MODELACIÓN COMPUTACIONAL DE LA PROBABILIDAD DE FALLA DEL UN ANCLAJE SUPERIOR EN UN PUENTE

Abstract

In the present work several experiments for the upper anchorage of “Río Papaloapan” cablestayed bridge in order to determine the types, sizes, quantities and locations of the internal defects of the anchorages, generated during the fabrication process or due to the usage time, were performed. The parameters and the type of probability distribution function of the anchorage defects were obtained as the results of the experimental tests. Models of anchorages with and without internal defects were constructed according to the obtained parameters. These models were tested using commercial software taking into account the external forces, which affect the bridge, such as the wind and the traffic. As the result of the above mentioned simulations the behavior of the upper anchorage was obtained. The obtained numerical results provided the probability of failure of the anchorage, which allowed to determine the safety level of the cable-stayed bridge.