Evaluación de las vigas T de la superestructura del puente de 15 m de longitud sobre la quebrada Palenque.

Abstract

The purpose of this work is to evaluate the T-beams of the 15 m long bridge on the Palenque parish, on the Palenque road in the canton Pasaje, in the province of El Oro; performing a detailed structural calculation of the beams both the inside and outside of the bridge. For the structural design of the T-beams, AASHTO the rule has been followed, which is recognized in the country as the ideal regulation for this type of structure. Two types of loads were taken into consideration: the permanent loads which include the weight of the entire structure, finishes and the weight of asphalt, while live loads correspond to the vehicle overload of HL-93 design, which is a combination between design truck or tandem and design lane loading. Once the loads are obtained, the shear and moment efforts can be established, in the case of vehicle loads they will be increased including the dynamic expansion factor, then the amount of steel necessary for the moment, shear and temperature solicitations can be established. The AASHTO normative establishes the combinations of resistance to be analyse, as well as the majoring factors that are considered for each of these loads. That is why the resistance I combinations are used, with the same that the design values for moment and shear stresses in the beams will be obtained.