Identification of Dynamic Characteristics of Bridge Crossing Sungai Simpang Kiri Using Free Vibration Analysis

This paper presents a free vibration analysis (FVA) of a reinforced concrete bridge crossing Sungai Simpang Kiri, located at Batu Pahat. The bridge consists of three simple spans with a total length of 70meter (20 m + 30 m + 20 m). The concrete deck of the bridge is supported by concrete tensioned p...

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Bibliographic Details
Main Authors: Mat Yusoff, Siti Mas Ayu, Sooria, Sherliza Zaini, Kamarudin, Ahmad Fahmy, Boon, Koh Heng
Format: Conference Proceeding
Language:English
Subjects:
Bridge decks
Concrete
Concrete bridges
Damage detection
Dynamic characteristics
Finite element method
Free vibration
Girders
Piers
Reinforced concrete
Resonant frequencies
Stiffness
Structural damage
T beams
Three dimensional analysis
Three dimensional models
Vibration analysis
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Summary:This paper presents a free vibration analysis (FVA) of a reinforced concrete bridge crossing Sungai Simpang Kiri, located at Batu Pahat. The bridge consists of three simple spans with a total length of 70meter (20 m + 30 m + 20 m). The concrete deck of the bridge is supported by concrete tensioned pre-stressed T-beam. The girders are sitting on two abutments at both ends and two piers as internal supports. The base of the piers is considered as fixed base and the abutments were free to move. The structural dynamic characteristics of the bridge in terms of fundamental frequency and mode shapes were obtained analytically using SAP2000 three-dimensional finite element modeling software. It is very important to evaluate the dynamic characteristics of reinforced concrete bridges that can lead to the detection of stiffness reduction or damage of the structure. From the analysis, the fundamental frequency of the bridge was 1.94 Hz with fundamental mode shape is critical in transverse bending mode.
ISSN:2261-236X
2274-7214
2261-236X
DOI:10.1051/matecconf/20164702011