Efectos críticos para diseño por última resistencia de un puente colgante sujeto a cargas por viento y acciones sísmicas

Abstract

This document contains the structural analysis of an existing suspension bridge, lateral seismic and wind loads have been applied to said structure, the object is to define which load is the one that has the greatest impact on the bridge. The method of stiffness has been used and also a structural analysis program, this software allows us to observe the behavior of the structure according to the type of load that is applied, which is beneficial since it facilitates the analysis. As for gravitational loads, we will have dead load and a small value of live load, since the bridge is neither pedestrian nor vehicular, said structure supports a PVC pipe that transports pressurized drinking water. The ECUADORIAN CONSTRUCTION STANDARD has been taken as a reference to calculate the lateral loads: seismic and wind, for this the structure has been located in the province of Esmaraldas in the Quininde canton with a type of soil D, according to the map of seismic zoning Esmeraldas is categorized in very high seismic hazard, with these data we proceed to obtain the necessary coefficients to obtain the design spectrum. In the same way, according to the characteristics of the bridge and its surroundings, the coefficients to calculate the wind force applied to the columns and beams are found in the standard. Thus, the results have been reached where the different magnitudes of shear forces that act at the base of each tower can be observed.