Seismic Fragility Evaluation of Lightly Reinforced Concrete-Block Shear Walls for Probabilistic Risk Assessment

Mojiri, Saeid; El‐Dakhakhni, Wael; Tait, Michael J.

doi:10.1061/(asce)st.1943-541x.0001055

Cited by 11 publications

(5 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The PBSD method is considered as a difficult method to evaluate the fragility of structures. 32 This method can be justified for evaluating the seismic fragility of bridges, shear walls, and structures with a small number of elements 33 ; however, it will be very complicated for a structure with a large number of elements. Unless, instead of the capacity of the elements, T A B L E 3 Far-field earthquake record specifications.…”

Section: Analysis Methodsmentioning

confidence: 99%

“…This method can be a reliable alternative to common methods such as performance‐based seismic design (PBSD). The PBSD method is considered as a difficult method to evaluate the fragility of structures 32 . This method can be justified for evaluating the seismic fragility of bridges, shear walls, and structures with a small number of elements 33 ; however, it will be very complicated for a structure with a large number of elements.…”

Section: Modeling Detailsmentioning

confidence: 99%

See 1 more Smart Citation

Fragility assessment of an outrigger structure system based on energy method

Goodarzi

Moradi

Jalali

et al. 2023

Structural Design Tall Build

View full text Add to dashboard Cite

Fragility curves development in structures has always been a focus of research interest among structural and earthquake engineers for which the maximum story drift is usually considered as the engineering demand parameter (EDP) known as the conventional approach. This paper aims at calculating the fragility curves of a tall building with outrigger braced system by considering the plastic strain energy as the EDP and compare it with the conventional approach. In addition, the effect of optimizing the position of outriggers on the exceedance probability of the structure under near-and far-fault seismic loadings is investigated in this paper. Fragility curves of this structure in four performance levels including immediate occupancy (IO), life safety (LS), collapse prevention (CP), and instability is extracted based on the conventional method.The fragility curves for the aforementioned performance levels are also extracted based on the plastic strain energy and compared with the conventional approach.The results have demonstrated that optimizing the location of the bracing system would lower the exceedance probability of the structure. Moreover, the exceedance probability of the investigated building with outrigger braced system under far-fault records in various levels is more than that of near-fault records. It is also concluded that the conventional approach would lead to more conservative results compared with the energy approach.

show abstract

Section: Analysis Methodsmentioning

confidence: 99%

Section: Modeling Detailsmentioning

confidence: 99%

Fragility assessment of an outrigger structure system based on energy method

Goodarzi

Moradi

Jalali

et al. 2023

Structural Design Tall Build

View full text Add to dashboard Cite

show abstract

“…The test results demonstrated the capability of lightly reinforced RM shear walls to adequately dissipate energy through nonlinear flexural response. Then, an analytical model was calibrated using the obtained experimental data [78], and fragility curves were developed as an essential component of PBD.…”

Section: Reinforced Masonry Shear Wallsmentioning

confidence: 99%

Towards Performance-Based Design of Masonry Buildings: Literature Review

Zeng,

2023

Buildings

View full text Add to dashboard Cite

Masonry is among the most widely used construction materials around the world. Contemporary masonry buildings are primarily designed to comply with prescriptive building code regulations. In recent decades, performance-based design (PBD) has gained increasing attention and achieved significant success in critical structures or infrastructure systems. Instead of being the first mover, the masonry research and practice community can be a faster follower in response to the design paradigm shift towards PBD for masonry buildings. A reliable performance assessment of masonry buildings is of paramount importance in the PBD framework. To facilitate this, this paper presents an up-to-date comprehensive literature review of experimental and analytical studies with emphasis on their contributions to advancement towards performance assessment of masonry buildings. This review categorized available works into two sub-topics: (1) traditional unreinforced masonry and (2) modern reinforced masonry. In each sub-topic, studies focusing on the structural behaviors of masonry at the component-level (i.e., masonry wall) are discussed first, followed by the building system-level-related studies. Through this literature review, the current state of the art and remaining research gaps are identified to provide guidance for future research needs and to pave the way for implementing PBD in the masonry industry.

show abstract

“…Celik and Ellingwood [27] implemented a reliability analysis-based simulation to determine seismic fragility curves and damage states. Mojiri et al [28] studied RC models by applying excitation generated by experimental shake tables. Using seismic probability risk assessment and probabilistic seismic demand analysis (PSDA) on experimental data, they determined the seismic demand levels and the corresponding fragility curves.…”

Section: Introductionmentioning

confidence: 99%

Assessment of fragility curve for steel frame construction under different categories of earthquakes

Lakušić¹

2022

JCE

View full text Add to dashboard Cite

The aim of this study is to investigate the effect of two categories of earthquake events on the fragility curves of steel building construction (structures with different number of stories) by considering relative lateral displacement as a damage criterion. The categories used to describe the change in the relative lateral position were chosen to be slight, moderate, extensive, and complete. Increased seismic demand increases the probability of exceeding. In other words, the greater the maximum earthquake acceleration, the higher is the probability of exceeding (PoE). In a 3-story structure, the increase in PGA increases the PoE of the structure at extensive failure levels. The fragility curves for the 2nd category earthquakes show a shift from the sleeping mode (gradual increase) to the standing state (rapid increase) compared to the 1st-class earthquakes in the 5-story model. Increasing the number of stories increases the PoE of extensive and large failures. The PoE of the extensive mode in the 7-story model was 10 and 15.5 % higher than that in the 5- and 3-story models, respectively. However, for the complete damage state, the PoE in the 5-story model was 6 and 7 % more than that in the 7- and 3-story models, respectively. Therefore, it can be concluded that increasing the number of stories increases the PoE, but this increase is more evident for the extensive failure level.

show abstract

Seismic Fragility Evaluation of Lightly Reinforced Concrete-Block Shear Walls for Probabilistic Risk Assessment

Cited by 11 publications

References 23 publications

Fragility assessment of an outrigger structure system based on energy method

Fragility assessment of an outrigger structure system based on energy method

Towards Performance-Based Design of Masonry Buildings: Literature Review

Assessment of fragility curve for steel frame construction under different categories of earthquakes

Contact Info

Product

Resources

About