Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/22129
Title: Cyclic behavior of connections equipped with NiTi shape memory alloy and steel tendons between H-shaped beam to CHS column
Authors: Wang, W
Chan, TM
Shao, H
Chen, Y
Keywords: Cyclic load
Energy dissipation
Recentering
Shape memory alloy
Steel connection
Issue Date: 2015
Publisher: Pergamon Press
Source: Engineering structures, 2015, v. 88, p. 37-50 How to cite?
Journal: Engineering structures 
Abstract: Shape memory alloys (SMAs) are a class of smart materials which are able to undergo large deformations while reverting back to their original undeformed shape upon heating or by relieving the stress that causes the deformation. When they are equipped in connections within a structural steel frame, this unique property could enhance the recentering capability of the structure after severe event. In this paper, a novel connection - integrating superelastic SMA tendons with steel tendons, is proposed between a H-shaped beam to a CHS column. Six full-scale prototype specimens with different combination of SMA and steel tendons were tested to evaluate the recentering capability and the energy dissipative performance. The novel connection consists of SMA tendons with original diameter of 12. mm, steel tendons with original diameter of 12. mm, extended end-plate, external diaphragm and beam flange ribs. Test results showed that connections equipped with SMA tendons exhibit moderate energy dissipation, double-flag-shaped hysteresis loops and excellent recentering capability after being subjected to cyclic loads up to 6% interstory drift angle.
URI: http://hdl.handle.net/10397/22129
ISSN: 0141-0296
EISSN: 1873-7323
DOI: 10.1016/j.engstruct.2015.01.028
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