Minimum Live Load on Canopy per ASCE 7-02
Minimum Live Load on Canopy per ASCE 7-02
(OP)
It was recently pointed out to me that ASCE 7-02 requires a minimum live load on a canopy of 75 psf. To be precise, in Table 4-1 under "Occupancy or Use" it says "Marquees and canopies" and then list 75 psf as the minimum uniformly distributed load.
First of all, what is their definition of a canopy? I'm imagining a "roof" that juts out over exterior door(s), usually cantilevered, with or without rods or cables tieing the outer edge back to the building.
Second, does anyone know what there reasoning is for this? It seems to me that, if my definition is correct, a canopy is just a type of roof and the highest the minimum roof live load can be is 20 psf. So why change the rules for this special kind of roof?
First of all, what is their definition of a canopy? I'm imagining a "roof" that juts out over exterior door(s), usually cantilevered, with or without rods or cables tieing the outer edge back to the building.
Second, does anyone know what there reasoning is for this? It seems to me that, if my definition is correct, a canopy is just a type of roof and the highest the minimum roof live load can be is 20 psf. So why change the rules for this special kind of roof?






RE: Minimum Live Load on Canopy per ASCE 7-02
It seems then that the original canopy inclusion under 75psf was an error and that the 75psf marquees load applies perhaps to built up staging areas under tents.
RE: Minimum Live Load on Canopy per ASCE 7-02
RE: Minimum Live Load on Canopy per ASCE 7-02