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Analysis of Elastic Support Beam on Dynamic Load
The differences of boundary restraints directly affect the dynamic responses and bearing capacity. The mechanics models of beams with flexible supports were established, and elastic supports, lumped masses at the beams ends and non-symmetric supports were taken into account. Numerical analysis of the model was conducted by using the Euler-Bernoulli's theory and Lagrange method. The characteristic equation and the eigen-functions of the supported beam were derived. The responses of beams subjected to any dynamic loads were explored. Through the comparison with results from the existing references calculation results, the accuracy of the present method is validated. Then, the effect of the boundary restrained stiffness on the dynamic responses of beams is analyzed. The analyses show that flexible supports have great effect on the performances of beams, both horizontal and vertical elastic supports can reduce the dynamic coefficient of displacement. The optimization of added masses and their positions on the beam can improve the impact resistance of beam.
Analysis of Elastic Support Beam on Dynamic Load
The differences of boundary restraints directly affect the dynamic responses and bearing capacity. The mechanics models of beams with flexible supports were established, and elastic supports, lumped masses at the beams ends and non-symmetric supports were taken into account. Numerical analysis of the model was conducted by using the Euler-Bernoulli's theory and Lagrange method. The characteristic equation and the eigen-functions of the supported beam were derived. The responses of beams subjected to any dynamic loads were explored. Through the comparison with results from the existing references calculation results, the accuracy of the present method is validated. Then, the effect of the boundary restrained stiffness on the dynamic responses of beams is analyzed. The analyses show that flexible supports have great effect on the performances of beams, both horizontal and vertical elastic supports can reduce the dynamic coefficient of displacement. The optimization of added masses and their positions on the beam can improve the impact resistance of beam.
Analysis of Elastic Support Beam on Dynamic Load
Liu, Yang (author) / Wang, Ming-Yang (author) / Song, Chun-Ming (author)
Second International Conference on Geotechnical and Earthquake Engineering ; 2013 ; Chengdu, China
IACGE 2013 ; 422-429
2013-10-09
Conference paper
Electronic Resource
English
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