Experimental and Numerical Investigation of an End Plate Connection with Using Long Shank SMA Bolts
Hongwei Ma1,2, Yongbing Zhu1, Michael C.H. Yam3 , Yang Wang2
(1.School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510640, China;2. State Key Laboratory of Subtropical Architecture Science, South China University of Technology, Guangzhou 510640, China;3. Department of Building and Real Estate, The Hong Kong Polytechnic University, Hung Hom Kowloon, Hong Kong)
Abstract:
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.
Key words: finite element connection shape memory alloy ductility self-centering
DOI：10.11916/j.issn.1005-9113.2015.03.004
Clc Number:TU318
Fund:
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Experimental and Numerical Investigation of an End Plate Connection with Using Long Shank SMA Bolts
本站小编 哈尔滨工业大学/2019-10-23
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