Proposed updates to the ASCE 41 nonlinear modeling parameters for wide-flange steel columns in support of performance-based seismic engineering

DG Lignos, AR Hartloper, A Elkady… - Journal of Structural …, 2019 - ascelibrary.org
Nonlinear static and dynamic analyses are utilized by engineers for performance-based
seismic risk evaluation of new and existing structures. In this context, nonlinear component …

Seismic evaluation and retrofit of existing buildings

American Society of Civil Engineers - 2023 - ascelibrary.org
Prepared by the Seismic Evaluation and Retrofit of Existing Buildings Committee of the
Codes and Standards Activities Division of the Structural Engineering Institute of ASCE …

Development of collapse‐consistent loading protocols for experimental testing of steel columns

Y Suzuki, DG Lignos - Earthquake Engineering & Structural …, 2020 - Wiley Online Library
In order to effectively utilize results from quasi‐static cyclic testing on structural components
for the earthquake‐induced collapse risk quantification of structures, the need exists to …

Experimental evaluation of steel columns under seismic hazard-consistent collapse loading protocols

Y Suzuki, DG Lignos - Journal of Structural Engineering, 2021 - ascelibrary.org
This paper presents results from 21 large-scale experiments on steel columns that examined
their collapse behavior as related to steel moment resisting frames (MRFs). The test …

Experimental evaluation and numerical modeling of wide-flange steel columns subjected to constant and variable axial load coupled with lateral drift demands

J Cravero, A Elkady, DG Lignos - Journal of Structural Engineering, 2020 - ascelibrary.org
This paper presents results from an experimental evaluation on the pre-and post-buckling
behavior of 12 steel wide-flange cantilever columns under axial load and lateral drift …

Overall improvement of seismic resilience by rocking foundation and trade-off implications

A Esmatkhah Irani, MH Bonab, FB Sarand… - International Journal of …, 2023 - Springer
Rocking isolation is one of the most effective methods to minimize the structural damage to
bridge piers caused by earthquakes. The system safeguards the structure from seismic …

Full-Scale Experiments of Cyclically Loaded Welded Moment Connections with Highly Dissipative Panel Zones and Simplified Weld Details

A Skiadopoulos, DG Lignos, M Arita… - Journal of Structural …, 2023 - ascelibrary.org
This paper presents the experimental results of two welded unreinforced flange-welded web
(WUF-W) beam-to-column connections that defy the current design paradigm of prequalified …

Pseudo‐dynamic hybrid simulations of steel eccentrically braced frames equipped with cast steel replaceable modular yielding links

P Mortazavi, OS Kwon… - … Engineering & Structural …, 2023 - Wiley Online Library
Previous studies have underlined the importance of establishing a database of high‐fidelity
benchmark experimental test results under random loading histories such as earthquake …

Shake‐table tests on steel moment‐resisting frames with detachable yielding zones

R Landolfo, M D'Aniello, S Safaei… - Earthquake …, 2024 - Wiley Online Library
This article presents an experimental campaign based on shake table tests conducted as
part of the European research project FUTURE, funded in the framework of the H2020 …

Hysteretic behavior of moment-resisting frames considering slab restraint and framing action

H El Jisr, A Elkady, DG Lignos - Journal of Structural Engineering, 2020 - ascelibrary.org
This paper examines the influence of framing action and slab continuity on the hysteretic
behavior of composite steel moment-resisting frames (MRFs) by means of high-fidelity …