- 摘 要
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(1 山東大學土建與水利學院， 濟南 250061；2 天元建設集團有限公司， 臨沂 276002；3 同圓設計集團有限公司， 濟南 250101；4 青島城建集團有限公司， 青島 266031)
［摘要］提出了一種彎折鋼筋抗剪鍵的內(nèi)嵌鋼板-混凝土組合剪力墻，通過對3片新型組合剪力墻和1片鋼筋混凝土剪力墻進行低周往復試驗，研究其抗剪承載力、變形能力、抗側(cè)剛度、延性和耗能能力等性能。試驗參數(shù)包括彎折鋼筋的布置方式、是否設置橫向分布鋼筋及墻體類型。按《組合結(jié)構(gòu)設計規(guī)范》（JGJ 138—2016）中的公式計算了組合剪力墻的抗剪承載力，并與試驗結(jié)果進行了對比。結(jié)果表明：新型組合剪力墻抗剪承載力、屈服位移和極限位移均高于鋼筋混凝土剪力墻，在相同側(cè)向位移下表現(xiàn)出更強的耗能能力。未設置橫向分布鋼筋的組合剪力墻位移延性系數(shù)低于鋼筋混凝土剪力墻，表明橫向分布鋼筋的設置可有效限制構(gòu)件屈服后混凝土的開裂，提高構(gòu)件的延性；抗剪鋼筋交錯布置的組合剪力墻屈服強度和極限強度高于抗剪鋼筋平行布置的組合剪力墻，但抗剪鋼筋布置方式對混凝土開裂和裂縫貫通位移角無明顯影響；試驗后的內(nèi)置鋼板核心區(qū)域未產(chǎn)生平面外變形，組合剪力墻表現(xiàn)出較高的抗剪承載力。
［關(guān)鍵詞］鋼板-混凝土組合剪力墻；抗剪鍵；擬靜力試驗；抗剪性能；抗震性能
中圖分類號：TU398+.2 文獻標識碼：A文章編號：1002-848X(2021)18-0017-07
Experimental study on shear performance of composite shear wall using trapezoidal steel bar as shear connectors
LI Yang1,3, WANG Peijun1, YUAN Xianchao2, WANG Baoping2, ZHAO Hui4, LI Andong2, WANG Huaipeng2
(1 College of Civil Enginerring, Shandong University, Jinan 250061， China；2 Tianyuan Construction Group Co., Ltd., Linyi 276002， China；3 Tongyuan Design Group Co., Ltd., Jinan 250101， China；4 Qingdao City Construction Group Co., Ltd., Qingdao 266031， China)
Abstract: An infilled steel plate-concrete composite shear wall (SCCW) using trapezoidal steel bar as shear connectors was proposed. Low-cycle reciprocating test of three SCCWs and one reinforced concrete shear wall (RW) was carried out to investigate the shear capacity, deformation capability, lateral stiffness, ductility and energy dissipation capability of members. Parameters include distribution mode of trapezoidal steel bar, whether to set horizontal distributional steel bars and the type of wall. The shear capacity of composite shear wall was calculated according to the formula in the Code for design of composite structures and compared with the test results. The result shows that the SCCW exhibits higher shear capacity, yielding displacement and ultimate displacement than the traditional RW, and it also shows higher energy dissipation capability under the same lateral displacement level. The displacement ductility coefficient of the composite shear wall without horizontal distribution steel bars is lower than that of RW, indicating that the setting of horizontal distribution steel bars can effectively limit the concrete cracking after the component yields and improve the ductility of the component. The yield strength and ultimate strength of the composite shear wall with the staggered distribution of shear bars are higher than the composite shear wall with the parallel distribution of the shear bars, but the distribution mode of the shear bars has no significant effect on the concrete cracking and crack penetration angle. After the test, the core area of the built-in steel plate does not produce out-of-plane deformation, and the composite shear wall shows high shear resistance.
Keywords:steel plate-concrete composite shear wall； shear connector； quasi-static test； shear performance; seismic performance
作者簡介：李陽，碩士研究生，工程師，Email：ly772xx@126.com。
