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Estimation of the input energy of beam bridges by using near-fault input energy design spectra
https://orcid.org/0000-0002-3728-4129
https://orcid.org/0000-0001-9444-7011
Abstract In Chinese seismic design codes, soils are divided into four sites (I ~ IV), and each site is divided into three groups (G1 ~ G3) according to the design characteristic period (T g) again. The current studies only present the near-fault inelastic input energy (S EI) spectra corresponding to each site, while those corresponding to G1 ~ G3 of each site have not been reported. Therefore, in this study, 210 near-fault ground motion (GM) records were selected and classified according to G1 ~ G3 of Sites I ~ IV. By inputting the records into the BISPEC software, the effects of the characteristics of near-fault GMs and the parameters of hysteretic models on the near-fault S EI spectra were studied, and then the near-fault S EI design spectra corresponding to G1 ~ G3 of Sites I ~ IV were established. Moreover, by improving the previous procedure and using the near-fault S EI design spectra, an energy-based procedure for estimating the near-fault input energy of beam bridges was proposed, and its feasibility and safety were verified through a case study.
Highlights 210 near-fault ground motion (GM) records were selected and divided into four categories corresponding to Sites I~IV. The records of each site were divided into three groups (G1~G3) according to the design characteristic period again. The near-fault SEI design spectra corresponding to each group of each site were established. An energy-based procedure for estimating the near-fault input energy of beam bridges was proposed.
Estimation of the input energy of beam bridges by using near-fault input energy design spectra
https://orcid.org/0000-0002-3728-4129
https://orcid.org/0000-0001-9444-7011
Abstract In Chinese seismic design codes, soils are divided into four sites (I ~ IV), and each site is divided into three groups (G1 ~ G3) according to the design characteristic period (T g) again. The current studies only present the near-fault inelastic input energy (S EI) spectra corresponding to each site, while those corresponding to G1 ~ G3 of each site have not been reported. Therefore, in this study, 210 near-fault ground motion (GM) records were selected and classified according to G1 ~ G3 of Sites I ~ IV. By inputting the records into the BISPEC software, the effects of the characteristics of near-fault GMs and the parameters of hysteretic models on the near-fault S EI spectra were studied, and then the near-fault S EI design spectra corresponding to G1 ~ G3 of Sites I ~ IV were established. Moreover, by improving the previous procedure and using the near-fault S EI design spectra, an energy-based procedure for estimating the near-fault input energy of beam bridges was proposed, and its feasibility and safety were verified through a case study.
Highlights 210 near-fault ground motion (GM) records were selected and divided into four categories corresponding to Sites I~IV. The records of each site were divided into three groups (G1~G3) according to the design characteristic period again. The near-fault SEI design spectra corresponding to each group of each site were established. An energy-based procedure for estimating the near-fault input energy of beam bridges was proposed.
Estimation of the input energy of beam bridges by using near-fault input energy design spectra
https://orcid.org/0000-0002-3728-4129
https://orcid.org/0000-0001-9444-7011
Abstract In Chinese seismic design codes, soils are divided into four sites (I ~ IV), and each site is divided into three groups (G1 ~ G3) according to the design characteristic period (T g) again. The current studies only present the near-fault inelastic input energy (S EI) spectra corresponding to each site, while those corresponding to G1 ~ G3 of each site have not been reported. Therefore, in this study, 210 near-fault ground motion (GM) records were selected and classified according to G1 ~ G3 of Sites I ~ IV. By inputting the records into the BISPEC software, the effects of the characteristics of near-fault GMs and the parameters of hysteretic models on the near-fault S EI spectra were studied, and then the near-fault S EI design spectra corresponding to G1 ~ G3 of Sites I ~ IV were established. Moreover, by improving the previous procedure and using the near-fault S EI design spectra, an energy-based procedure for estimating the near-fault input energy of beam bridges was proposed, and its feasibility and safety were verified through a case study.
Highlights 210 near-fault ground motion (GM) records were selected and divided into four categories corresponding to Sites I~IV. The records of each site were divided into three groups (G1~G3) according to the design characteristic period again. The near-fault SEI design spectra corresponding to each group of each site were established. An energy-based procedure for estimating the near-fault input energy of beam bridges was proposed.
Estimation of the input energy of beam bridges by using near-fault input energy design spectra
Li, Yu (author) / Li, Chen (author) / Zhao, Guo-Hui (author)
2021-08-09
Article (Journal)
Electronic Resource
English
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