Director

The performance of eccentric braces is to some extent considered as a new subject amongst Civil Engineers. In general, braces are the members that resist against lateral forces in a steel structure while the structures are under seismic excitation. Although the height of a structure and the structural system are the two parameters which can affect the inelastic behavior and response of the structure but these parameters have not been taken into consideration in the current design codes for designing of Eccentric Braced Frames (EBFs). In this study nine frames were exerted which were braced with three different eccentric braces (V, Inverted-V and Diagonal) in three different heights (4, 8 and 12 story).Then the frames were assessed by nonlinear static (pushover) analysis mainly based on FEMA 440 (2005). As a result of these frame analysis, it can be observed that the plastic hinges firstly occur at the fuse section of braces and then at the compressive members of th