Status | 已發表Published |
An experimental study on cyclic behavior of extended end-plate connections equipped with shape memory alloy bolts | |
Cheng Fang1; Michael C.H. Yam2; Angus C.C. Lam3; Chuanglong Jiang3 | |
2013 | |
Conference Name | The 2013 World Congress on Advances Structural Engineering and Mechanics |
Source Publication | proceedings of The 2013 World Congress on Advances Structural Engineering and Mechanics |
Conference Date | September 8-12,2013 |
Conference Place | Jeju,Korea |
Abstract | In parallel with the research efforts for clearer insights into the response of conventional structures against seismic effects, recent research interests have been directed to innovative construction materials to be employed as alternative solutions. The ability of shape memory alloys (SMAs) to undergo reversible deformations up to around 8% strain with moderate energy dissipation capacities makes them nowadays under active studies for seismic design purposes. This paper explores the feasibility of SMA bolts used for extended end-plate connections through experimental studies. The basic idea is to concentrate the earthquake induced deformation into the connection, such that a ‘super-elastic’ hinge can be formed via the elongation of the SMA bolts. The connecting column and beam including the end-plate are expected to behave elastically. Two tests, considering two different SMA bolt lengths, were conducted. The connections were tested under static cyclic loading until the occurrence of fracture in the SMA bolts. It was mainly observed that the connection with the SMA bolts had a very good recentring ability with moderate energy dissipation. Ductility of the connections was less satisfactory due to the relatively early fracture of the furthest bolt in the threaded area. The early fracture of bolts might be avoided in future through increasing the net threaded area. In addition, slight degradation of rotational stiffness was observed as the cycle number increased. |
Language | 英語English |
Document Type | Conference paper |
Collection | Faculty of Science and Technology DEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING |
Affiliation | 1.Department of Civil & Environmental Engineering, Imperial College London, SW7 2AZ, United Kingdom, Formerly: Department of Building & Real Estate, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China 2.Department of Building & Real Estate, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China 3.Department of Civil & Environmental Engineering, University of Macau, Macau SAR, China |
Recommended Citation GB/T 7714 | Cheng Fang,Michael C.H. Yam,Angus C.C. Lam,et al. An experimental study on cyclic behavior of extended end-plate connections equipped with shape memory alloy bolts[C], 2013. |
APA | Cheng Fang., Michael C.H. Yam., Angus C.C. Lam., & Chuanglong Jiang (2013). An experimental study on cyclic behavior of extended end-plate connections equipped with shape memory alloy bolts. proceedings of The 2013 World Congress on Advances Structural Engineering and Mechanics. |
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