Steel Truss Roof Section

This type of truss is commonly used to construct roofs in houses.

Steel truss roof section.

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. Angle sections are widely used for roof truss constructions and for filler joist floors. The truss is made up of howe truss configuration spaced at 3m intervals. How is advant different.

As a guide the spacing of the roof trusses can be kept. 12 50 a foot 12 40 14 95 a foot 42 60 all lean to shed trusses 1 12 pitch. Of span upto 15 0m. Equal angle sections are available from 20 mm x 20 mm x 3 mm to 200 mm x 200mm x 25 mm with their corresponding weights as 9 n and 736 n per meter length respectively.

Advant is designed specifically to fill the need for a lightweight strong and economical cold formed steel truss option in floors and flat roof applications. The advant truss section has many advantages over existing proprietary cold formed steel truss shapes. The portion of the roof contained between successive trusses is called a bay. See more ideas about steel trusses roof truss design roof trusses.

Hence the length of the purlin is equal to the width of the bay i e the spacing of the trusses. For economic spacing of roof trusses the cost of truss should be equal to twice the cost of purlins the cost of roof covering. The members of trusses are made of either rolled steel sections or built up sections depending upon the span length intensity of loading etc. A slope of 22ø degree is common for corrugated steel and asbestos roofing sheets.

A sl series truss is a single slope truss that includes steel girders and steel columns with clear span widths from 10 through 80 with available eave heights of 8 through 20. The member spanning from truss to truss which is meant to carry the load of the roofing material and to transfer it on the panel points is called a purlin. There are many ways of arranging and subdividing the chords and internal members. Dec 7 2017 explore ls fai s board steel trusses on pinterest.

Pre welded clips on 2 centers for wood or steel secondary framing. Options to set the roof girders on wood post or concrete wall also available. Just a few include. All american made engineered agricultural gable trusses 4 12 pitch heavy duty 2 angled steel painted black.

The idealised 2d model of the roof truss typical loading configuration is as shown below. All come with 16 overhang past post. Top aspects of truss design for roofs. Rolled steel angles tee sections hollow circular and rectangular structural tubes are used in the case of roof trusses in industrial buildings fig.