Studies on Large Span Cantilever Structures by using Staad PRO. Analysis

The main aim of this investigation is to study which section of the large span cantilever structures are more safe and economical among the three sections of pipe, angle and tube. This study focused on the deflections of cantilever spans under different loading conditions such as dead load, live load and wind load and their design details for different spans starting from 8 m span to 20 m span by increasing in the order of 4 m span. During the study the steel take off also varies with the variation in different materials and variation in different spans and observed that the deflections also vary with the variation of spans and elements with two side cantilever structures. On the study the inference is that by comparing the output of STAAD.Pro (structural analysis and design) analysis results of different sections and it is concluded that the steel take off for pipe section is 3% less than tube section in weight and 14% less than angle section in weight. This gives savings 9% in total weight of steel required for frame and concluded that pipe section is more economical when compared to other two sections.