Desarrollo de una herramienta para el diseño de elementos estructurales de acero laminado en frío basado en la norma AISI 2007 y por el método LRFD

Abstract

This project provides one tool for the design of cold formed steel elements. It is based on C channel and structural square tubes in Costa Rica’s market. The norm AISI 2007 was used because it is the most recent one when developing the research. The Screen Design Aid and the Spreadsheet were prepared in Microsoft Excel because it is a useful tool for arising complex procedures and multiple equations appear when using cold formed structures. Tables and figures are obtained for target sections, where data regarding the moment of resistance, compression, shear and tension are shown. Also, a Spreadsheet that allows to introduce new profiles for immediate analysis is added. The situations later mentioned are resolved; however, aspects like joint designs or the analysis of other kinds of failures like web crippling are not covered. In addition, it is used for the analysis of individual members and structures of the sort. Taking as a base the review of the literature, it should be imperative to keep precautions with cold formed steel structures because they are classified as fragile, reason why people should exploit its use. Keywords: cold formed section, buckling, structural tube, C section, effective width, effective properties, LRFD.