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Comparison of Design of Steel Roof Truss using IS 875 and SP 38

Author Affiliations

  • 1Department of Civil Engineering, Maulana Azad National Institute of Technology, Bhopal, INDIA
  • 2 Design Engineer,Design Cell M. P. Housing Board, Head Office Bhopal, Bhopal, INDIA

Res. J. Engineering Sci., Volume 2, Issue (5), Pages 47-49, May,26 (2013)


In this paper, the steel roof truss having 12 m span has been analyzed with design of tubular sections of truss members. The analysis presents comparison for weight of tubular member sections, with the help of which, comparative study has been done between design of truss as per revised provisions of wind load calculations given in IS 875 (Part 3):1987 and designs obtained as per calculations made in SP 38(S&T):1987; Handbook for typified designs for structures with steel roof trusses. Indian Standard Code IS: 875(Part 3)-1987 includes consideration for different conditions of class of structure, topography factor, enlarged provisions of permeability conditions, Terrain, height & structure size factor and various wind zones. These provisions of wind load calculations are different from the considerations used in SP 38(S&T):1987.Because of which, there are considerable variations in design of truss. Hence comparative analysis of design of steel roof truss is needed.


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