- 摘 要
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(1 大連理工大學土木工程學院, 大連 116024; 2 煙臺大學土木工程學院, 煙臺 264005;3 北京建筑大學北京未來城市設計高精尖創(chuàng)新中心, 北京 100044;4 山東艾科福建筑科技有限公司, 煙臺 264006)
[摘要]對1個鋼筋混凝土剪力墻試件、1個后澆帶連接的預制混凝土剪力墻試件和1個榫卯接縫連接的裝配整體式剪力墻試件開展擬靜力試驗研究,研究了不同構造接縫的連接性能及其對墻體受力性能的影響。結果表明,榫卯接縫的連接性能較好,可保證墻體的整體性,對受彎承載力無不利影響;峰值荷載后,沿榫卯接縫的橫向凹槽底部截面形成豎向裂縫,有助于提高墻體的變形能力,減小根部混凝土壓潰區(qū)域;后澆帶接縫剪力墻開裂較早且發(fā)展較快,對承載力影響較大,榫卯接縫的連接性能優(yōu)于后澆帶連接接縫。
[關鍵詞]榫卯接縫;裝配整體式剪力墻;連接性能;后澆帶;受力性能
中圖分類號:TU937-1+6,TU317+.1文獻標識碼:A文章編號:1002-848X(2021)09-0015-08
Experimental study on mechanical behavior of assembled monolithic shear walls with different joints
LIU Jiliang1, WANG Baomin1, LUO Yuping 2, AN Ning2, ZHANG Pengfei3,4, CHU Mingjin3
(1 School of Civil Engineering, Dalian University of Technology, Dalian 116024, China; 2 School of Civil Engineering, Yantai University, Yantai 264005, China; 3 Beijing Advanced Innovation Center for Future Urban Design, Beijing University of Civil Engineering and Architecture, Beijing 100044, China; 4 Shandong Aikefu Building Technology Co., Ltd., Yantai 264006, China)
Abstract:The pseudo-static tests of three shear wall specimens including one cast-in concrete shear wall, one precast concrete shear wall with post-pouring strip joint and one assembled monolithic shear wall with mortise-tenon joint were carried out to study the connection behavior of different joints and the influence of these joints on the mechanical properties of the walls. The results show that the connection performance of mortise-tenon joint is very well, which can ensure the integrity of the wall and has no effect on the bending bearing capacity. After peaking load, vertical cracks are formed along the bottom section of transverse groove in the mortise and tenon joint, which are helpful to improve the deformability of shear wall and reduce the crushing area of root concrete. The cracking of post-pouring strip joint appears earlier and develops faster, which has great influence on bearing capacity. The connection behavior of mortise-tenon joint is better than that of post-pouring strip joint.
Keywords:mortise-tenon joint; assembled monolithic shear wall; connection behavior; post-pouring strip; mechanical behavior
*山東省自然科學基金(ZR2018PEE024),國家自然科學基金項目(51778034),北京市屬高校基本科研業(yè)務費專項資金資助(X18179,X19003)。
作者簡介:劉繼良,博士研究生,Email: lianglju@163.com;通信作者:初明進,博士,教授,博士生導師,Email: chumingjin@bucea.edu.cn。