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(武漢理工大學(xué)土木工程與建筑學(xué)院， 武漢 430070)

［摘要］為研究采用《裝配式混凝土建筑技術(shù)標(biāo)準(zhǔn)》（GB/T 51231—2016）附錄A規(guī)定的水平接縫連接方式的單面疊合剪力墻平面外受力性能，完成了1片帶水平接縫單面疊合剪力墻和1片現(xiàn)澆剪力墻試件的平面外受力單調(diào)加載試驗(yàn)。結(jié)果表明：?jiǎn)蚊姣B合剪力墻試件的裂縫分布形態(tài)與現(xiàn)澆剪力墻試件相同，均表現(xiàn)為典型的彎曲破壞特征；單面疊合剪力墻試件在平面外受力時(shí)的初始剛度、延性性能、極限承載力均明顯高于現(xiàn)澆剪力墻試件，平面外剛度退化速度略大于現(xiàn)澆剪力墻試件；采用該水平接縫連接方式的豎向連接鋼筋能有效傳遞鋼筋應(yīng)力；在平面外荷載作用下，單面疊合剪力墻的整體性保持完好，預(yù)制后澆混凝土界面未發(fā)生剪切滑移破壞。在試驗(yàn)研究基礎(chǔ)上，采用ABAQUS軟件對(duì)試件進(jìn)行有限元建模分析，計(jì)算結(jié)果與試驗(yàn)結(jié)果吻合良好；計(jì)算結(jié)果表明，隨著軸壓比增大，單面疊合剪力墻的平面外承載力明顯增加，而延性明顯降低；豎向連接鋼筋搭接長(zhǎng)度越短，平面外承載力越低。 

［關(guān)鍵詞］單面疊合剪力墻；平面外受力性能；水平接縫；單調(diào)加載試驗(yàn) 

中圖分類號(hào)：TU398-2 文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2021)21-0073-08

Experimental study on out-of-plane mechanical behavior of a single-side superposed shear wall with horizontal joints 

GU  Qian,  HUANG  Ronghua,  ZHANG  Yanbin,  DENG  Qing,  KE  Yang 

(School of Civil Engineering and Architecture， Wuhan University of Technology, Wuhan 430070， China) 

Abstract: In order to investigate the out-of-plane mechanical property of single-side superposed shear walls with horizontal joint connection specified in Appendix A of the Technical standard for assembled buildings with concrete structure (GB/T 51231—2016), the out-of-plane monotonic loading tests were conducted on one single-side superposed shear walls with horizontal joints and one cast-in-situ shear wall. The test results indicated that the fracture distribution pattern of the two shear walls are similar, which shows typical bending failure characteristics. The out-of-plane initial stiffness, ductility and ultimate bearing capacity of the single-side superposed shear wall specimen are obviously higher than that of the cast-in-situ shear wall specimen, but the out-of-plane stiffness degradation rate is slightly faster than that of the cast-in-situ shear wall specimen. Vertical connection steel bars with the horizontal joint connection have good load transfer performance. The integrity of the single-side superposed shear wall section remains intact under the out-of-plane loading and the precast-post cast concrete interface fail to occur shear slip. On the experimental basis, finite element modeling analysis of the shear wall carried out by the ABAQUS, the finite element simulation results are in good agreement with the experimental results. The finite element parametric analysis show that with the increase of axial compression ratio, the out-of-plane bearing capacity of the single-side superposed shear wall increases significantly, but the ductility decreases significantly. The shorter the overlapping length of the vertical connecting reinforcement is, the lower the out-of-plane bearing capacity of the specimen is. 

Keywords:single-side superposed shear wall； out-of-plane mechanical behavior； horizontal joint out-of-plane； monotonic loading test

*國(guó)家重點(diǎn)研發(fā)計(jì)劃項(xiàng)目（2016YFC0305101），武漢市城建局科技計(jì)劃項(xiàng)目（201922）。

 作者簡(jiǎn)介：谷倩，博士，教授，博士生導(dǎo)師，Email: guqian218@126.com。