18 12⁰ PLAN SECTION =1 S B1 B2 B3 B F 10 cantilevered beams columns W The load per foot on Joists J-1 is larger than b. The load per foot on Beam B-1 is larger than c. In which column does the largest axial stress occur? N S -E 2. The roof of a small building schematic plan and section. Closely spaced joists (J-1 and J-2) span north-south and bear on Beams (B-1, B-2 & B-3) which in turn bear on Columns A-F. The Beams cantilever 10' beyond the east row of columns. All joists are spaced the same distance on center All columns have the same cross section area of 30.0 in² Roof Live Load = 40 PSF Roof Dead Load = 30 PSF as shown in the Allowable axial stress in columns, Fa= 1000 psi (Neglect the self-weight of columns) smaller than smaller than the same as the load per foot on Joists J-2 the load per foot on Beam B-3 the same as A B C D E F How large is the axial stress in the column selected in Part (c)? (For this problem, disregard effects of slenderness, and simply calculate the axial stress)
18 12⁰ PLAN SECTION =1 S B1 B2 B3 B F 10 cantilevered beams columns W The load per foot on Joists J-1 is larger than b. The load per foot on Beam B-1 is larger than c. In which column does the largest axial stress occur? N S -E 2. The roof of a small building schematic plan and section. Closely spaced joists (J-1 and J-2) span north-south and bear on Beams (B-1, B-2 & B-3) which in turn bear on Columns A-F. The Beams cantilever 10' beyond the east row of columns. All joists are spaced the same distance on center All columns have the same cross section area of 30.0 in² Roof Live Load = 40 PSF Roof Dead Load = 30 PSF as shown in the Allowable axial stress in columns, Fa= 1000 psi (Neglect the self-weight of columns) smaller than smaller than the same as the load per foot on Joists J-2 the load per foot on Beam B-3 the same as A B C D E F How large is the axial stress in the column selected in Part (c)? (For this problem, disregard effects of slenderness, and simply calculate the axial stress)
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question

Transcribed Image Text:18
12⁰
PLAN
SECTION
=1
S
B1
B2
B3
B
F
10
cantilevered
beams
columns
W
The load per foot on Joists J-1 is
larger than
b. The load per foot on Beam B-1 is
larger than
c. In which column does the largest axial stress occur?
N
S
2. The roof of a small building
schematic plan and section.
Closely spaced joists (J-1 and J-2) span north-south and
bear on Beams (B-1, B-2 & B-3) which in turn bear on
Columns A-F. The Beams cantilever 10' beyond the east
row of columns.
All joists are spaced the same distance on center
All columns have the same cross section area of 30.0 in²
Roof Live Load = 40 PSF
Roof Dead Load = 30 PSF
as shown in the
Allowable axial stress in columns, Fa= 1000 psi
(Neglect the self-weight of columns)
smaller than
smaller than
the same as
the load per foot on Joists J-2
the load per foot on Beam B-3
the same as
A B C D E F
How large is the axial stress in the column selected in Part (c)?
(For this problem, disregard effects of slenderness, and simply calculate the axial stress)
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