Probabilistic seismic demand and capacity models and fragility curves for reticulated structures under far-field ground motions

Zhong, Jie; Jun-ping, Zhang; Zhi, Xu; Fan, Feng

doi:10.1016/j.tws.2019.01.032

Cited by 20 publications

(3 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The fragility function or curve is understood as the 'fingerprint' of a particular building. It reflects the structural response of an individual structure due to external seismic load with the fragility curves developed to predict the structure's potential damage during an earthquake event [28], [29]. These assess seismic risk and indicate the level of physical damage in the strongest seismic main shock [30].…”

Section: Methodsmentioning

confidence: 99%

“…Seismic isolation resists earthquake load by converting its energy into a significant isolator deformation usually placed between the sub-and superstructures. This isolator absorbs enormous kinetic energy from the vibration and displaces the superstructure as a rigid body unshaken by the ground motion [14]- [16]. This research demonstrates how the fragile function of existing structures, retrofitted by FRP, BRBF, and shear walls, is used to evaluate the rational efficacy of the adopted strategy.…”

Section: Introductionmentioning

confidence: 92%

See 1 more Smart Citation

Evaluating Retrofitting Strategies of Low-to-Mid-Rise Reinforced Concrete Structure Based on Its Seismic Fragility

Rahma¹,

Sangadji²,

Virawan³

et al. 2023

Int. J. Adv. Sci. Eng. Inf. Technol.

View full text Add to dashboard Cite

In earthquake-prone regions such as Indonesia, this situation has drawn public attention and led to difficulties in implementing certain policies and decision-making. One of the challenging issues in seismic risk reduction is evaluating the efficacy of seismic retrofitting the existing low-to-mid reinforced concrete building. Therefore, this research evaluates the retrofitting of low-tomid-rise reinforced concrete structures to evaluate the efficacy of the retrofitting strategy rationally using Fiber Reinforced Plastic (FRP), Buckling Restrained Braced Frame (BRBF), and shear wall strategies. Rusunawa at Cilacap, a mid-rise RC apartment for lowincome people, was selected as a benchmark building to compare existing and retrofitted seismic fragility. Furthermore, a 3D computer model was developed to predict the seismic response of the structure using a nonlinear static (pushover) analysis. The pushover method produces a capacity curve, showing that the unreinforced structure has a maximum base shear value of 15.2x10 3 kN. While the reinforcement of low to medium rise reinforced concrete structures using the Fiber Reinforced Plastic strategy has a maximum base shear value of 15.3x10 3 kN, then reinforcement using the Buckling Restrained Braced Frame strategy with a maximum base shear value of 16.2x10 3 kN. The shear wall reinforcement has a value maximum base shear of 19.7x103 kN. The capacity curves as the analysis outputs were then converted into the fragility and used to rationalize the probabilistic value of the damage states between existing and retrofitted buildings.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 92%

Evaluating Retrofitting Strategies of Low-to-Mid-Rise Reinforced Concrete Structure Based on Its Seismic Fragility

Rahma¹,

Sangadji²,

Virawan³

et al. 2023

Int. J. Adv. Sci. Eng. Inf. Technol.

View full text Add to dashboard Cite

show abstract

“…The main purpose of the PSDM is to establish a probabilistic relationship between the intensity of ground motion and the seismic demand of a certain type of structure. Under the assumption that the seismic demand D of the structure and peak ground motion IM obey a lognormal distribution, the failure probability of the structure is expressed as follows [ 30 ]: …”

Section: Vulnerability Model For Substations With Different Voltage Levelsmentioning

confidence: 99%

Evaluation method on seismic risk of substation in strong earthquake area

et al. 2021

View full text Add to dashboard Cite

Frequent earthquakes in strong earthquake areas pose a great threat to the safety operation of electric power facilities. There exists a pressing research need to develop an assessment method for the seismic risk of substations, i.e., the hubs of power system networks. In this study, based on Incremental Dynamic Analysis (IDA), Probabilistic Seismic Demand Model (PSDM) and reliability theory, a vulnerability model for a substation is obtained, based on considering the relationships between Peak Ground Acceleration (PGA) and four seismic damage states (complete, extensive, moderate, and slight.) via a probabilistic approach. After an earthquake, the scope of influence and PGA distribution are evaluated using information recorded by the seismic observation stations, based on using interpolation or an empirical formula for the PGA attenuation. Therefore, the seismic risk can be evaluated by combining ground motion evaluation and the pre-built vulnerability model. The Wuqia- Kashgar area of Xinjiang was selected as the study area; it is an Earthquake-prone area, and one of the starting points for new energy transmission projects in China. Under a hypothetical earthquake (MS 7.9), the seismic risk of the substations was evaluated. The results show that: this method is able to give the probabilities of the four damage states of the substations, four substations close to the epicenter only have a probability of slight damage (45%-88%) and other substations are safer.

show abstract

Seismic Vulnerability Analysis of UHV Flat Wave Reactor Based on Probabilistic Seismic Demand Model

Cui

Che

2022

Proceedings of the 4th International Conference on Performance Based Design in Earthquake Geotechnical Engineering (Beijing 202

View full text Add to dashboard Cite

Probabilistic seismic demand and capacity models and fragility curves for reticulated structures under far-field ground motions

Cited by 20 publications

References 22 publications

Evaluating Retrofitting Strategies of Low-to-Mid-Rise Reinforced Concrete Structure Based on Its Seismic Fragility

Evaluating Retrofitting Strategies of Low-to-Mid-Rise Reinforced Concrete Structure Based on Its Seismic Fragility

Evaluation method on seismic risk of substation in strong earthquake area

Seismic Vulnerability Analysis of UHV Flat Wave Reactor Based on Probabilistic Seismic Demand Model

Contact Info

Product

Resources

About