SIMPLIFIED ANALYSIS OF STEEL FRAMES

Simplified structural analysis of steel portal frames developed from structural optimization

A parametric study, based on design optimization using distributed genetic algorithm, is conducted to develop a reliable design procedure for steel portal frames. The efforts are made to modify distributed genetic algorithm in order to enhance the quality of performance and accelerate the convergence to possible optimum solutions. The modification includes defining a state-of-art mutation schem...

Advanced Analysis of Space Steel Frames

Minlp Optimization of Steel Frames

ABSTRACT: The paper presents the discrete dimension optimization of unbraced rigid steel plane frames. The optimization of steel frames was carried out by the Mixed-Integer Non-linear Programming (MINLP) approach. The MINLP is a combined discrete-continuous optimization technique. It performs the discrete optimization of discrete decisions simultaneously with the continuous optimization of cont...

Advanced Analysis of Steel Frames Using Parallel Processing and Vectorization

Advanced methods of analysis have shown promise in providing economical building structures through accurate evaluation of inelastic structural response. One method of advanced analysis is the plastic zone (distributed plasticity) method. Plastic zone analysis often has been deemed impractical due to computational expense. The purpose of this article is to illustrate applications of plastic zon...

Nonlinear Analysis of Steel Frames with Ductile Connections

One of the typically damaged steel beam-column connection during the Northridge earthquake of 1994 was bolted-web, welded-flange (BWWF), now known as “pre-Northridge” connection. Proposed post-Northridge connections are more ductile and capable of dissipating more energy, thus improving the behavior of steel moment resisting frames (SMRF). The post-Northridge connections with added ductility wi...