This paper proposes a new mechanics-based model for the seismic design of beam-to-column panel zone joints in steel moment-resisting frames. The is based on realistic shear stress distributions retrieved from continuum finite element (CFE) analyses representative geometries. Comparisons with comprehensive experimental data set suggest that proposed predicts stiffness and strength noteworthy acc...

External installation of steel braces is an effective approach to increase the lateral load resistance moment-resisting frames. However, effects existence on robustness frames resist progressive collapse still not clear because little study has been carried out. To fill this gap, in paper, six multistory subframes (three bare and three braced frames) were fabricated tested. Test results indicat...

Abstract Developing fragility functions is the essential step in incorporating important uncertainties next-generation performance-based earthquake engineering (PBEE) methodology. The present paper aimed to involve record-to-record variability as well modelling uncertainty sources developing curves at collapse limit state. In this article, order reduce dispersion of uncertainties, Group Method ...

The significance of the seismic rotational components have been overlooked in the seismic evaluation of structural behavior. As researchers have measured seismic components more accurately using sensitive rotational velocity sensor, it was observed that the magnitude of rotational components is considerable and could not be neglected. Hence, some parts of seismic damage or failure of structures...

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...

In the present study, ten steel-moment resisting frames (SMRFs) having different numbers of stories ranging from 3 to 20 stories and fundamental periods of vibration ranging from 0.3 to 3.0 second were optimized subjected to a set of earthquake ground motions using the concept of uniform damage distribution along the height of the structures. Based on the step-by-step optimization algorithm dev...

The application of Heuristic Search Methods for the earthquake resistant design of structural frames is discussed. The Tabu Search method was selected for application to structural weight optimization of steel moment frame structures. A computer program was developed that uses Tabu Search for weight minimization of two-dimensional framed structures. Written in the FORTRAN computer language, the...