Open AccessFree Vibration Analysis of Horizontally Curved Composite Concrete-Steel I-Girder Bridges
Author(s) -
Manish Mishra
Publication year - 2021
Publication title -
international journal for research in applied science and engineering technology
Language(s) - English
Resource type - Journals
ISSN - 2321-9653
DOI - 10.22214/ijraset.2021.37275
Subject(s) - structural engineering , deck , vibration , girder , beam (structure) , natural frequency , modal analysis , bridge (graph theory) , materials science , bridge deck , composite number , beam bridge , normal mode , engineering , finite element method , composite material , acoustics , physics , medicine
The presence of a crack in civil structures has a significant effect on their vibrational characteristics. The objective of the current research is to investigate the effect of crack on vibrational characteristics of bridges using FE simulation. The CAD modeling and modal analysis are conducted using ANSYS software. The natural frequencies are computed and mode shape is generated for each frequency. Then I shaped a girder with the crack that has lower natural frequencies as compared to bridge design without crack. The deformation obtained for bridge deck with cracked I-shaped girder beam is higher than bridge deck design without cracks.