The constant damage inelastic displacement ratio for performance design of self-centering systems under far-field earthquake ground motions

P Amirchoupani, RN Farahani, G Abdollahzadeh - Structures, 2023 - Elsevier
In this research paper, the inelastic displacement ratio known as maximum nonlinear
displacement to maximum elastic displacement is determined at different periods of vibration …

Development of inelastic displacement ratio using constant energy-based damage index for performance-based design

P Amirchoupani, G Abdollahzadeh… - Bulletin of Earthquake …, 2023 - Springer
In this study, the inelastic displacement ratio (IDR) for far-field earthquake ground motions is
statistically evaluated by the modified energy damage indices, known as hysteresis energy …

General Substitute Frame Model (GSF) for efficient estimation of seismic demands of steel and RC moment frames

R Soleimani, H Hamidi - Engineering Structures, 2021 - Elsevier
This paper proposes an approach to simplify 2D moment-resisting frames (with equal or non-
equal bay lengths) to an equivalent single-bay framed MDOF model. This model, named the …

The evaluation of target displacement in structural systems using damage-based N2 (DN2) method under far-field ground motions for performance-based design …

R Nodeh Farahani, G Abdollahzadeh… - Bulletin of Earthquake …, 2024 - Springer
The aim of this paper is based on the simple nonlinear procedure founded on the Park-Ang
damage index model at different constant damage levels to evaluate the target displacement …

Quantifying the optimal time gap between consecutive events

G Abdollahzadeh, S Pourkalhor, A Vakhideh… - Asian Journal of Civil …, 2023 - Springer
In this study, a zero acceleration time gap is defined between consecutive events to ensure
that the structure comes to rest after the first seismic event in the seismic analysis of …

The modified energy-based method for seismic evaluation of structural systems with different hardening ratios and deterioration hysteresis models

RN Farahani, G Abdollahzadeh… - Periodica Polytechnica …, 2024 - pp.bme.hu
Prediction of target displacement in structural systems plays a significant role in performance-
based design and rehabilitation of structures. In this study, the γ factor for different hardening …

The development of damage-based energy factor under far-fault ground motions for the seismic demand evaluation of structural systems in energy-balance theorem

P Amirchoupani, RN Farahani… - Soil Dynamics and …, 2025 - Elsevier
The objective of this investigation is to develop the damage-based energy factor (γ) for
seismic demand evaluation of Reinforced Concrete (RC) and steel structures under …

[HTML][HTML] A conceptual design and structural analysis of thick panel kirigami for deployable volumetric modular structure

AS Rahardjo, S Navaratnam, G Zhang, K Nguyen - Structures, 2024 - Elsevier
This study addresses key challenges in modular construction, such as transportation and
lifting limitations, by introducing a kirigami-inspired modular structure that folds into a …

[HTML][HTML] Design response spectrum based on shock-waveform decomposition method

Y Fu, QM Li - Soil Dynamics and Earthquake Engineering, 2024 - Elsevier
This study applies the shock-waveform (SW) decomposition method, originally developed
for mechanical shock analysis, to earthquake ground motions. It reveals a general shape …

The damage-based inelastic displacement ratio for performance-based design of fully self-centering systems under pulse-like near-fault earthquake ground motions

P Amirchoupani, RN Farahani, G Abdollahzadeh - Structures, 2024 - Elsevier
In this investigation, the damage-based inelastic displacement ratio (IDR) for fully self-
centering (SC) systems with flag-shaped hysteresis behavior is determined under pulse-like …