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Title: Dynamic effects in bridges. Variation of the impact coefficient

Author(s): López del Hierro Fernandez, E.; Benito Muñoz, J.J.; Gallego Velarde, J.; Alvarez Cabal, R.

Publication: ACHE

Volume: 45

Issue: 193

Appears on pages(s): 63 - 72



Date: 1/8/1994

In the present article are exposed the results obtained in the analysis from the dynamics interaction structure-vehicle in highway bridges and from railway. Formally it is articulated in three basic blocks in wthose which is described the numerical model used, the principals results obtained and a parametric study that affects to the basic variables of the problem. All the analysis is established in a two-dimensional system, elastic and basically linear, although are used laws of non linear behavior for the modeling of concrete elements. The development is determinist, although are admitted as income random records generated artificially. The final objective of the work is the evaluation of the relative importance of each one of the basic variables of the problem, thenumerocal simulation of dynamic processes with load and, through the successive analyzed histories, the estimation of classic parameters of design as can be the impact coefficient.

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