Seismic Evaluation of Steel Moment Frames Under Mainshock–Aftershock Sequence Designed by Elastic Design and PBPD Methods

Abdollahzadeh, Gholamreza; Mohammadgholipour, Ali; Omranian, Ehsan

doi:10.1080/13632469.2017.1387198

Cited by 29 publications

(3 citation statements)

References 21 publications

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“…Garcia (2012) examined the characteristics of a wide range of earthquakes and corresponding aftershocks on the seismic response of buildings and showed that the dominant period, as well as the duration of the main earthquake and aftershocks, were statistically weakly correlated. Therefore, the production of artificial seismic sequences from the main earthquake as a basis for the production of aftershocks, even with a smaller amplitude, does not make sense because the frequency and duration of the earthquake are completely different [9]. Therefore, it can be said that it is necessary to use real data to evaluate the performance of existing structures under seismic sequences.…”

Section: Introductionmentioning

confidence: 99%

“…Abdullahzadeh et al ( 2017) with the help of real seismic sequences and by examining the energy distribution in buildings designed by conventional elastic methods as well as modern plastic design methods based on performance, found that aftershocks have a destructive effect on floors that suffer more damage under the main earthquake. Have seen will have [9]. Recently, several researches have been conducted in the field of seismic evaluation of structures under seismic sequences, in all of which the effect of aftershock in increasing the vulnerability of the structure has been confirmed [10,11].…”

Section: Introductionmentioning

confidence: 99%

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Investigating the effectiveness of fluid viscous damper in reducing the effect of seismic sequence on steel bending frame designed on type c soil

Pourali

2023

jcer

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Aftershocks can always cause the collapse of structures damaged by the main earthquake. In this article, the seismic performance of an 8-story steel bending frame designed in c-type soil was first subjected to the seismic sequence of an earthquake and an aftershock, and then the same building with the addition of a fluid viscous damper (Fluid Viscous Damper) was evaluated. The results showed that the seismic performance of the studied frame under the effect of severe aftershocks with the presence of a liquid viscous damper is very different from the case without FVD. For example, the maximum displacement of the structural floors was reduced by 60% compared to the case without a damper. It was also found that while most of the aftershocks in buildings without dampers cause a significant increase in the permanent displacement of the roof, in the presence of dampers, this amount has decreased significantly, although in general, the damage caused by the effect of aftershocks on the building is much more az It will be from a state in which the structure is only subjected to the main earthquake

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigating the effectiveness of fluid viscous damper in reducing the effect of seismic sequence on steel bending frame designed on type c soil

Pourali

2023

jcer

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“…However, there are numerous contributes about the main-shock after-shock performance of steel (Abdollahzadeh, Mohammadgholipour, & Omranian, 2019;Abdollahzadeh & Sadeghi, 2018), RC (Jamnani, Amiri, & Rajabnejad, 2018;Salami, Kashani, & Goda, 2019) and masonry (Casolo, 2017;Mouyiannou, Penna, Rota, Graziotti, & Magenes, 2014) buildings, while a fewer about timber structures (Luo, He, Chen, & Li, 2021;Qin & Chouw, 2017). So far, there is no research that investigates the role of diverse pinching on structural resilience.…”

Section: Introductionmentioning

confidence: 99%

Effect of pinching on structural resilience: performance of reinforced concrete and timber structures under repeated cycles

Aloisio

Pelliciari

Bergami

et al. 2022

Structure and Infrastructure Engineering

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This article attempts to define pinching of two structural joints, reinforced concrete (RC) and wood ones. In particular, the research outlines differences and analogies between pinching of an RC portal and a Light Timber Frame (LTF) wall. This is done by focusing on the concavity of pinching in their response under repeated cycles, which produces differences in the energy dissipation. The response of the two structural archetypes under pseudo-static and dynamic simulations is analysed using the Atan hysteresis model modification. The truncated incremental dynamic analysis (TIDA) of the two systems modelled as single-degree-of-freedom (SDOF) oscillators yielded the fragility curves, approximated by a lognormal cumulative distribution (CDF). The stability of RC under repeated cycles reveals its significant resilience compared to LTF structures. The examination of the fragility functions supports a discussion about the relation between the pinching concavity and the notion of structural resilience by introducing a robustness index ranging from 0 to 1. Ultimately, a parametric analysis of a fictitious structural system derived from the timber one by varying the concavity of the pinching path leads to the estimation of the robustness index as a function of the pinching concavity.

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A Review on Performance-Based Plastic Design Method: Concept and Recent Developments

Leelataviwat

Doung

Naiyana

2021

Lecture Notes in Civil Engineering

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Seismic Evaluation of Steel Moment Frames Under Mainshock–Aftershock Sequence Designed by Elastic Design and PBPD Methods

Cited by 29 publications

References 21 publications

Investigating the effectiveness of fluid viscous damper in reducing the effect of seismic sequence on steel bending frame designed on type c soil

Investigating the effectiveness of fluid viscous damper in reducing the effect of seismic sequence on steel bending frame designed on type c soil

Effect of pinching on structural resilience: performance of reinforced concrete and timber structures under repeated cycles

A Review on Performance-Based Plastic Design Method: Concept and Recent Developments

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