Seismic Fragility Curves for Steel and Reinforced Concrete Frames Based on Near-Field and Far-Field Ground Motion Records

Nazri, Fadzli Mohamed; Saruddin, Siti Nur Aqilah

doi:10.1007/s13369-015-1758-y

Cited by 11 publications

(2 citation statements)

References 12 publications

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“…Finally, the results of additive dynamic analysis were used for generating the fragility curves. Nazri and Saruddin [24] analyzed steel and concrete moment resisting frames under near and far field earthquakes using IDA, and, according to the fragility curve, they presented the possibility of reaching or exceeding damage limits for each structure at 5 levels of performance introduced in FEMA-273. HAZUS (Hazard US) is a well-known loss estimation methodology that defines five damage states, none, slight, moderate, extensive, and complete, using physical Discrete Dynamics in Nature and Society (qualitative) descriptions of damage to building elements.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Seismic Vulnerability of Steel and RC Moment Buildings Using HAZUS and Statistical Methodologies

Mansouri¹,

Hu²,

Shakeri³

et al. 2017

Discrete Dynamics in Nature and Society

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Designer engineers have always the serious challenge regarding the choice of the kind of structures to use in the areas with significant seismic activities. Development of fragility curve provides an opportunity for designers to select a structure that will have the least fragility. This paper presents an investigation into the seismic vulnerability of both steel and reinforced concrete (RC) moment frames using fragility curves obtained by HAZUS and statistical methodologies. Fragility curves are employed for several probability parameters. Fragility curves are used to assess several probability parameters. Furthermore, it examines whether the probability of the exceedence of the damage limit state is reduced as expected. Nonlinear dynamic analyses of five-, eight-, and twelve-story frames are carried out using Perform 3D. The definition of damage states is based on the descriptions provided by HAZUS, which gives the limit states and the associated interstory drift limits for structures. The fragility curves show that the HAZUS procedure reduces probability of damage, and this reduction is higher for RC frames. Generally, the RC frames have higher fragility compared to steel frames.

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Section: Introductionmentioning

confidence: 99%

Assessment of Seismic Vulnerability of Steel and RC Moment Buildings Using HAZUS and Statistical Methodologies

Mansouri¹,

Hu²,

Shakeri³

et al. 2017

Discrete Dynamics in Nature and Society

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show abstract

“…This group, which focuses on a detailed assessment of a structure, is the most practical and conventional method for the seismic evaluation of structures (Bazzurro et al 1998;Lin and Baker 2013;Liu and Kuang 2017;Zacharenaki et al 2013;Zhang et al 2017). Due to their probabilistic nature, fragility/vulnerability curves have been the subject of the majority of studies in recent years (Bakhshi and Asadi 2013;Farsangi et al 2014;Karimzadeh, Ghafory-Ashtiany et al 2022;Miano et al 2018;Nazri and Saruddin 2015).…”

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confidence: 99%

Fault-Tree Based Seismic Risk Evaluation and Retrofitting Strategy of Structures

Alinejad

Ghafory‐Ashtiany

2023

Preprint

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This paper provides a new methodology for seismic performance evaluation and retrofitting of structures using the combination of fault tree and incremental dynamic analysis to cover some of the limitation of the existing methods. These limitations include the qualitative consideration of performance objectives, the consideration of uncertainties, and the lack of a systematic method for determining the retrofitting strategy. In this method, first, the fault tree model of the structure's intended performance is drawn, considering possible failure modes. Then, using incremental dynamic analysis, the seismic fragility curves for all failure modes are derived. In the next step, having these fragility curves and using the fault tree analysis of the structure, the fragility curve of the whole structure is determined. By integrating the fragility curve of the structure and the seismic hazard curve of the site, the intended performance risk is calculated. This risk is a quantitative performance goal that can consider uncertainties. By using importance analysis and minimal cut sets of the fault tree, the risk-based retrofitting options are determined. To show the applicability of the proposed methodology, it is applied on a benchmark reinforced concrete structure in Europe that was designed and built without observing the new seismic standards. The collapse fragility curve and annual risk of collapse of this structure are determined. Using minimal cut sets and importance analysis of the structure’s fault tree, two retrofitting options are identified. The first retrofitting option is decreased collapse risk by 43% and the second one decreased it by 60%.

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Analytical seismic assessment for reinforced concrete moment frame residential buildings constructed in the Soviet Union Era in Almaty, Kazakhstan

Rashid,

Zhang,

Moon

et al. 2024

Bull Earthquake Eng

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Seismic Fragility Curves for Steel and Reinforced Concrete Frames Based on Near-Field and Far-Field Ground Motion Records

Cited by 11 publications

References 12 publications

Assessment of Seismic Vulnerability of Steel and RC Moment Buildings Using HAZUS and Statistical Methodologies

Assessment of Seismic Vulnerability of Steel and RC Moment Buildings Using HAZUS and Statistical Methodologies

Fault-Tree Based Seismic Risk Evaluation and Retrofitting Strategy of Structures

Analytical seismic assessment for reinforced concrete moment frame residential buildings constructed in the Soviet Union Era in Almaty, Kazakhstan

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