Effects of pulse-type near-fault ground motions on the nonlinear seismic response of steel frames with inverted-V CBF and EBF systems
4 affiliations
- 1Department of Civil Engineering, The Faculty of Technology, Karadeniz Technical University
- 2Department of Civil Engineering, The Faculty of Engineering and Architecture, Recep Tayyip Erdogan University
- 3Department of Civil Engineering, The Faculty of Engineering, Yalova University
- 4Department of Civil Engineering, University of Maragheh
Abstract
The type of lateral load-resisting system plays a critical role in controlling the seismic response of steel structures subjected to strong ground motions. In this research, the structural performance of three-dimensional (3D) steel buildings designed with concentrically braced frames (CBFs) and eccentrically braced frames (EBFs) under near-fault ground excitations (NFGEs). A 3D steel building with dual bracing systems, including inverted-V-shaped EBFs and CBFs, were designed under the influence of NFGE. The response of 4 and 8-story structures subjected to NFGE was assessed using nonlinear time history analyses (NTHAs), which were categorized into small-pulse (SP), medium-pulse (MP), and large-pulse (LP) scenarios. This research aims to assess how pulse characteristics affect lateral story and inter-story displacements in buildings of different heights, as these displacement demands are critical indicators of seismic performance and structural strength degradation. This study provides a systematic evaluation of the seismic response of low- and mid-rise CBF and EBF systems under different pulse-type near-fault ground motions, highlighting the role of lateral story displacements as a key performance indicator. The results demonstrate that seismic performance is highly dependent on building height and pulse characteristics, with EBFs showing superior performance in mid-rise buildings under medium-pulse excitations, while CBFs are more effective in low-rise structures, emphasizing the need for height- and pulse-specific bracing strategies.
Related
- Training a continuous conditional diffusion-based model to simulate horizontal strike-slip ground motions for scenario seismic events
- Nonlinear control design for stabilization and tracking of a rotary inverted pendulum
- Addressing Measurement Error of Machine-Learned Physical Activity in Nonlinear Dose-Response Survival Analysis: Development and Evaluation of Accelerated Failure Time, Spline, and Simulation-Extrapolation Method
- Beyond the clicker: rethinking student response systems as pedagogical infrastructure for healthcare professions education
- Hybrid accelerated iterative scheme based on the Picard–Ishikawa approach for systems of nonlinear equations
BibTeX
@article{yurdakul2026effects,
title = {{Effects of pulse-type near-fault ground motions on the nonlinear seismic response of steel frames with inverted-V CBF and EBF systems}},
author = {Muhammet Yurdakul and Zeliha Tonyali and Hasan Sesli and Maziar Fahimi Farzam},
journal = {Scientific Reports},
year = {2026},
month = jul,
doi = {10.1038/s41598-026-62932-2},
url = {https://doi.org/10.1038/s41598-026-62932-2},
note = {CC BY},
}
RIS
TY - JOUR
TI - Effects of pulse-type near-fault ground motions on the nonlinear seismic response of steel frames with inverted-V CBF and EBF systems
AU - Muhammet Yurdakul
AU - Zeliha Tonyali
AU - Hasan Sesli
AU - Maziar Fahimi Farzam
PY - 2026
DA - 2026/07/01
JO - Scientific Reports
DO - 10.1038/s41598-026-62932-2
UR - https://doi.org/10.1038/s41598-026-62932-2
AB - The type of lateral load-resisting system plays a critical role in controlling the seismic response of steel structures subjected to strong ground motions. In this research, the structural performance of three-dimensional (3D) steel buildings designed with concentrically braced frames (CBFs) and eccentrically braced frames (EBFs) under near-fault ground excitations (NFGEs). A 3D steel building with dual bracing systems, including inverted-V-shaped EBFs and CBFs, were designed under the influence of NFGE. The response of 4 and 8-story structures subjected to NFGE was assessed using nonlinear time history analyses (NTHAs), which were categorized into small-pulse (SP), medium-pulse (MP), and large-pulse (LP) scenarios. This research aims to assess how pulse characteristics affect lateral story and inter-story displacements in buildings of different heights, as these displacement demands are critical indicators of seismic performance and structural strength degradation. This study provides a systematic evaluation of the seismic response of low- and mid-rise CBF and EBF systems under different pulse-type near-fault ground motions, highlighting the role of lateral story displacements as a key performance indicator. The results demonstrate that seismic performance is highly dependent on building height and pulse characteristics, with EBFs showing superior performance in mid-rise buildings under medium-pulse excitations, while CBFs are more effective in low-rise structures, emphasizing the need for height- and pulse-specific bracing strategies.
SN - 2045-2322
ER -