Ahmed Mohamed Ahmed Elkady

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Related publications (26)

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Improved Seismic Design and Nonlinear Modeling Recommendations for Wide-Flange Steel Columns

Dimitrios Lignos, Ahmed Mohamed Ahmed Elkady

This paper presents the findings of parametric finite-element (FE) simulations of more than 50 wide-flange steel columns under cyclic loading. The column sizes, which are mostly highly ductile according to the current design practice in North America, are ...

2018

Experimental and Numerical Evaluation of Steel Columns for Performance-Based Seismic Assessment of Steel Moment Frames

Dimitrios Lignos, Ahmed Mohamed Ahmed Elkady, Alexander Riley Hartloper

This paper summarizes the findings of a long term experimental program corroborated with detailed finite element simulations that investigated the hysteretic behavior of wide-flange columns in steel moment-resisting frames (MRFs) designed in highly seismic ...

2017

Analytical Studies in Support of an Improved Approach to the Design of Acceleration-Sensitive Nonstructural Elements

Dimitrios Lignos, Ahmed Mohamed Ahmed Elkady

This paper summarizes a series of analytical studies that were conducted in connection with an improved approach for the design of acceleration-sensitive nonstructural elements. In the new approach, bracing to secure nonstructural elements to the structure ...

Applied Technology Council, Sponse2022

Dynamic Stability of Deep and Slender Wide-Flange Steel Columns – Full Scale Experiments

Dimitrios Lignos, Ahmed Mohamed Ahmed Elkady

In North America, a common design practice for steel frame buildings with perimeter steel special moment frames (SMFs) is to employ deep and slender wide-flange steel columns (i.e., range of column depth, d > 16 inches). Till recently, very little was know ...

Structural Stability Research Council2016

Revised ASCE-41 modeling recommendations for moment-resisting frame systems

Dimitrios Lignos, Ahmed Mohamed Ahmed Elkady, Alexander Riley Hartloper

Nonlinear static and dynamic analysis is utilized by engineers to evaluate the seismic behavior of new and existing structures in the context of performance-based earthquake engineering. Numerous experiments on steel moment-resisting frames and their compo ...

2018

Effect of composite beam action on the hysteretic behavior of fully-restrained beam-to-column connections under cyclic loading

Dimitrios Lignos, Ahmed Mohamed Ahmed Elkady

This paper assesses the composite beam effects on the hysteretic behavior of fully-restrained beam-to-column connections as part of steel moment-resisting frames (MRFs) designed in highly seismic regions. A practical approach is developed based on availabl ...

American Institute of Steel Construction (AISC)2016