Research Paper on Analysis and Design of Steel Truss by using Angle and Tube Section

Abstract

Now a days many structures such as railway station roof, aircraft hangers, airport terminals, parking garage, industrial building roof, large factory roof, multi-story roof truss, parking garages roof truss are for the best truss section which will suited for that selected steel roof truss structures because of the large spacing required heavy concreting and large quantity of steel for beam, column and slab casting so that is why, it is uneconomical and deflection in member is more. That’s why most probable solution for this condition tubular steel truss is unique solution within the economical point of view and various parameter are high in strength to weight ratio, low maintenance cost, long life span, no angularity, easy to manufacture and install. In today’s construction industry most of the steel building are constructed with critical sections of steel which is analysis and designed also built by regular practices approaches, therefore result of such structures are under in heavy loads or highly expensive structures. So tubular trusses are the most effective and best possible replacement for regular steel angle section. As we compare various section it is best construction industry as one of the types of steel section is most light weigh, with less economy, and other technical parameters. For low-cost economy point of view which is the main objective of the research work includes comparison of regular steel angle section structures with tube section structure for selected steel roof truss conditions. After reading literature review it is found that 15-20% cost is saved by using tube section. Analysis and design of steel roof truss elements was carried out by STADD PRO V8i computer software, by manually applying Indian Standards codes of practices. The advantage of tube section buildings is under the economy of roof truss design. There are totally different ten types of the steel roof truss section available in market. As we comparing two of them which are angle and tubular section. Other are I- section, T-section, Channel Section, Round bars, square bars, Corrugated Sheet, expanded metals, Flat sheets. This research study is carried out to provides in comparing that which method is low in economy, more load capacity of load transport of roof to purlins and purlins to members then member to column and further column to RCC block then RCC block to soil subgrade. Comparing both the section on the economical parameters by STAAD PRO V8i Software by calculating steel take off and price comparison of both the section. Also comparing parameters like node displacement, node reaction, beam reaction, min. & max axial forces and beam stresses. Structural analysis and design of both section by STADD PRO V8i computer software. After reviewing literature review papers final research paper is based on optimum and accurate steel roof truss design. Manually calculate dead load, dead load and wind load by using Indian Standard Code of Practice IS 800:2007 and IS 875(Part 3)-1987. The STAAD PRO OUTPUT method is used for determining the quantity of steel (weight) & other parameter like max. vertical displacement, max. & min. vertical force, moment at X-axis, moment at Z- axis. After analyzing fully deciding and comparing least value of quantity of steel take off in software considered as most economical truss. Key Words: Structural Analysis, Conventional/Traditional Steel Truss, Angle Section, Tube Section, AutoCAD, STAAD PRO V8i, Steel Roof Truss, IS 800: 2007, IS 806: 1968, IS 875 : 1987 for Tube Section, etc.