Vigas de seção retangular submetidas à flexão pura: elu e els - planilhas para o autoaprendizado

Abstract

The present work continues a series of studies involving the application of spreadsheets for the design (Ultimate Limit State) and verification (Serviceability Limit State) of reinforced concrete sections subjected to pure bending. Spreadsheets initially developed as teaching aids in classroom settings and refined through undergraduate thesis projects—supervised by the advisor of this study—were consolidated into tabs and improved to support self-learning. This study focuses on a simply supported rectangular beam subjected to uniformly distributed loading, including self-weight, wall loads, as well as permanent and variable live loads from a slab. The spreadsheet is sequentially organized into data input, calculation of longitudinal reinforcement for both singly and doubly reinforced situations, detailing of top and bottom reinforcement based on the distribution of longitudinal bars in the cross-section, selection of detailing options, deflection verification, and crack width checks. The spreadsheet includes tutorials to facilitate user interaction. A didactic material was produced, and the spreadsheet application enhances the understanding of the subject, resulting in an efficient computational tool that supports both classroom teaching and self-learning.