Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Quantification and parametric investigation for plan asymmetric low-rise steel frame structure considering soil-structure interaction under vertical ground motion
https://orcid.org/https://orcid.org/0000-0002-8526-8641
Most of the seismic codes suggest that the near-fault vertical ground motion component must be considered for certain special cases. There are no specific recommendations made for modelling the asymmetric structure with soil-structure interaction. This research studies low-rise asymmetric steel frame structures with soil-structure interaction using far-field infinite soil elements under horizontal earthquake alone (H case) and simultaneous horizontal and vertical earthquake (H + V case). Initially, soil structure is quantified using four near-fault without pulse ground accelerations on a symmetric single-storey and G + 2 storey steel frame. The nonlinear dynamic implicit analysis examines structural parameters and earthquake data to determine structure behaviour. Critical earthquake-related parameters include the ratio of peak ground vertical to horizontal acceleration (V/H), peak ground horizontal acceleration (PGHA), peak ground vertical acceleration (PGVA), and critical structure-related parameters include horizontal acceleration at the top node, horizontal displacement at the top node, and axial force in the bottom column. A parametric analysis of 40% and 60% plan asymmetric single and G + 2 storey steel frames with SSI was also performed. According to the parametric analysis, the H + V case has a greater influence on single-storey and G + 2 storey frame structures as plan irregularity increases. Hence, plan asymmetric low-rise steel frame with SSI should be designed for vertical ground motions with V/H ratios greater than one.
Quantification and parametric investigation for plan asymmetric low-rise steel frame structure considering soil-structure interaction under vertical ground motion
https://orcid.org/https://orcid.org/0000-0002-8526-8641
Most of the seismic codes suggest that the near-fault vertical ground motion component must be considered for certain special cases. There are no specific recommendations made for modelling the asymmetric structure with soil-structure interaction. This research studies low-rise asymmetric steel frame structures with soil-structure interaction using far-field infinite soil elements under horizontal earthquake alone (H case) and simultaneous horizontal and vertical earthquake (H + V case). Initially, soil structure is quantified using four near-fault without pulse ground accelerations on a symmetric single-storey and G + 2 storey steel frame. The nonlinear dynamic implicit analysis examines structural parameters and earthquake data to determine structure behaviour. Critical earthquake-related parameters include the ratio of peak ground vertical to horizontal acceleration (V/H), peak ground horizontal acceleration (PGHA), peak ground vertical acceleration (PGVA), and critical structure-related parameters include horizontal acceleration at the top node, horizontal displacement at the top node, and axial force in the bottom column. A parametric analysis of 40% and 60% plan asymmetric single and G + 2 storey steel frames with SSI was also performed. According to the parametric analysis, the H + V case has a greater influence on single-storey and G + 2 storey frame structures as plan irregularity increases. Hence, plan asymmetric low-rise steel frame with SSI should be designed for vertical ground motions with V/H ratios greater than one.
Quantification and parametric investigation for plan asymmetric low-rise steel frame structure considering soil-structure interaction under vertical ground motion
https://orcid.org/https://orcid.org/0000-0002-8526-8641
Most of the seismic codes suggest that the near-fault vertical ground motion component must be considered for certain special cases. There are no specific recommendations made for modelling the asymmetric structure with soil-structure interaction. This research studies low-rise asymmetric steel frame structures with soil-structure interaction using far-field infinite soil elements under horizontal earthquake alone (H case) and simultaneous horizontal and vertical earthquake (H + V case). Initially, soil structure is quantified using four near-fault without pulse ground accelerations on a symmetric single-storey and G + 2 storey steel frame. The nonlinear dynamic implicit analysis examines structural parameters and earthquake data to determine structure behaviour. Critical earthquake-related parameters include the ratio of peak ground vertical to horizontal acceleration (V/H), peak ground horizontal acceleration (PGHA), peak ground vertical acceleration (PGVA), and critical structure-related parameters include horizontal acceleration at the top node, horizontal displacement at the top node, and axial force in the bottom column. A parametric analysis of 40% and 60% plan asymmetric single and G + 2 storey steel frames with SSI was also performed. According to the parametric analysis, the H + V case has a greater influence on single-storey and G + 2 storey frame structures as plan irregularity increases. Hence, plan asymmetric low-rise steel frame with SSI should be designed for vertical ground motions with V/H ratios greater than one.
Quantification and parametric investigation for plan asymmetric low-rise steel frame structure considering soil-structure interaction under vertical ground motion
Asian J Civ Eng
Ahiwale, Dhiraj D. (Autor:in) / Patil, Ajit N. (Autor:in)
Asian Journal of Civil Engineering ; 24 ; 2337-2353
01.11.2023
17 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Seismic Response of Steel Frame by Considering Soil-Structure Interaction under Seismic Sequence
| DOAJ | 2021
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