Long Span Steel Roof Truss

Just as there are many types of roofs with many roof parts there are many different types of roof trusses this extensive article explains through a series of custom truss diagrams the different truss configurations you can use for various roofs.

Long span steel roof truss. Contact your localalpine trussmanufacturerorofficeformoreinformation. In the engineering and construction industry any truss spanning more than 60 feet is considered to be long span thus requiring engineering consideration per international building code ibc 2015 section 2303 4 trusses for design of. Long span roofs can create flexible column free internal spaces and can reduce substructure costs and construction times. Made in the usa.

A wp series truss includes steel girders to be set on customers wood legs includes mounts for connection. To achieve maximum indicated spans trusses may require six or more panels. Bt b tc 6 6 common truss configurations for the most widely designed roof shapes. Pre welded clips on 2 centers for wood or steel secondary framing.

The span in short is the length of the bottom of the truss. The same thing is true for the bridge of the truss. Mono used where the roof is required to. This comes in handy especially when there is need to have a large uninterrupted floor area.

Some spans have a lower rate per foot than others. Finally the truss calculator will compute the best dimensional method to connect the pieces of the truss with steel joints and a bridge. When spaced 10ft they will withstand 110mph winds and 32 lbs ft snow load. The purpose of this article is first to explore and explain various aspects of building with long span open web trusses including manufacturing architectural design options engineering considerations and installation practices and second.

These steel joints are needed to support the overall truss. The more complex the truss framework is the greater quantity of these joints will be required. Standard truss centers will be 10 or 12 with wider centers as an option. They are commonly found in a wide range of building types such as factories warehouses agricultural buildings hangars large shops public halls gymnasiums and arenas.

Large span construction of roof systems is usually found in public or commercial buildings. This is the distance of the bottom chord of the truss from outside overhang of bearing wall to outside of the other bearing wall. However the efficiency of trusses in dealing with long span structures has been widely recognised in the structural engineering community but there is no doubt that the longer the span the more complex the design. Long span roofs are generally defined as those that exceed 12 m in span.

Dec 15 2013 free truss plans. 24 28 30 32 34 36 38 40 42 44 48 50 60 truss. Trusses from 8 to 80 clear spans. While this article focuses on configurations we also have a very cool set of illustrations showcasing the different parts anatomy of roof trusses.

Clear span widths from 10 through 100 available eave heights of 8 through 20.