plan irregularity causes local damages being concentrated in the irregular buildings. progressive collapse is also the collapse of a large portion or whole building due to the local damages in the structure. the effect of irregularity on the progressive collapse potential of the buildings is investigated in this study. this is carried out by progressive collapse evaluation of the asymmetric mid...

Passively damped bracing systems in steel frames, in which the conventional materials of the joint are replaced by high damping viscoelastic materials, have the potential of being effective practical means for passive vibration control of dynamically loaded civil engineering structures. However, this potential can be realized only if the associated structural penalties are reduced within accept...

Special concentrically braced frames (SCBFs) located in regions close to earthquake faults may be subjected near-fault ground motions, often characterized by pulses with long periods. These could impose additional seismic demands on structures and increase the risk for structural collapse. Currently, there is limited research collapse of SCBFs under earthquakes. This paper uses a general simula...