Effect of infills on seismic resilience of special steel moment resisting frames

Hejazi, M; Jalaeefar, Ali

doi:10.1016/j.istruc.2021.06.018

Cited by 10 publications

(4 citation statements)

References 24 publications

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“…Since previous research has shown that infills have a positive effect on increasing the strength of steel and concrete structures, in this study, the effect of the infills on the seismic resilience of the structure has been investigated. As the presented results show, interframes reduce the damage caused by F I G U R E 3 Sample view of 4-story frame 16 earthquakes and thus increase the resilience of the structure, which can be an effective step towards achieving the principles of sustainable development.…”

Section: Methodsmentioning

confidence: 78%

“…The obtained results of this paper are compared with reference [16] in which the effect of infills on seismic resilience of special steel moment resisting frames was investigated. The summary of the results is presented in Table 14.…”

Section: Comparison Of the Results Of Steel And Concrete Moment Framesmentioning

confidence: 99%

“…Hejazi and Jalaeefar investigated the effects of infills on the seismic resilience of special steel moment resisting frames. 16 The obtained results indicated that infills increased the resilience index as the risk level is increased.…”

Section: Introductionmentioning

confidence: 86%

“…It was actually found that this attempt can reduce the inter‐story drifts by 90% and improve the energy dissipation capacity up to three times. Hejazi and Jalaeefar investigated the effects of infills on the seismic resilience of special steel moment resisting frames 16 . The obtained results indicated that infills increased the resilience index as the risk level is increased.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of the seismic resilience of reinforced concrete special moment frames with infills

Hejazi

Jalaeefar

2022

Structural Concrete

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In this paper, the role of infills in seismic resilience of reinforced concrete moment frames with special ductility is investigated. For this purpose, frames of 4, 8, and 12 stories are simulated in OpenSees software in three cases, namely, bare frame, frame with infills, and frame with infills having openings. Using incremental dynamic analysis, their capacity and demands are evaluated and fragility curves are plotted via statistical methods. Finally, resilience index is calculated by quantifying seismic damages under a selection of 15 earthquake records. Based on the results, infills decrease structural losses and increase resilience in different hazard levels. The effect of infills on resilience index grows in higher hazard levels and this is much more impressive in low rise frames. In the other hand, infill openings, less decrease the resilience index in tall buildings than shorter ones.

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Section: Methodsmentioning

confidence: 78%

Section: Comparison Of the Results Of Steel And Concrete Moment Framesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 86%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Investigation of the seismic resilience of reinforced concrete special moment frames with infills

Hejazi

Jalaeefar

2022

Structural Concrete

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Quantitative evaluation and improvement of seismic resilience of a tall frame shear wall structure

Chen

2021

Structural Design Tall Build

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Tall buildings are an important part of a city, and their earthquake-induced damage or collapse will lead to heavy losses, extended repair time, and casualties. Therefore, it is essential to quantify and improve the resilience of tall buildings. To this end, this paper develops a component damage-based metric to characterize tall buildings' functionality loss and then proposes a general quantitative evaluation process to evaluate tall buildings' resilience. Next, the evaluation process is applied to a 42-story reinforced concrete frame shear wall building to demonstrate its applicability. Finally, retrofit strategies on nonstructural components are discussed to enhance the building's resilience. It can be concluded that the proposed metric can be effectively used to evaluate tall buildings' functionality loss. The building being studied has great seismic resilience, with resilience values of 99.95%, 98.68%, and 88.69% at service level earthquake (SLE), design level earthquake (DBE), and maximum considered earthquake (MCE), respectively. The influence of nonstructural components on seismic resilience is greater than that of structural components at SLE and DBE levels. It is an effective alternative to enhance the seismic resilience of tall buildings under SLE and DBE by improving the performance of partition walls, ceilings, and equipment.

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A preliminary general framework for seismic resilience assessment of slope engineering

Huang

2022

Bull Eng Geol Environ

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Effect of infills on seismic resilience of special steel moment resisting frames

Cited by 10 publications

References 24 publications

Investigation of the seismic resilience of reinforced concrete special moment frames with infills

Investigation of the seismic resilience of reinforced concrete special moment frames with infills

Quantitative evaluation and improvement of seismic resilience of a tall frame shear wall structure

A preliminary general framework for seismic resilience assessment of slope engineering

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