Análisis de las propiedades dinámicas de un puente atirantado con tablero tipo losa sobre vigas con sistema de aislamiento sísmico

Abstract

The purpose of this project is to publicize the analysis of the vibrational behavior of the structure of the Napo river bridge. The bridge has an approximate length of 740 meters in which it has a cable-stayed section of 590 meters which is the subject where we will develop an analysis of the vibration modes of the structure since it has seismic dissipators to react to any movement that given, for this a modeling was carried out in a bridge analysis and design software. Where by using the plans the structure of the bridge was captured where the pylons, abutments, piers, deck and stays were placed. The bridge has 2 vehicular lanes and 2 as a bicycle path. For the calculation of the live load, the one established by the standard, which is HL-93, was used. The dead loads were calculated using the values given by the plans where the dimensions of the bridge were used. such elements as the traffic barrier, railings, etc. The analysis that is carried out is modal, using the mass values in which the total dead load and 25% of the live load were considered, for by using the software the period, frequency and factor values were determined. participation of the mass to finally make an analysis of the values with and without the use of seismic arresters to observe their importance in the structure of the bridge.