Quantifying response variability of steel moment frames due to seismic uncertainties

Norouzi, Amir Hossein; Gerami, Mohsen

doi:10.1007/s42107-019-00115-3

Cited by 2 publications

(1 citation statement)

References 16 publications

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“…The proximity to the main frequencies of soil layers with the structures on the surface of earth is considered as one of the important issues in this regard [1,2]. The effect of the SCI on free-field movements is very important since it decreases and increases the vibrations in some places, depending on the soil, density, and urban structural order [3,4]. *Corresponding Author Institutional Email: mgerami@semnan.ac.ir (M. Gerami) These studies started from the analyses with one and two-dimensional aspect and developed into 3D analyses [5,6].…”

Section: Introductionmentioning

confidence: 99%

Effects of Multiple Structure-soil-structure Interactions Considering the Earthquake Waveform and Structures Elevation Effects

Norouzi

Gerami

Vahdani

et al. 2020

IJE

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The simultaneous effects of soil and existing structures are known as the site-city interaction (structure-soil-structure). The impact of site-city interaction on structure behavior is effective. Thus, this interaction in some regions decreases the responses while increases in other areas. In addition, the site-city interaction of many parameters including the soil type, density rate, height of buildings is effective for evaluation. So far, none of investigation has focused on the effects of nature and shape of seismic wave and the plate which affects these waves in site-city interaction in three dimensions. Thus, the present study aimed to consider the effect of parameters mentioned in structure and foundation responses. The results indicated that the highest reduction for Love wave occurs in acceleration responses of structure in the cluster relative to the individual state, compared to the rest of the waves. Therefore, the reduction is about 30 and 50% for the base and top nodes of structures, respectively.

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Section: Introductionmentioning

confidence: 99%

Effects of Multiple Structure-soil-structure Interactions Considering the Earthquake Waveform and Structures Elevation Effects

Norouzi

Gerami

Vahdani

et al. 2020

IJE

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Numerical study of reliability index of structure rehabilitated with steel shear wall

Maddahi

Gerami

Naderpour

2023

Proceedings of the Institution of Civil Engineers - Structures

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Uncertainties in seismic demand and structural capacity create conservatism in the acceptance criteria of structural performance levels. This conservatism can be reduced and designs optimised by considering and reducing uncertainties. In seismic rehabilitation, a secondary system added to an existing structure has probabilistic parameters that can lead to changes in existing uncertainties. In this work, a steel moment frame was rehabilitated with a steel shear wall (SSW). Structural uncertainties were investigated by considering probabilistic variables of the force–deformation relationship of the SSW. The results showed that structural uncertainty increased the total uncertainty by 2.0–9.3%. Previous studies that have not considered structural uncertainty due to the force–deformation relationship and may not provide results with appropriate conservatism. As a result, the dispersion of the total uncertainties of a structure rehabilitated with a SSW is close to the dispersion value of a moment frame equipped with a brace, but is more than the dispersion value of the moment frame structure. A parametric study of the reliability index was performed based on probabilistic variables. Based on the results, the structural uncertainty reduced the reliability index by 0.57–1.28%.

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Quantifying response variability of steel moment frames due to seismic uncertainties

Cited by 2 publications

References 16 publications

Effects of Multiple Structure-soil-structure Interactions Considering the Earthquake Waveform and Structures Elevation Effects

Effects of Multiple Structure-soil-structure Interactions Considering the Earthquake Waveform and Structures Elevation Effects

Numerical study of reliability index of structure rehabilitated with steel shear wall

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