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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Influence of Ground Motion Characteristics on the Seismic Vulnerability of Bridges
https://orcid.org/http://orcid.org/0000-0003-0474-4202
This study focuses on understanding and quantifying the differences in vulnerability of highway bridges when subjected to near-field pulse-like ground motions and long-duration records as compared to widely available far-field ground motions that are short duration. For this purpose, a case-study highway bridge located in the Himalayan region is selected. Suites of near-field pulse-like and long-duration ground motions are selected that are spectrally equivalent to recorded far-field short-duration ground motions widely adopted for the design and assessment of bridges. A detailed FE model of the bridge is developed, and a set of nonlinear time history analyses is performed for each ground motion suite at numerous scaled intensity levels to develop seismic fragility curves. Results reveal that there is a 33% difference in the median fragility estimates of complete damage state between short- and long-duration record sets and a 25% difference between long duration and pulse-like record sets. The findings highlight the inclusion of ground motion duration and velocity pulse-like effects for the design and construction of highway bridges.
Influence of Ground Motion Characteristics on the Seismic Vulnerability of Bridges
https://orcid.org/http://orcid.org/0000-0003-0474-4202
This study focuses on understanding and quantifying the differences in vulnerability of highway bridges when subjected to near-field pulse-like ground motions and long-duration records as compared to widely available far-field ground motions that are short duration. For this purpose, a case-study highway bridge located in the Himalayan region is selected. Suites of near-field pulse-like and long-duration ground motions are selected that are spectrally equivalent to recorded far-field short-duration ground motions widely adopted for the design and assessment of bridges. A detailed FE model of the bridge is developed, and a set of nonlinear time history analyses is performed for each ground motion suite at numerous scaled intensity levels to develop seismic fragility curves. Results reveal that there is a 33% difference in the median fragility estimates of complete damage state between short- and long-duration record sets and a 25% difference between long duration and pulse-like record sets. The findings highlight the inclusion of ground motion duration and velocity pulse-like effects for the design and construction of highway bridges.
Influence of Ground Motion Characteristics on the Seismic Vulnerability of Bridges
https://orcid.org/http://orcid.org/0000-0003-0474-4202
This study focuses on understanding and quantifying the differences in vulnerability of highway bridges when subjected to near-field pulse-like ground motions and long-duration records as compared to widely available far-field ground motions that are short duration. For this purpose, a case-study highway bridge located in the Himalayan region is selected. Suites of near-field pulse-like and long-duration ground motions are selected that are spectrally equivalent to recorded far-field short-duration ground motions widely adopted for the design and assessment of bridges. A detailed FE model of the bridge is developed, and a set of nonlinear time history analyses is performed for each ground motion suite at numerous scaled intensity levels to develop seismic fragility curves. Results reveal that there is a 33% difference in the median fragility estimates of complete damage state between short- and long-duration record sets and a 25% difference between long duration and pulse-like record sets. The findings highlight the inclusion of ground motion duration and velocity pulse-like effects for the design and construction of highway bridges.
Influence of Ground Motion Characteristics on the Seismic Vulnerability of Bridges
Lecture Notes in Civil Engineering
Shrikhande, Manish (Herausgeber:in) / Agarwal, Pankaj (Herausgeber:in) / Kumar, P. C. Ashwin (Herausgeber:in) / Singh, Vivek (Autor:in) / Shekhar, Shivang (Autor:in) / Kotoky, Needhi (Autor:in) / Gaurav, Govind (Autor:in)
Symposium in Earthquake Engineering ; 2022 ; Roorkee, India
Proceedings of 17th Symposium on Earthquake Engineering (Vol. 2) ; Kapitel: 25 ; 325-337
20.07.2023
13 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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