Use the figure below to solve this problem. Assume a 5 in tick reinforced concrete (normal weight) slab and the weight of the ceiling as 1.5 lb/ft².To account for the weight of ducts, piping, conduit, and so forth, located between the slab and ceiling (and supported by hangers from the slab), an additional dead load allowance of 20 lb/ft² is assumed. The designer initially estimates the self-weight of beams B1 at 30 lb/ft and the 24-ft girders B2 on column lines 1 and 2 at 50 lb/ft. Establish the magnitude of the dead load distribution on beam B1 and girder B2 and draw the free-body diagrams for members B1 and B2. B panel panel E 2 25' a B3 B1 4²-4²- 2 B1 3 @ 8'-24'- (a) B2 B2 B3 2 A 5" slab B Duct IN suspended ceiling Section 1-1 (b) B2 loool Beam B1 Section 2-2 (c)

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
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Use the figure below to solve this problem. Assume a 5 in tick reinforced concrete (normal
weight) slab and the weight of the ceiling as 1.5 lb/ft².To account for the weight of ducts, piping,
conduit, and so forth, located between the slab and ceiling (and supported by hangers from the
slab), an additional dead load allowance of 20 lb/ft² is assumed. The designer initially estimates
the self-weight of beams B1 at 30 lb/ft and the 24-ft girders B2 on column lines 1 and 2 at 50
lb/ft. Establish the magnitude of the dead load distribution on beam B1 and girder B2 and draw
the free-body diagrams for members B1 and B2.
25'
a
B
panel panel
£2
&
B3
B1
4²-4²-
2
11
4-
B1
3 @ 8'-24'-
(a)
B2
B2
B3
I
2
(A)
5" slab B
Duct IU
suspended ceiling
Section 1-1
(b)
B2
loool
Beam B1
Section 2-2
(c)
Transcribed Image Text:Use the figure below to solve this problem. Assume a 5 in tick reinforced concrete (normal weight) slab and the weight of the ceiling as 1.5 lb/ft².To account for the weight of ducts, piping, conduit, and so forth, located between the slab and ceiling (and supported by hangers from the slab), an additional dead load allowance of 20 lb/ft² is assumed. The designer initially estimates the self-weight of beams B1 at 30 lb/ft and the 24-ft girders B2 on column lines 1 and 2 at 50 lb/ft. Establish the magnitude of the dead load distribution on beam B1 and girder B2 and draw the free-body diagrams for members B1 and B2. 25' a B panel panel £2 & B3 B1 4²-4²- 2 11 4- B1 3 @ 8'-24'- (a) B2 B2 B3 I 2 (A) 5" slab B Duct IU suspended ceiling Section 1-1 (b) B2 loool Beam B1 Section 2-2 (c)
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