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(1 上海理工大學(xué)環(huán)境與建筑學(xué)院， 上海 200093； 2 上海建工二建集團(tuán)有限公司， 上海 200080)
摘要: 為研究鋼筋短搭接后澆超高性能水泥基復(fù)合材料(UHPC)連接的預(yù)制裝配式混凝土剪力墻的抗震性能，對4 榀剪跨比為 2. 27 的混凝土剪力墻試件進(jìn)行了擬靜力試驗。 為了探討軸壓比對其抗震性能的影響規(guī)律，其中 1 榀為設(shè)計軸壓比為 0. 2 的現(xiàn)澆剪力墻，3 榀為設(shè)計軸壓比分別為 0. 2、0. 33、0. 47 的預(yù)制裝配式剪力墻。 試驗結(jié)果表明:所有試件均以剪壓破壞為主，各試件剛度退化與強(qiáng)度退化規(guī)律基本相同，位移角均遠(yuǎn)大于規(guī)范中規(guī)定的彈塑性層間位移角限值 1 / 120。 與現(xiàn)澆試件相比，軸壓比同為 0. 2 的預(yù)制裝配式試件的抗裂能力、承載力和剛度均有所提高，延性與耗能能力略低；隨著軸壓比增大，預(yù)制裝配式試件抗裂能力、承載力和剛度顯著提高，滯回曲線出現(xiàn)明顯的捏攏現(xiàn)象，延性和耗能能力有所降低。
關(guān)鍵詞: 預(yù)制裝配式混凝土剪力墻； 鋼筋短搭接； 擬靜力試驗； 超高性能水泥基復(fù)合材料； 抗震性能； 軸壓比
中圖分類號:TU375，TU317. 1 文獻(xiàn)標(biāo)志碼:A 文章編號:1002￣848X(2022)06￣0001￣09
DOI:10. 19701. / j.jzjg.20200504
Experimental research on seismic performance of precast concrete shear wall connected with ultrahigh performance cementitious composites
ZHENG Qizhen1， NONG Decai1， LONG Libo2， MA Yueqiang2， CHEN Gang1
(1 School of Environment and Architecture， University of Shanghai for Science and Technology， Shanghai 200093，China； 2 Shanghai Construction No.2(Group)Co.， Ltd.， Shanghai 200080， China)
Abstract: Quasi￣static tests of four concrete shear wall specimens with shear span ratio of 2. 27 were conducted aimed atstudying on seismic performance of precast concrete shear wall connected with ultra high performance cementitiouscomposites ( UHPC ) by short lap of reinforcement. In order to investigate the influence law of axial compression ratio onthe seismic performance，one full cast￣in￣place wall with design axial compression ratio of 0. 2 was considered， and threeprecast specimens with design axial compression ratios of 0. 2，0. 33 and 0. 47 were considered. The experimental resultsshow that all the specimens are mainly shear compression failure， the law of the stiffness degradation and strengthdegradation of each specimen are basically the same， and displacement angles are much larger than the limit 1 / 120 ofelastic￣plastic interlayer displacement angles specified in the code. Comparing with the cast￣in￣place specimen， when theaxial compression ratio is 0. 2， the crack resistance， bearing capacity and stiffness of precast specimens are improved， andthe ductility and energy dissipation capacity are slightly lower. With the increase of axial compression ratio， the crackresistance， bearing capacity and stiffness of precast specimens are significantly improved， and the hysteresis curve isobviously pinched， and the ductility and energy dissipation capacity are reduced.
Keywords:precast concrete shear wall； short lap of reinforcement； quasi￣static test； ultra high performance cementitiouscomposites； seismic performance； axial compression ratio
∗上海市科學(xué)技術(shù)委員會科研計劃項目(17DZ1203503)。
第一作者:鄭七振，博士，教授，主要從事結(jié)構(gòu)工程計算與仿真研究，Email:zhengqz1@ 163.com。
[引用本文] 鄭七振，農(nóng)德才，龍莉波，等.基于超高性能水泥基復(fù)合材料連接的預(yù)制裝配式混凝土剪力墻抗震性能試驗研究[J]. 建筑結(jié)構(gòu)， 2022， 52(6):1￣9，60. ZHENG Qizhen，NONG Decai，LONG Libo，et al. Experimental researchon seismic performance of precast concrete shear wall connected with ultra high performance cementitious composites[ J].Building Structure， 2022， 52(6):1￣9，60.
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