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...

Soil-structure interaction analysis is one of the most challenging problems in field structural engineering. In this paper, two aspects less discussed literature, namely: (ⅰ) effect considering all three components near-field earthquake excitations instead just horizontal component, and (ⅱ) elimination part inter-story drifts caused by foundation rocking, have been investigated. Theoretical bot...

Abstract: There has been a significant increase in attention toward designing smart structures and vibration control of structures in recent decades, and numerous methods and algorithms have been developed and experimentally investigated. However, the majority of these studies used the shear frame models to represent structures. Since the simplified models do not reflect the realistic behavior ...

Seismic performance of a building is commonly evaluated by applying same design ground motions at each foundation. However, local soil conditions beneath likely vary, and these variations could result in out-of-phased the foundation locations. In this study, building’s responses during earthquakes were analyzed compared using out-of-phase motions. The 10-story, 90m-wide, reinforced concrete str...

In this study, the seismic inter-story drift of structures is estimated by a combination of mode-acceleration equations with the modelling of high-rise buildings with flexural and shear cantilever beams. In the equation presented for calculating the inter-story drift, having less knowledge of the building is adequate and this issue is of significance in estimating the nonstructural component fo...

This paper presents the key design points of buckling-restrained braced frames (BRBFs) by using the performance-based plastic design (PBPD) methodology. This method is based on energy-work balance concept and uses pre-selected target drift and yield mechanism as design criteria. Based on multi-mode pushover and time-history analyses, a simple equation is developed for computing yield drift rati...

The displacement fling-step pulse seldom signatures near-field earthquake in its ground motions. It is well recognized that the motion with velocity amplifies building drift larger than regular motion. Recent findings explain experiences minor damage to collapse not caused only by single earthquakes, which many cases are due repeated seismic performance of moment frames under studied, particula...

The seismic resilience of a system can be achieved by reducing its probability of failure during an earthquake, as well as reducing the consequences from such failures and the time to recovery. Within the perspective of this framework, this paper explores the physical resilience of facilities. Quantification of resilience is first approached from the broader societal context, from which the eng...