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(1 北京建筑大學(xué)北京未來城市設(shè)計高精尖創(chuàng)新中心, 北京 100044;2 山東艾科福建筑科技有限公司, 煙臺 264006;3 大連理工大學(xué)土木工程學(xué)院, 大連 116024)
[摘要]為研究軸壓比、水平鋼筋配筋量對設(shè)置現(xiàn)澆邊緣構(gòu)件裝配整體式剪力墻的受彎性能的影響,完成了3個裝配整體式剪力墻試件和1個現(xiàn)澆鋼筋混凝土剪力墻試件的擬靜力試驗。試驗結(jié)果表明:剪跨比為1.5的裝配整體式剪力墻的承載力略低于現(xiàn)澆鋼筋混凝土剪力墻,但變形能力更好;提高水平鋼筋配筋量以及增大軸壓比,裝配整體式剪力墻墻體破壞區(qū)域向榫卯接縫和中部豎向通孔等位置處發(fā)展,墻體根部混凝土壓潰區(qū)域面積減小,墻體承載力及正常使用階段的剛度增大;裝配整體式剪力墻榫卯接縫連接性能良好,能夠保證墻體的整體性。
[關(guān)鍵詞]裝配整體式剪力墻;榫卯接縫;現(xiàn)澆邊緣構(gòu)件;軸壓比;剪跨比;受彎性能
中圖分類號:TU973-1+6,TU317+.1文獻標(biāo)識碼:A文章編號:1002-848X(2021)09-0030-08
Experimental study on bending behavior of assembled monolithic shear walls with mortise-tenon joint under medium and high shear span ratio
CHU Mingjin1, LI Xiangbin1, LIU Jiliang3, CAO Chunli1,2, CHEN Guoyao1, LI Aiqun1
(1 Beijing Advanced Innovation Center for Future Urban Design, Beijing University of Civil Engineering and Architecture, Beijing 100044, China; 2 Shandong Aikefu Building Technology Co., Ltd., Yantai 264006, China; 3 School of Civil Engineering, Dalian University of Technology, Dalian 116024, China)
Abstract:In order to study the influence of the axial compression ratio and the amount of horizontal reinforcement on the bending behavior of the assembled monolithic shear walls with cast-in-situ boundary members, the pseudo-static tests of three mortise-tenon shear wall specimens and one cast-in-situ reinforced concrete shear wall specimen were carried out. The test results show that the bearing capacity of the assembled monolithic shear walls with shear span ratio of 1.5 is slightly lower than that of the cast-in-place reinforced concrete shear walls, but the deformation capacity is better. With the increase of the amount of horizontal reinforcement and axial compression ratio, the damage area of the assembled monolithic shear walls develops toward the mortise-tenon joint and the vertical through hole in the middle. The area of the concrete compression area at the root of the walls decreases, the bearing capacity of the walls and the rigidity of the normal use stage increase. The connection behavior of mortise-tenon joint of assembled monolithic shear walls is very well, which can ensure the integrity of the walls.
Keywords:assembled monolithic shear wall; mortise-tenon joint; cast-in-situ boundary element; axial compression ratio; shear span ratio; bending behavior
*國家自然科學(xué)基金項目(51778034),山東省自然科學(xué)基金(ZR2018PEE024),北京市屬高?;究蒲袠I(yè)務(wù)費專項資金資助(X18179,X19003)。
作者簡介:初明進,博士,教授,博士生導(dǎo)師,Email: chumingjin@bucea.edu.cn;通信作者:李愛群,博士,教授,博士生導(dǎo)師,Email: liaiqun@bucea.edu.cn。