Response of Aswan cable-stayed bridge to spatial non-synchronous seismic excitations
Abstract Cable-stayed bridges are important infrastructure facilities serving the world today. Therefore, their safety against earthquake ground motions is crucial. However, due to their long spans, the affecting seismic excitations might be spatially non-synchronous. This paper presents a study of...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2022-08-01
|
| Series: | Journal of Engineering and Applied Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s44147-022-00124-1 |
| _version_ | 1798038972065120256 |
|---|---|
| author | Maryam A. Seleemah Mohamed S. Helam Mohamed A. Abu-alenein Eslam B. Hammad Mohamed S. Goda Ayman A. Seleemah Amr Z. Elkady |
| author_facet | Maryam A. Seleemah Mohamed S. Helam Mohamed A. Abu-alenein Eslam B. Hammad Mohamed S. Goda Ayman A. Seleemah Amr Z. Elkady |
| author_sort | Maryam A. Seleemah |
| collection | DOAJ |
| description | Abstract Cable-stayed bridges are important infrastructure facilities serving the world today. Therefore, their safety against earthquake ground motions is crucial. However, due to their long spans, the affecting seismic excitations might be spatially non-synchronous. This paper presents a study of the effect of non-synchronous seismic excitations on Aswan cable-stayed bridge located at southern Egypt. Nonlinear time history analysis was conducted on a three-dimensional finite element model of the bridge. The spatial variability was represented in terms of the wave passage effect which was simulated via different delay times between the arrivals of the ground motion to bridge supports. Results indicated that spatial variability of earthquake ground motion has, in general, a favorable effect on most bridge response parameters. This is attributed to the flexibility of the overall bridge provided by the flexibility of the bridge structural system and/or by existence of seismic isolation. |
| first_indexed | 2024-04-11T21:47:30Z |
| format | Article |
| id | doaj.art-287bc7c909964f2aaf3a19f7d462f8af |
| institution | Directory Open Access Journal |
| issn | 1110-1903 2536-9512 |
| language | English |
| last_indexed | 2024-04-11T21:47:30Z |
| publishDate | 2022-08-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of Engineering and Applied Science |
| spelling | doaj.art-287bc7c909964f2aaf3a19f7d462f8af2022-12-22T04:01:22ZengSpringerOpenJournal of Engineering and Applied Science1110-19032536-95122022-08-0169112110.1186/s44147-022-00124-1Response of Aswan cable-stayed bridge to spatial non-synchronous seismic excitationsMaryam A. Seleemah0Mohamed S. Helam1Mohamed A. Abu-alenein2Eslam B. Hammad3Mohamed S. Goda4Ayman A. Seleemah5Amr Z. Elkady6Department of Structural Engineering, Faculty of Engineering, Tanta UniversityAssistant ResearcherAssistant ResearcherAssistant ResearcherAssistant ResearcherDepartment of Structural Engineering, Faculty of Engineering, Tanta UniversityDepartment of Structural Engineering, Faculty of Engineering, Tanta UniversityAbstract Cable-stayed bridges are important infrastructure facilities serving the world today. Therefore, their safety against earthquake ground motions is crucial. However, due to their long spans, the affecting seismic excitations might be spatially non-synchronous. This paper presents a study of the effect of non-synchronous seismic excitations on Aswan cable-stayed bridge located at southern Egypt. Nonlinear time history analysis was conducted on a three-dimensional finite element model of the bridge. The spatial variability was represented in terms of the wave passage effect which was simulated via different delay times between the arrivals of the ground motion to bridge supports. Results indicated that spatial variability of earthquake ground motion has, in general, a favorable effect on most bridge response parameters. This is attributed to the flexibility of the overall bridge provided by the flexibility of the bridge structural system and/or by existence of seismic isolation.https://doi.org/10.1186/s44147-022-00124-1Aswan bridgeMulti-support excitationSeismic behaviorWave passage effectCable-stayed bridge |
| spellingShingle | Maryam A. Seleemah Mohamed S. Helam Mohamed A. Abu-alenein Eslam B. Hammad Mohamed S. Goda Ayman A. Seleemah Amr Z. Elkady Response of Aswan cable-stayed bridge to spatial non-synchronous seismic excitations Journal of Engineering and Applied Science Aswan bridge Multi-support excitation Seismic behavior Wave passage effect Cable-stayed bridge |
| title | Response of Aswan cable-stayed bridge to spatial non-synchronous seismic excitations |
| title_full | Response of Aswan cable-stayed bridge to spatial non-synchronous seismic excitations |
| title_fullStr | Response of Aswan cable-stayed bridge to spatial non-synchronous seismic excitations |
| title_full_unstemmed | Response of Aswan cable-stayed bridge to spatial non-synchronous seismic excitations |
| title_short | Response of Aswan cable-stayed bridge to spatial non-synchronous seismic excitations |
| title_sort | response of aswan cable stayed bridge to spatial non synchronous seismic excitations |
| topic | Aswan bridge Multi-support excitation Seismic behavior Wave passage effect Cable-stayed bridge |
| url | https://doi.org/10.1186/s44147-022-00124-1 |
| work_keys_str_mv | AT maryamaseleemah responseofaswancablestayedbridgetospatialnonsynchronousseismicexcitations AT mohamedshelam responseofaswancablestayedbridgetospatialnonsynchronousseismicexcitations AT mohamedaabualenein responseofaswancablestayedbridgetospatialnonsynchronousseismicexcitations AT eslambhammad responseofaswancablestayedbridgetospatialnonsynchronousseismicexcitations AT mohamedsgoda responseofaswancablestayedbridgetospatialnonsynchronousseismicexcitations AT aymanaseleemah responseofaswancablestayedbridgetospatialnonsynchronousseismicexcitations AT amrzelkady responseofaswancablestayedbridgetospatialnonsynchronousseismicexcitations |