09 Tributary Load

Chase Stanley 0890792

Below is a screen shot of a spread sheet I created
for calculating live loads according to my building's
program and the loads per sq. ft. found in Table 3.1
in Building Construction.

LIVE LOADS:





DEAD LOADS:

LOOKING at CIRCULAR THEATRE SPACE ONLY

Wide-flange
Sizing calculation: (30' x12)/16=22.5= W24x94
Weight per (circular bay) bay:
(94 lbs./ln.ft.)(113 ln.ft.)= 10.62 k/bay

K-series joist
Spacing 3’ on center
sizing calculation: (30’x12)/20=18= 18k6
Weight per typical bay:
(8.5 lbs./ln.ft.)(300 ln.ft.)= 2.55 k/bay

Deck Slab (for floor plates) size: 4” thick (includes seating floor space)
Weight per typical bay:
(2,122 sq. ft.)(4/12)(0.150)= 106 k/bay

Deck Slab (for roof) size: 4” thick
Weight per typical bay:
(2,122 sq. ft.)(4/12)(0.150)= 106 k/bay

Circular (cast in place) concrete beams
(166' (circumference))(2beams)(5'6" high)(1' thick)(150 lbs. per cu.ft.)=273.9 k

Concrete walls (combined weights)
(18'6" high)(6' long)(1' thick)(4 walls)(150)=66.6 k
(25' high)(6' long)(1' thick)(4 walls)(150)=90k

Total Dead Loads per typical bay:
655.67 k/circular theatre total
(655.67k)/(2,122 sq.ft.)=308 lbs per sq. ft.