I am tasked with designing some insulated foam metal panel (sandwich panel) and cold formed girts for a 3 story building. I am somewhat familiar with how to design these items as I have a large background in the design of industrial buildings.
The client has sent me the allowable span table that he wants to use such that he is using side joint fasteners only to attach the panels to the girts. Usually this table does not govern the design but today it is so I would like to make sure I get things correct.
The span table indicates an allowable span of 5’-10” for a wind pressure of 35 psf and 5’-2” for a wind pressure of 40 psf. My question is in relation to what area I need to be using to check this table. My wind pressures are:
10 square feet = -38 psf
20 square feet = -35 psf
50 square feet = -32 psf
The panel is 12 feet tall by 3.5feet wide. Should I be using the total area for the panel (42 square feet) or the area for each fastener (approx. 21 square feet)? I’m inclined to use the total area of the panel but I am not 100% confident in this.
Code is ASCE 7-05.
The client has sent me the allowable span table that he wants to use such that he is using side joint fasteners only to attach the panels to the girts. Usually this table does not govern the design but today it is so I would like to make sure I get things correct.
The span table indicates an allowable span of 5’-10” for a wind pressure of 35 psf and 5’-2” for a wind pressure of 40 psf. My question is in relation to what area I need to be using to check this table. My wind pressures are:
10 square feet = -38 psf
20 square feet = -35 psf
50 square feet = -32 psf
The panel is 12 feet tall by 3.5feet wide. Should I be using the total area for the panel (42 square feet) or the area for each fastener (approx. 21 square feet)? I’m inclined to use the total area of the panel but I am not 100% confident in this.
Code is ASCE 7-05.
