2 grade of douglas fir are indicated below.
Girder slab floor span.
Girders are found in floor systems spanning across piers and support the weight of floor joists.
The widest span in the floor joist span table in part 2 of this tutorial module showed that floor joists can span 17 2 if they are 2 x 12s spaced 12 o c.
1 ft 0 3048 m.
Let s expand our house beyond that 17 2 span capability to 24 feet wide.
Headers are found in walls.
They are often positioned beneath load bearing walls.
But even with such good structural efficiency structural steel would not even have been considered were it not for the low floor to floor heights achievable with the girder slab system.
Although single plies are permitted they are not recommended.
Dead load weight of structure and fixed loads 10 lbs ft 2.
Live load is weight of furniture wind snow and more.
Averaging 1 5 psf for basic floor framing on this project is extremely low as is 7 4 psf overall.
1 psf lb f ft 2 47 88 n m 2.
Maximum floor joist span for no.
The girder slab system lighter building weight can save foundation column and lateral bracing costs and our rapid assembly process can meet special schedule demands for occupancy.
The girder slab composite steel and precast system breaks new ground for multi story residential building superstructures.
The girder slab system is widely used in the northeast new england and the mid west for high rise 8 stories and above or large square footage low rise buildings.
So the house dimensions will now be 24 x 13.