%0 Journal Article
	%A Mohamed Omar
	%D 2014
	%J International Journal of Computer and Systems Engineering
	%B World Academy of Science, Engineering and Technology
	%I Open Science Index 86, 2014
	%T Seismic Response of Braced Steel Frames with Shape  Memory Alloy and Mega Bracing Systems
	%U https://publications.waset.org/pdf/9997313
	%V 86
	%X Steel bracing members are widely used in steel 
structures to reduce lateral displacement and dissipate energy during 
earthquake motions. Concentric steel bracing provide an excellent 
approach for strengthening and stiffening steel buildings. Using these 
braces the designer can hardly adjust the stiffness together with 
ductility as needed because of buckling of braces in compression. In 
this study the use of SMA bracing and steel bracing (Mega) utilized 
in steel frames are investigated. The effectiveness of these two 
systems in rehabilitating a mid-rise eight-storey steel frames were 
examined using time-history nonlinear analysis utilizing seismostruct 
software. Results show that both systems improve the strength and 
stiffness of the original structure but due to excellent behavior of 
SMA in nonlinear phase and under compressive forces this system 
shows much better performance than the rehabilitation system of 
Mega bracing.

 

	%P 131 - 138