Response of Cable-Stayed Bridge Under Ground Motions
A Case Study of Sei Dareh Cable-Stayed Bridge
- DOI
- 10.2991/aer.k.211106.029How to use a DOI?
- Keywords
- Cable-stayed bridge; earthquake; accelerogram; 3D FEM; linear-elastic
- Abstract
The cable-stayed bridges are vulnerable to vibrations caused by earthquakes. This study focuses on the Sei Dareh Cable-Stayed bridge that is at a relatively high level of vulnerability based on the 2017 Indonesia earthquake map. In this research, the study discussed the response of the Sei Dareh cable-stayed bridge under eleven ground motion accelerograms. The analysis was based on linear elastic conditions, so that it obtained the natural frequency, maximum displacement in the middle of the span and the top of the pylon, the stress of the cable and edge beam, and dynamic amplification factor (DAF). The three-dimensional finite element model (3D-FEM) of the bridge was established. Then, the model was analyzed under eleven ground motion accelerograms that have been scaled using the local design response spectra. The study reveals that the first and second mode of structure is a vertical translation with 0,71s and 0,49s periods respectively. TCU060 and Tabas accelerogram ground motions caused the largest cable forces and stress contrary to the Imperial ground motions. The analysis results under eleven ground motions show that the top pylon and deck mid-span satisfy the PTI code allowable displacements. The dynamic amplification factor (DAF) is under 2,0 as the limit value.
- Copyright
- © 2021 The Authors. Published by Atlantis Press International B.V.
- Open Access
- This is an open access article under the CC BY-NC license.
Cite this article
TY - CONF AU - Afdhal Lazuardiansyah Ramdhani AU - Riawan Gunadi PY - 2021 DA - 2021/11/23 TI - Response of Cable-Stayed Bridge Under Ground Motions BT - Proceedings of the 2nd International Seminar of Science and Applied Technology (ISSAT 2021) PB - Atlantis Press SP - 185 EP - 192 SN - 2352-5401 UR - https://doi.org/10.2991/aer.k.211106.029 DO - 10.2991/aer.k.211106.029 ID - Ramdhani2021 ER -