TY - GEN
T1 - Numerical modelling of tubular steel braces under cyclic axial loading
AU - Nip, K. H.
AU - Gardner, L.
AU - Elghazouli, A. Y.
PY - 2007
Y1 - 2007
N2 - Concentrically braced frames are commonly employed as lateral load resisting structures. Their response largely depends on the behaviour of the braces, which are the key energy dissipative zones. Although steel braces under cyclic axial loading have been studied experimentally, there is a need for further assessment focusing on quantifying failure. This paper describes the development of sophisticated finite element models of hollow sections subjected to cyclic axial loading. Also, an accurate, though simple method to predict fracture life was adopted. The effects of initial imperfections and strain hardening were taken into consideration and the models were validated against data from several test programmes. A parametric study was carried out to study the effect of member and cross-section slendernesses on the performance of the braces. The results were compared with the results from other experimental programmes and design specifications.
AB - Concentrically braced frames are commonly employed as lateral load resisting structures. Their response largely depends on the behaviour of the braces, which are the key energy dissipative zones. Although steel braces under cyclic axial loading have been studied experimentally, there is a need for further assessment focusing on quantifying failure. This paper describes the development of sophisticated finite element models of hollow sections subjected to cyclic axial loading. Also, an accurate, though simple method to predict fracture life was adopted. The effects of initial imperfections and strain hardening were taken into consideration and the models were validated against data from several test programmes. A parametric study was carried out to study the effect of member and cross-section slendernesses on the performance of the braces. The results were compared with the results from other experimental programmes and design specifications.
UR - http://www.scopus.com/inward/record.url?scp=55549096028&partnerID=8YFLogxK
M3 - Conference article published in proceeding or book
AN - SCOPUS:55549096028
SN - 0415451418
SN - 9780415451413
T3 - Proceedings of the 3rd International Conference on Steel and Composite Structures, ICSCS07 - Steel and Composite Structures
SP - 753
EP - 758
BT - Proceedings of the 3rd International Conference on Steel and Composite Structures, ICSCS07 - Steel and Composite Structures
T2 - 3rd International Conference on Steel and Composite Structures, ICSCS07 - Steel and Composite Structures
Y2 - 30 July 2007 through 1 August 2007
ER -