Open Access Open Access  Restricted Access Subscription Access

Free Vibration Analysis of a Steel Bridge with Different Damage Condition

Sajib Sarker

Abstract


Truss Bridge is one of the main connect all over the world which is comprised of pre-assembled trusses. Sometime, failure of a single member or multiple members can cause major harm to the structure. In this way, it has turned out to be basic to perform dynamic investigation to know the dynamic conduct of the structure under various fizzled part condition. The dynamic examination is normally completed in a tedious limited component programing. The point of this theory work is to lead the free vibration examination of a simple truss bridge span through staad.pro programming. Free vibration examination was directed for four distinct cases. At first free vibration investigation was led for in place condition. From free vibration examination vibrational conduct of the scaffold truss was resolved. It gives distinctive mode states of the structure and relating common frequencies. A scientific model was likewise settled which gives mode shapes and relating characteristic frequencies of the scaffold structure for various cases. At long last a relative report was found between the expository outcomes and the outcomes got from staad.pro programming. This relative investigation shows that the level of progress of normal recurrence in various cases was about equivalent in both programming examination and diagnostic model.

Full Text:

PDF

References


Sharma, M., & Maru, S.(jan,2014). Dynamic Analysis of Multistoried Regular .Building. IOSR Journal of Mechanical and Civil Engineering (IOSR-JMR), Volume 11, Issue 1 Ver. II , pp 37-42.

Wikipedia, the free encyclopedia. (2015). Modal analysis. Retrieved from http://en.wikipedia. org/wiki/ Modal_analysis.

Rahman, M.M. (2009). Analysis and Design of Steel Bridge Superstructure: A Case Study of Hardinge Bridge. B.Sc. Engineering Thesis. RUET, Rajshahi.

Johansson, C. (2013). Simplified dynamic analysis of railway bridges under high speed trains. Licentiate Thesis. KTH School of ABE, Stockholm, Sweden.

Fr├Żba, L. (1996). Dynamics of railway bridges. Thomas Telford Publishing.

Yoshida, D. M. (1971). Finite-element analysis of beams and plates with moving loads. International Association of Bridge Structural Engineering, 31(1), 179-195.

Filho, F. V. (1978). Finite element analysis of structures under moving loads. Shock and Vibration Inform. Center The Shock and Vibration Digest, V. 10, (8), 27-35.

Sridharan, N., & Mallik, A. K. (1979). Numerical analysis of vibration of beams subjected to moving loads. Journal of Sound and Vibration, 65(1), 147-150.

Bathe, K. J., & Wilson, E. L. (1976). Numerical methods in finite element analysis.

Lin, T. Y., & Burns, N. H. (1963). Design of prestressed concrete structures (No. 624.183 L55 1963). New York: Wiley.


Refbacks

  • There are currently no refbacks.