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DYNAMIC RESPONSE OF A BERNOULLI–EULER BEAM ON TWO-PARAMETER FOUNDATION SUBJECTED TO A MOVING HARMONIC LOAD
Cao Changyong * #,Zhong Yang,Li Mingliang
Department of Civil Engineering，Dalian University of Technology
*Correspondence author
#Submitted by
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Funding: none
Opened online:27 March 2007
Accepted by: none
Citation: Cao Changyong,Zhong Yang,Li Mingliang.DYNAMIC RESPONSE OF A BERNOULLI–EULER BEAM ON TWO-PARAMETER FOUNDATION SUBJECTED TO A MOVING HARMONIC LOAD[OL]. [27 March 2007] http://en.paper.edu.cn/en_releasepaper/content/11700
 
 
The dynamic response of an infinite Bernoulli–Euler beam, placed on a two- parameter foundation and subjected to a moving harmonic load, has been investigated in the paper. The double Fourier transform technique has been employed to reduce the governing partial equation to algebraic equation and the inverse Fourier transform is utilized to get the analytical solution in integral form. The closed-form analytical solution of the problem is obtained by residue theorem and theory of complex analysis. Detailed analyses based on a practical concrete beam are performed to research the effect of various parameters on the dynamic response of the beam. Numerical results show that the maximum deflection of the beam resting on two-parameter foundation increases slightly with the increasing of load velocity and decreases with the increasing of the shear modulus of subgrade.
Keywords:Beam; Dynamic response; Two-parameter foundation; Moving harmonic loads
 
 
 

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