋼-混凝土組合管剪力墻； 鋼筋混凝土剪力墻； 抗震性能； 擬靜力試驗(yàn)； 破壞形態(tài)； 承載能力
中圖分類號(hào)：TU398-2， TU317-1文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2020)20-0084-06
Seismic performance test and bearing capacity calculation of precast SRC composite tube shear wall
PANG Rui1, WANG Lu1, XU Zhu1, LIU Yuhao1, LEI Hongbing2
(1 College of Civil Engineering, Henan University of Technology, Zhengzhou 450001, China;(2 CSCEC Zhongyuan Architectural Design Institute Co., Ltd., Zhengzhou 450003， China)
Abstract:In order to study the seismic behavior and bearing capacity of precast SRC composite tube (SRCT) shear wall, quasi-static tests under horizontal load of four full-scale SRCT shear wall specimens and one full-scale reinforced concrete (RC) shear wall specimen were carried out. The failure mode, hysteretic curves, stiffness and bear capacity of specimens were analyzed. The test results indicate that SRCT shear wall behaves much better in stiffness and bearing capacity. SRCT shear wall with plumper hysteretic curves shows great seismic behavior. Compared with RC shear wall, SRCT shear wall has fewer cracks on the upper part of walls and less broken concrete at the bottom of wall. With the increase of the thickness of steel plates, the failure modes change from local buckling and fracture of U-shaped steel plates and steel plates into fracture of welds. During application the welding quality of thin steel plate with U-shaped steel and the flange must be ensured to avoid fracture of welds. By establishing the calculation model of SRCT shear wall, the calculation formulas of the initial stiffness and bearing capacity of SRCT shear wall are presented. The theoretical results of initial stiffness and bearing capacity of SRCT shear wall fitted well with the test results.
Keywords:SRC composite tube shear wall; reinforced concrete shear wall; seismic behavior; quasi-static test; failure mode; bearing capacity
*國家自然科學(xué)基金(51208181，51778214)，中原青年拔尖人才支持項(xiàng)目（ZYQR201912170），河南省屬高?；究蒲袠I(yè)務(wù)專項(xiàng)基金（2017RCJH04）。
作者簡介：龐瑞，博士，副教授，Email:seupangrui@163.com。
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