Contribuições a análise de ponte empregando o método dos elementos finitos.

Abstract

According to the norm NBR 7188:2013 bridge is the structure subject to move chargings, with variable positioning, its used to transpose natural obstacles with the water course. This curse conclusion work shows a review of a bridge structure, doing a brief theoretic referential describing definition, types and uploads. Currently its being more common the use of softwares to calculate the bridges. This work do a comparison between two methods being one two-dimensional and another three-dimensional, being they the method of Guyon-Massonnet and the method of infinite elements. The study had the objective of compare the moment envelopes and shows the positive and negative points from the studied methods, being that the results, principally in central section of the strigers the moments generate a huge discrepancy, where the method of Guyon-Massonnet do a simplification and with that creates significant bigger value comparing with the method of infinite elements. Concludes that the propose objetives in the conception of this work were reaches being that all the obtained results were significant because knows that the method of infinite elements have more precision, because analyze the structure according to the three-dimensional modeling, making the striges, transverse and board work together and still considering the material parameters.