Experimental and Numerical Investigation of an End Plate Connection with Using Long Shank SMA Bolts

作     者：Hongwei Ma Yongbing Zhu Michael C.H.Yam Yang Wang 

作者机构：School of Civil Engineering and TransportationSouth China University of Technology State Key Laboratory of Subtropical Architecture ScienceSouth China University of Technology Department of Building and Real EstateThe Hong Kong Polytechnic University 

出 版 物：《Journal of Harbin Institute of Technology(New Series)》 (哈尔滨工业大学学报（英文版）)

年 卷 期：2015年第22卷第3期

页      面：22-30页

核心收录：

学科分类：08[工学] 081402[工学-结构工程] 081304[工学-建筑技术科学] 0813[工学-建筑学] 0814[工学-土木工程] 

基　　金：Sponsored by the National Natural Science Foundation of China(Grant No.50808084) 

主　　题：finite element connection shape memory alloy ductility self-centering 

摘      要：Superelastic shape memory alloys( SMAs) have the ability to recover their original shape after experiencing large strains. End-plate connection with using superelastic long shank SMA bolts is proposed in this paper. By using strong beam-weak bolt cluster design methodology and special configurations to strength beam ends,a superelastic hinge is expected to form in column flange. To validate the mechanical behavior of the proposed beam-to-column connection,both quasi-static tests and numerical analysis are conducted with cyclic transverse loads applied on the beam ends. The results indicate the connection deformations concentrate on the long shank SMA bolts upon loading and the bolt cluster rotates around the axis near beam flange. By using the super elastic effect,the SMA bolts recover most elongations and the connection recovers to its original shape after experiencing 0. 02 rad interstorey drift angle. The connection shows obvious self-centering properties.