چكيده لاتين :
Directly-connected internal steel bracing ojRC Jram es
has received some attention in recent y ears , both as a retrofitting
measure to increase the shear capacity oJth e existing RC buildings and
as a shear resisting element in the seismic design oj new buildings.
Although its successful use to upgrade the lateral load capacity oj
existing Reinforced Concrete (RC) frames has been the subj ect oj a
number ofstudies, guidelinesfor its use in newly constructed RCJrames
need to be further developed. An important consideration in the design
ojsteel-braced RCJrames is the level ojinteraction between the strength
capacities ofthe RCJrame and the bracing system. In this pap er; results
ojexperimental investigations aimed at evaluating the seismic response
ojbrace-Jrame system and the level ojinteraction between the bracing
system and the RCJrame are discussed. For these investigations, cyclic
loading tests are conducted on scaled moment resistingJrames with and
without bracing. Test results confirm the ability oJthe bracing system to
enhance the strength capacity oj the RC frame while maintaining
adequate ductility. They also provide an insight into the causes and the
levels oj interaction between the strength capacities oj the bracing
system and the RCJrame.
