Industrial Steel Roof Truss Design

When it comes to roof trusses you need to consider everything from design to cost to the pros of using trusses instead of stick framing a roof.

Industrial steel roof truss design.

It is desired to specify the appropriate angle sections that will safely carry the anticipated loading using eurocode design code specified steel grade s 275. 12 50 a foot up to 20 14 95 a foot over 20 we stock 24 30 and 40 gable trusses and 12 lean to trusses. This type of truss is commonly used to construct roofs in houses. Below given are the important component parts of industrial roof truss.

Trusses are also used in long span bridges to carry gravity loads and lateral loads. The fink truss offers economy in terms of steel weight for short span high pitched roofs as the members are subdivided into shorter elements. The skeletal structure of a roof system 18 0m long and 7 2m wide is as shown in figure below. 12 50 a foot 12 40 14 95 a foot 42 60 all lean to shed trusses 1 12 pitch.

Roofing 2 psf purlins 1 5 psf sagrods bracings 1 psf basic wind speed v 120 mph. The truss is made up of howe truss configuration spaced at 3m intervals. Top aspects of truss design for roofs. The plan for the proposed industrial warehouse is given in fig iii.

For this span length the trapezoidal trusses would be normally efficient and economical. 6 2 components parts of roof truss. If you re looking for a complete guide for roof trusses then you ve come to the right place. An economy of an industrial building depends on the configuration of structure type of roof truss and portal frame utilized forces acting on building and selection of steel sections needed as per force employed.

Truss spacing may be in the range of 1 4th to 1 5thof the span length. All come with 16 overhang past post. All american made engineered agricultural gable trusses 4 12 pitch heavy duty 2 angled steel painted black. Options to set the roof girders on wood post or concrete wall also available.

Design of an industrial truss 24 6 20 120 elevation of the truss 2 30 60 column building plan total span of the truss 6 20 120 total height of the truss 24 spacing 30 pitch angle tan 1 24 60 21 80 dead loads. Approximate span to depth ratio is about l 8 to l 12. There are many ways of arranging and subdividing the chords and internal members. Usually trusses are adopted in roofs of single storey industrial buildings long span floors to resist gravity loads.

Pre welded clips on 2 centers for wood or steel secondary framing. Roof truss are designed for dead load live load wind load and their combinations as per indian standards.