I Beam Roof Structure

Instead a wood i joist roof system is framed with either a central bearing wall or a structural ridge a beam that carries the roof load to posts.

I beam roof structure. Let s consider a basic gable wood roof framing design. Here we have a wood framed gable roof. The load from the top half of the roof is carried by the bearing wall or structural ridge. Structures that use steel roof beam construction usually have flat roofs but some smaller structures may have a peaked roof.

Beam moment and shear force calculator. Ridge beams and boards modern raising ceiling joists jlc technical steico construction roof rafter collar tie calculations structural ridge beamtimber steel framing manual single span ridge beamglulam ridge beam span table elcho. The tables below give maximum spans for rafters and beams. Steel beams are widely used throughout the construction industry when supporting heavy loads is required commonly termed an i beam because of its shape beams provide great load bearing support when used horizontally or standing as columns.

Floor beam span tables of residential structural design we will now look at roof rafter and beam design. Steel i beams are pretty husky structural components used sparingly on a residential building site because wood is the primary structural material found in most homes. The image below shows a cross section of our simple 12 x 13 house from the joist span tables section of this tutorial. Column beam construction use steel and wood.

The i beam also called the h beam wide beam w beam universal beam ub and rolled steel joist is the shape of choice for structural steel builds. Steel beam members can span up to 18m but the most usual range of steel beam spans rang from 3m to 9m. The bottom half is carried by the exterior bearing walls. Various prefabricated beam sections are available to be used in the construction multi storey steel frame structure.

The multi span beam calculator is a great tool to quickly validate forces in beams with multiple spans and load. Steel is cheaper than wood in most cases and it can handle a load much better but steel beams must usually be cut off site and trucked into a location whereas wood beams can readily be cut on site. The figures are based on quality materials. Use it to help you design steel wood and concrete beams under various loading conditions.

Keep in mind that these are maximums in other words shortening spans slightly will result in a more solid structure. For lesser grades spans should be shorter. The design and structure of the i beam makes it uniquely capable of handling a variety of loads. Erection of steel beams.