Consideraciones de diseño sismo-resistente para cimentaciones profundas en la ciudad de Guayaquil.

Abstract

Based on data obtained through CPT and SPT tests, relevant information will be filtered to create a stratigraphic profile and realistically characterize the soil in the south of the city. The design of the superstructure and the foundation were made by the consulting company, stressing that the piles are concentric with the columns, so that the transmission of loads is facilitated. To begin with, the moment and shear values obtained from a simple embedment in the lower part of the superstructure are extracted, this data is entered as a load case in the Lpile program, for a first iteration, obtaining an embedment length that will allow iteration until finding a convergence between the lengths in which the deflections are zero. Once the two influence heights converge, both in SAP2000 and in Lpile, it is assumed that this is the equivalent length for a complete design of a foundation in which the soil-structure interaction and the influence of assumed seismic vibrations is considered. This last assertion will be verified with the dynamic analysis of the whole structure using the Py curves method to model the soil in the SAP2000 program, in such a way that the soil structure interaction is as consistent with the reality, the results of Lpile with the last iteration and the complete SAP2000 model were compared and very similar results were obtained.