Roof Diaphragm Design Example

Table 3 16a1 roof diaphragm limits for wind.

Roof diaphragm design example.

First off the roof diaphragm design example is an extremely basic direct and utilitarian design every single current trademark. The actual behavior may more closely resemble a continuous beam with intermediate supports. Roof seismic force at roof level v n s for single storey building. Roof the weight tributary to roof level.

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 intricate details and covering nearly any. The sdi diaphragm design manual third edition is an excellent design reference every engineer should utilize if designing with steel deck diaphragms. Design example 2 n flexible diaphragm design diaphragm unit shear at the east side of line 3 and at line 9 is 136 000 160 850. Shear nailing of the roof diaphragm north south the diaphragm loaded in the north south direction has been selected to illustrate the design of a wood structural panel roof diaphragm.

By providing wind and seismic design examples for in plane lateral design of wood and gypsum sheathed diaphragms including a brief. The seismic force on the diaphragm is calculated using the following formula. See the attached examples and video to really help better understand general diaphragm design better. Wood frame shear wall and diaphragm design ricky mclain ms pe se technical director woodworks texas workshops december 2016.

1 applicable to all roof slopes with and without roof irregularities exposure b. Lbs ft plf 2. D roof where f. Themaximum end reaction r of the roof diaphragm therefore is ww wl x l 2.

Section 2305 general design requirements for lateral force resisting systems 2305 1 general. Structures using wood frame shear walls or wood frame diaphragms to resist wind seismic or other lateral loads shall be designed and constructed in accordance with af pa sdpws and the applicable provisions of sections 2305 2306 and 2307. 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. D roof the weight tributary to the diaphragm at roof level roof dead load the weight.

The roof diaphragm design example can go up against different style that when nitty gritty right can ooze a cutting edge feel. Main features roof diaphragm design example.