Steel Roof Diaphragm Design Example

A concrete floor is relatively rigid compared to steel moment frames whereas a metal deck roof is relatively flexible compared to concrete or.

Steel roof diaphragm design example.

Themaximum end reaction r of the roof diaphragm therefore is ww wl x l 2. And a width b 300 ft. The sdi diaphragm design manual third edition is an excellent design reference every engineer should utilize if designing with steel deck diaphragms. The roof deck is supported by joists that are thick and spaced at 5 ft.

For the roof in this example the total uniform load on the diaphragm equals the combined effects of the windward and leeward cladding reactions ww wl. The manual includes pertinent design information considerations fastener information deck shear capacity tables and a plethora of highly relevant design examples stepping you through all the. Main features roof diaphragm design example. The actual behavior may more closely resemble a continuous beam with intermediate supports.

The roof deck is a wr wide rib type panel with a panel width of 36. The sdi diaphragm design manual third edition is an excellent design reference every engineer should utilize if designing with steel deck diaphragms. R divided by length b equals the collector. Astm a36 fy 36 ksi for structural steel astm a615 gr 40 for 3 4 gr 60 for 5 and larger rebar.

The roof diaphragm design example can go up against different style that when nitty gritty right can ooze a cutting edge feel. A roof design gives the chance to extra floor space in the roof volume similar to a space or upper room space. Now let s work on an example. The manual includes pertinent design information considerations fastener information deck shear capacity tables and a plethora of highly relevant design examples stepping you through all the.

Timber beam design seismic forces wind forces floor shearwall diagram lateral loads roof diaphragm design shearwall design continuous footing design. Design rigidity means relative rigidity. See the attached examples and video to really help better understand general diaphragm design better. Design criteria and specifications a.

Design a roof deck for a length of l 500 ft. Design the diaphragm for wind loading using allowable stress design method. 2003 international building code.