Damage investigation through dynamic characteristics of existing bridge deck panels
|
|
|||||||||||
Bibliographic Details
| Author(s): |
Sania Gohar
(Saitama University, Saitama, Japan)
Yasunao Matsumoto (Saitama University, Saitama, Japan) Satoru Sakuma (East Nippon Expressway Co. Ltd., Saitama, Japan) |
||||
|---|---|---|---|---|---|
| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Symposium: Challenges for Existing and Oncoming Structures, Prague, Czech Republic, 25-27 May 2022 | ||||
| Published in: | IABSE Symposium Prague 2022 | ||||
|
|||||
| Page(s): | 1935-1941 | ||||
| Total no. of pages: | 7 | ||||
| DOI: | 10.2749/prague.2022.1935 | ||||
| Abstract: |
Reinforced concrete (RC) deck slabs are often observed to be deteriorated due to reinforcement corrosion leading to horizontal cracks within the slabs which are difficult to judge by visual inspection. This study focuses on investigating damage and deterioration of RC deck panels of an existing steel girder bridge using modal parameters identified through vibration measurements and finite element (FE) analysis. In the analytical models, to incorporate the actual bridge deterioration at different locations, the results of visual inspection and compressive strength test of deck panels were used. Deck panel in a relatively healthy state was chosen as reference. For damaged panels, two models were considered in the FE analysis; first with reduced Young’s modulus and second with horizontal cracks at different locations. The comparison of experimental and analytical results led to consider the possibility of existence of horizontal cracks within the damaged deck panels. |
||||
| Keywords: |
finite element analysis FEA natural frequency vibration measurements damage detection mode shape Reinforced concrete (RC) deck slabs horizontal cracks stabilization diagrams
|
||||
| Copyright: | © 2022 International Association for Bridge and Structural Engineering (IABSE) | ||||
| License: | This creative work is copyrighted material and may not be used without explicit approval by the author and/or copyright owner. |
||||