Problem 2 Figures on page 3 show the partial framing plan and elevations of a three story steel structure. The floor dead load is 60 psf and the floor live load is 80 psf. The roof dead load is 20 psf and the roof live load is 10 psf. Assume that the stair load is the same as the floor load. Using the LRFD load combinations, find the: Ultimate loading for the beams B-1 through B-9, located on the second level. Ultimate loading for the beams RB-1 through RB-9, located on the roof. Ultimate loading for the girders G-3 through G-5, located on the second level. Ultimate loading for the girders RG-3 through RG-5, located on the roof. Ultimate loading for the columns G-1 through G-3, H-1, and H-2 between the first and second levels. Compare the loading in columns G-3, H-1, and H-2 by adding up the loads transferred to them from the beams and the girders they sunnort and the tributary areas. (a) (b) (d) (e)

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
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Problem 1
Figures on page 2 show the floor framing plans of steel buildings, which are made with 3.5" thick concrete
slabs. The mechanical and electrical systems weigh 5 psf, the steelworks weigh 7.5 psf, and the floor live
load is 50 psf. The unit weight of concrete is 150 pcf. For cases A through E:
Find the ultimate loading on only the beams or girders marked in the drawings
using the LRFD load combination.
(a)
Find the maximum moments and shears for these members.
Problem 2
Figures on page 3 show the partial framing plan and elevations of a three story steel structure. The floor dead
load is 60 psf and the floor live load is 80 psf. The roof dead load is 20 psf and the roof live load is 10 psf.
Assume that the stair load is the same as the floor load. Using the LRFD load combinations, find the:
Ultimate loading for the beams B-1 through B-9, located on the second level.
(8)
Ultimate loading for the beams RB-1 through RB-9, located on the roof.
(a)
Ultimate loading for the girders G-3 through G-5, located on the second level.
()
Ultimate loading for the girders RG-3 through RG-5, located on the roof.
Ultimate loading for the columns G-1 through G-3, H-1, and H-2 between the
(e)
first and second levels. Compare the loading in columns G-3, H-1, and H-2 by
adding up the loads transferred to them from the beams and the girders they
support, and the tributary areas.
Maximum shear and moments for the beams B-2, B-4, G-3, and G-4, on the
second level. (The loading has already been found in part a, and c from
above.)
Pag
Transcribed Image Text:Problem 1 Figures on page 2 show the floor framing plans of steel buildings, which are made with 3.5" thick concrete slabs. The mechanical and electrical systems weigh 5 psf, the steelworks weigh 7.5 psf, and the floor live load is 50 psf. The unit weight of concrete is 150 pcf. For cases A through E: Find the ultimate loading on only the beams or girders marked in the drawings using the LRFD load combination. (a) Find the maximum moments and shears for these members. Problem 2 Figures on page 3 show the partial framing plan and elevations of a three story steel structure. The floor dead load is 60 psf and the floor live load is 80 psf. The roof dead load is 20 psf and the roof live load is 10 psf. Assume that the stair load is the same as the floor load. Using the LRFD load combinations, find the: Ultimate loading for the beams B-1 through B-9, located on the second level. (8) Ultimate loading for the beams RB-1 through RB-9, located on the roof. (a) Ultimate loading for the girders G-3 through G-5, located on the second level. () Ultimate loading for the girders RG-3 through RG-5, located on the roof. Ultimate loading for the columns G-1 through G-3, H-1, and H-2 between the (e) first and second levels. Compare the loading in columns G-3, H-1, and H-2 by adding up the loads transferred to them from the beams and the girders they support, and the tributary areas. Maximum shear and moments for the beams B-2, B-4, G-3, and G-4, on the second level. (The loading has already been found in part a, and c from above.) Pag
CE
num
lock
Building Structures I (ARCH 4075/5775G)
Homework No. 3
7
Note: Figures on this page are for Problem #1
Building Structures I (ARCH 4075/5775G)
A
Homework No.3
20'-0"
B
enter
Note: Figures on this page are for Problem #2
3.
30'-0"
24'-0"
3 EQ. SP.
3 EQ. SP.
В-1
G-1
G-1
G-2
Plan
F
C
30'-0"
3 EQ. SP.
Partial Framing Plan
B-3
G-4
G-3
I-
B-8
E
B-8
8 EQ. Spaces
10'-0"
Masonry Wall
15-0"
B-9
Plan
Steel Column
Partial Framing Plan
B-1
18'-0"
Section A
18'-0"
2 EQ. SP. 2 EQ. SP.
I.
2
3
H
1
40'-0"
G-1
Roof
Plan
3 rd
HI
2 nd
3 EQ. SP. I 3 EQ. SP.
Plan
1 st
Section A
East Elevation
South Elevation
Note: Drawings may not be to scale
Page 3
Note: Drawings may not be to scale
Page 2
12'-0"
N B-1
24'-0"
24-0"
15'-0"
10'-0"
B-2
-H-
| 15'-0" 12'-0",12'-0",
3 EQ. SP.
B-1
G-5
B-2
B-4
G-5
B-6
B-5
B-5
B-7
25'-0"
Transcribed Image Text:CE num lock Building Structures I (ARCH 4075/5775G) Homework No. 3 7 Note: Figures on this page are for Problem #1 Building Structures I (ARCH 4075/5775G) A Homework No.3 20'-0" B enter Note: Figures on this page are for Problem #2 3. 30'-0" 24'-0" 3 EQ. SP. 3 EQ. SP. В-1 G-1 G-1 G-2 Plan F C 30'-0" 3 EQ. SP. Partial Framing Plan B-3 G-4 G-3 I- B-8 E B-8 8 EQ. Spaces 10'-0" Masonry Wall 15-0" B-9 Plan Steel Column Partial Framing Plan B-1 18'-0" Section A 18'-0" 2 EQ. SP. 2 EQ. SP. I. 2 3 H 1 40'-0" G-1 Roof Plan 3 rd HI 2 nd 3 EQ. SP. I 3 EQ. SP. Plan 1 st Section A East Elevation South Elevation Note: Drawings may not be to scale Page 3 Note: Drawings may not be to scale Page 2 12'-0" N B-1 24'-0" 24-0" 15'-0" 10'-0" B-2 -H- | 15'-0" 12'-0",12'-0", 3 EQ. SP. B-1 G-5 B-2 B-4 G-5 B-6 B-5 B-5 B-7 25'-0"
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