Análisis no lineal del pandeo de columnas esbeltas para cargas estáticas

Abstract

The design of reinforced concrete structural elements has improved over the years due to better knowledge of the behavior of its comprising materials. Columns as structural elements are very important in the structure life span. This paper develops a method for testing and analyzing nonlinear slender rectangular reinforced concrete columns and concrete filled steel columns, whose aim is to calculate the geometric and mechanical guideline of a column to determine the maximum moment which can withstand an axial load due to either depletion or instability. The method comprises an iterative process in which the neutral fiber depth and the radius of curvature. Graphics solutions (Guideline geometric and mechanical) that indicate the status of the last column were obtained. The method is versatile as it can be used to analyze columns consisting of different types of materials incorporating only stress-strain diagram; also the method is optimal as to check if a certain combination of column load resists, is not necessary to construct the interaction diagram