Incremental dynamic analysis of wood-frame houses in Canada: Effects of dominant earthquake scenarios on seismic fragility

Goda, Katsuichiro; Yoshikawa, Hiromichi

doi:10.1016/j.soildyn.2013.01.011

Cited by 10 publications

(3 citation statements)

References 21 publications

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“…The fragility curves are provided for regular and irregular structures [23]. Seismic fragility analysis of structures using common analytical methodology has been extensively studied, including irregular structures [24], masonry buildings [25], wooden structures [26], and public buildings [27]. It was observed, with the exception of [23,28], that a limited number of studies have provided fragility curves using neural networks to reduce computational efforts.…”

Section: Shock and Vibrationmentioning

confidence: 99%

Seismic Failure Probability of a Curved Bridge Based on Analytical and Neural Network Approaches

Karimi-Moridani

Zarfam

Ghafory‐Ashtiany

2017

Shock and Vibration

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This study focuses on seismic fragility assessment of horizontal curved bridge, which has been derived by neural network prediction. The objective is the optimization of structural responses of metaheuristic solutions. A regression model for the responses of the horizontal curved bridge with variable coefficients is built in the neural networks simulation environment based on the existing NTHA data. In order to achieve accurate results in a neural network, 1677 seismic analysis was performed in OpenSees. To achieve better performance of neural network and reduce the dimensionality of input data, dimensionality reduction techniques such as factor analysis approach were applied. Different types of neural network training algorithm were used and the best algorithm was adopted. The developed ANN approach is then used to verify the fragility curves of NTHA. The obtained results indicated that neural network approach could be used for predicting the seismic behavior of bridge elements and fragility, with enough feature extraction of ground motion records and response of structure according to the statistical works. Fragility curves extracted from the two approaches generally show proper compliance.

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Section: Shock and Vibrationmentioning

confidence: 99%

Seismic Failure Probability of a Curved Bridge Based on Analytical and Neural Network Approaches

Karimi-Moridani

Zarfam

Ghafory‐Ashtiany

2017

Shock and Vibration

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“…The collapse capacity and dynamic instability of inelastic nondeteriorating SDOF systems were investigated based on the IDA method [39]. Furthermore, seismic fragility and progressive collapse fragility was investigated by performing the IDA for conventional wood-framed houses and low-rise reinforced concrete framed building structures, respectively [40,41].…”

Section: Introductionmentioning

confidence: 99%

Seismic Collapse Analysis of Concentrically-Braced Frames by the Ida Method

Yang¹,

Li²,

Dong³

et al. 2017

Volume 13 Number 3

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Steel concentrically-braced frames (CBFs) as seismic lateral force resisting systems have been widely used in seismic regions. The incremental dynamic analysis (IDA) is adopted to construct the collapse ductility spectrum for the CBF considering the P-Δ effect and sudden loss in strength and stiffness, which is physically more meaningful than existing baseline criteria. The design performance plot is constructed by newly combining the collapse ductility spectrum with ductility demand spectrum on the same figure, from which the threshold period and design ductility region for the frame are determined. A parametric study is conducted for the CBF over the full range of periods and parameters. The results show that the reserve capacity of the CBF contributes appreciably to collapse prevention, and the presented approach is more suitable for assessing the collapse of CBFs with dynamic instability. For moderate seismic regions, the threshold periods of the CBF determined by both the collapse ductility spectrum and existing baseline criteria are quite close. However, for high seismic regions, using the global drift angle limit may yield non-conservative results, since it fails to address the dynamic instability of CBFs with short periods.

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“…To assess dam safety requires an appropriate evaluation procedure with acceptance criteria for identifying the performance levels. The incremental dynamic analysis (IDA) (Vamvatsikos & Cornell, 2002) is proposed for the estimation of seismic demand and capacity of structures by subjecting the structure to several ground motions, each scaled to multiple levels of seismic intensity, and has been applied to assess collapse capacity of buildings (Goda & Yoshikawa, 2013;Zafeirakos, Gerolymos, & Drosos, 2013) and bridges (Mander, Dhakal, Mashiko, & Solberg, 2007). The result in terms of IDA curves is used to define limit states of the structures.…”

Section: Introductionmentioning

confidence: 99%

Seismic performance assessment of arch dams using incremental nonlinear dynamic analysis

Pan

Feng

2014

European Journal of Environmental and Civil Engineering

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In this paper, an approximately incremental dynamic analysis (IDA) is presented for seismic performance assessment of arch dams. The nonlinear seismic analysis of arch dams involves the effects of contraction joint opening, cracking of concrete and foundation radiation damping. Three damage measures, i.e. the maximum joint opening, the cracking depth on the dam-foundation interface and the extent of cracking in the upper portion of the dam, associated with the IDA curves are suggested to identify the performance levels of arch dams. The Dagangshan arch dam (210 m high) under construction in China is used as the case study. Although there is slight cracking on the dam-foundation interface during earthquake with the peak ground acceleration (PGA) up to .30 g, the dam exhibits nearly linear behaviour with contraction joints closing and can be approximately considered to have serviceability performance. The dam suffers severe damage on the dam-foundation interface and in the upper portion, and it is repairable under the design earthquake (PGA = .56 g) or the check earthquake (PGA = .66 g). The collapse prevention performance of the dam is achieved when the PGA reaches 1.10 g, in which case, the horizontal cracking in the upper portion penetrates the dam blocks and generates partially free cantilevers that control the dynamic stability of the structure.

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Incremental dynamic analysis of wood-frame houses in Canada: Effects of dominant earthquake scenarios on seismic fragility

Cited by 10 publications

References 21 publications

Seismic Failure Probability of a Curved Bridge Based on Analytical and Neural Network Approaches

Seismic Failure Probability of a Curved Bridge Based on Analytical and Neural Network Approaches

Seismic Collapse Analysis of Concentrically-Braced Frames by the Ida Method

Seismic performance assessment of arch dams using incremental nonlinear dynamic analysis

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