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Title: Experimental investigation into hysteretic behaviour of high strength S690 steel under different targeted strains
Authors: Ho, HC 
Liu, X 
Xiao, M 
Chung, KF 
Keywords: Hysteretic behaviour
High strength steel
Low cycle high strain cyclic tests
Deformation ductility
Issue Date: 2016
Publisher: University of Hong Kong, Dept of Civil Engineering
Source: 8th International Conference on Steel and Aluminium Structures (ICSAS), Hong Kong, People's Republic of China, Dec 7-9, 2016 How to cite?
Abstract: This paper presents an experimental investigation into hysteretic behaviour of high strength S690 steel under different targeted strains. After a critical review on suitability of various low cycle high strain cyclic tests reported in the literature, a test method with a specific loading protocol, a specific geometry of test coupons and a number of loading cycle frequencies was proposed. A total of six standard tensile tests were conducted to establish their basic mechanical properties while sixteen low cycle high strain cyclic tests were conducted according to the proposed test method. It should be noted that in these cyclic tests, four different targeted strains, namely, 5, 10 % 12 % and 15 % were specified, and four different loading cycle frequencies, namely, 0.1, 0.5, 1.0 and 2.0 Hz were adopted. After a rational analysis on the test data, an assessment on suitability of the steel material to be used in seismic resistant structures was presented. It was shown that through the proposed test method, the high strength S690 steel material was demonstrated to possess a hysteretic ductility up to 10 % under the specific loading protocol of the proposed test method.
ISBN: 978-962-8014-26-2
Appears in Collections:Conference Paper

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