Roof Load Analysis Of Steel Structure

Chapter 2 resistance of cross sections.

Roof load analysis of steel structure. When building a structure it is important to calculate wind load to ensure that the structure can withstand high winds especially if the building is located in an area known for inclement weather. Snow loads constitute to the vertical loads in the building. Load combinations provide the basic set of building load conditions that should be considered by the designer. We will consider only distributed loads.

The main purpose of the analysis was to identify parts of the building which experienced high stresses. Such loads consist of the weights of the structural system itself and of all other material and equipment perma nently attached to the structural system. 1 5 design basis for structural steelwork 1 6 steel structures eurocode 3 1 6 1 structural analysis 1 6 2 sway stiffness 1 7 steel design strength 1 8 structural integrity. Ce 331 fall 2010 example.

The minimum snow load on a roof area or any other area above ground which is subjected to snow accumulation is obtained by the expression. Staad pro tutorials analysis design of steel truss type 1 day 32 if you have any problem on staad pro or need any help comment on the video or contact. The three major loads acting on the structure included. Snow load wind load and the structure s own weight.

Structural loads ppy the structure. B for pipe steel. Point loads occur when a weight is imposed on one spot in a structure like a column. Until recently analysis of complex structures proved to be difficult and consumed too much time.

The attachment of non structural elements is the. In order for a structure to be sound and secure the foundation roof and walls must be strong and wind resistant. But these types of loads are considered only in the snow fall places. Astm a36 fy 36 ksi for structural steel astm a615 gr 40 for 3 4 gr 60 for 5 and larger rebar steel astm a53 gr.

2 1 local buckling 2 2 classification 2 2 1 classes of cross sections 2 2 2 classification process. The load is not shared equally by the supporting structure. Roof truss analysis 1 6 in this example a parallel chord steel roof truss is analyzed for typical dead and roof live loads. The load combinations in table 3 1 are recommended for use with design specifications based on allowable stress design asd and load and resistance factor design lrfd.

Analysis of point loading is best left to engineers. Live and dead loads listed in the building code for roofs and floors are approximations of distributed loads. Typical design dead. The is 875 part 4 1987 deals with snow loads on roofs of the building.

The photo below shows a truss girder painted gray supporting the roof of a gymnasium.