11) 1 2 at 16 ft 192 A3 1_1_-1-1-1-1-1-1-G 4 at 25 ft 100ft c Glazed wall panel
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11) 1 2 at 16 ft 192 A3 1_1_-1-1-1-1-1-1-G 4 at 25 ft 100ft c Glazed wall panel / |--t-16 ft typ. A 4-story parking deck has a framing plan as shown with a story height of 14 ft. The floor consists of a 6-in thick normal weight reinforced concrete slab with 18 gage metal deck. The roof will NOT serve as a parking deck and consists of 4-in. thick normal weight reinforced concrete with 18 gage metal deck. The building has architectural glazed wall panels on all sides. The roof live load is 20 psf. a. What is the tributary area for columns: (2 Pts each) Al A3 B2 Cl b. What is the code-prescribed floor live load in psf for the building? (2 Pts) c. What is the unfactored floor dead load in psf (ignore wt. of beams)? (2 Pts d. What is the unfactored roof dead load in psf (ignore wt. of beams)? (2 Pts) e. For the loads given complete the FBD (next page) of column B2 showing all 4 stories and calculate the total maximum factored column load in lbs. or kips using the LRDF Method. (8 Pts)Explanation / Answer
a)
A1= length*height=16*25=400ft^2
A3=length*height =16*25=400ft^2
B2=length*height=16*25=400ft^2
C1=length*height=16*25=400ft^2
c)unfactored floor dead load in psf=6in
dead load is nothing but self weight.
d)unfactored roof dead load =4in
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