Open Access Open Access  Restricted Access Subscription or Fee Access

Dynamic Analysis of Simply Supported Bridge under Vehicle Loads

Kashmira Ajay Puranik, P.S. Bhalage, A.B. Vawhale, N.S. Vaidkar

Abstract


The analysis of dynamic behavior of bridge structures that are subjected to moving loads has been one of the enquiry interests in recent years. Specifically in railway bridges, reverberation ensues when the load frequency is equal to a multiple of natural frequency of the structure. Resonance vibrations have been practical in railway bridges especially subjected to high-speed lines. They are caused primarily because of two reasons: one is the repeated application of axle loads and second is the speed of the train itself. When a bridge is imperiled to the moving loads of a high-speed train, the dynamic response of the structure is influenced by the soil lying beneath the foundations and surrounding the bridge. The main objective of this study is to analyze the dynamic response of types of bridges and the underlying soil under traffic. This is achieved by modeling a three-dimensional model of simply supported bridge and analyzing this model for moving loads. The response of the soil medium lying beneath and nearby the source is observed by boundary element analysis method. Four types of soil conditions were examined infinitely: stiff soil, stiff soil, hard soil and soft soil. The results are shown at the culmination of this work.

Full Text:

PDF

References


A Romero, M Solis. SSI in resonant railway bridges. Engineering Structures. 2013; 47: 108-116p.

Domenech A, Martinez-Rodrigo MD, Romerio A, Galvin P. On the basic phenomenon of soil structure interaction on the free vibration response of beams: application to railway bridges. Engineering Structures. 2016; 125: 254–265p.

Ngamkhanong SK. Crossing phenomenon in overhead line equipment structure in 3D space considering soil structure system. IOP Series: Material Science Engineering. 2017; 245: 032-047p.

Matin A, Elias S, Matsagar V. Seismic response control of reinforced concrete bridges with soil structure interaction. Bridge Structure Engineering. 2017; 47: 34–41p.

Magade SB, Patankar JB. Effect of soil structure interaction on the dynamic behavior of buildings. IOSR J Mechanical Civil Eng. 2014; 09–14p.

Gupta A, Singh A. Dynamic analysis of railway bridges under high speed trains. University J Mechanical Engineering. 2014; 2(6): 199–204p.

Fryba L. A rough assessment of railway bridges for high-speed trains. Engineering Structures. 2001; 23: 548–556p.

Mahir Ulker Kaustelll, Raid Karoumi. Simplified analysis of SSI of portal frame railway bridge. Engineering Structures. 2010; 32: 3692-3698p

Pecker A. Rion-Antirion Bridge, Greece: concept, design and construction. Structure Engineering Journal. 2005; 15(1): 22–27p.

Crawford S, Murray M, Powell J. Development of a mechanistic model for the determination of track modulus. In: 7th International Heavy Haul Conference. Brisbane, Australia. 2001, pp. 1–7.

Premapote S, Bazyar MH, Song C. A direct procedure for the transient analysis of dynamic soil structure interaction. APCOM’07 in conjunction with EPMESC XI. Kyoto, Japan. December 3–6, 2007.

Martinez-Rodrigo, Lavado J, Museros P. Dynamic performance of existing high-speed railway bridges under resonant conditions retrofitted with fluid dampers. Engineering Structures 2010; 32(3): 808–828p.

Cai YX, Gould PL, Desai CS. Nonlinear analysis of 3D seismic interaction of soil pile structure systems and applications. Engineering Structures. 2000; 22: 191–199p.

Chau KT, Shen CY, Guo X. Nonlinear seismic soil pile structure interactions: shaking table tests and FEM analyses. Soil Dynamic Earthquake Engineering. 2009; 29: 300–310p.

Wang Q, Wang JT, Jin F, Chi F-D, Zhang CH. Real-time dynamic hybrid testing for soil structure interaction analysis. Soil Dynamic Earthquake Engineering. 2011; 31: 1690–1702p.




DOI: https://doi.org/10.37628/jsea.v5i1.422

Refbacks

  • There are currently no refbacks.