80 mm 20 mm | 3P glued joint · NA 2 m 2 m 160 mm В 1.0 m 1.0 m -le 20 mm

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Correct Answer are : 

1. D. 110

2. F. 121,000

3. I. 5.32

4. O. 6.78

5. S. 10.26

6. 17.24 

The manufactured wood beam carries the concentrated loads as shown in the figure.
20 mm
80 mm
ЗР
- 2 m
P
2 m
glued
joint
В
160 mm
- ΝΑ
A
1.0 m
1.0 m
20 mm
1.
Calculate the depth of neutral axis (mm) of the beam section from the bottom.
А) 60
В) 70
C) 80
D) 110
2.
Calculate the maximum static moment of area the section about the neutral axis in
mm³.
E) 96,000
What is the maximum safe value of P in kN so that the maximum bending stress
F) 121,000
G) 75,000
H) 304,000
3.
will not exceed its working stress of 24 MPa in tension under negative bending?
I) 5.32
J) 3.39
К) 6.78
L) 2.66
4.
What is the maximum safe value of P in kN so that the maximum bending stress
will not exceed its working stress of 24 MPa in tension under positive bending?
M) 5.32
N) 3.39
0) 6.78
P) 2.66
5.
What is the maximum safe value of P in kN so that the maximum shear stress in
the wood will not exceed its working stress of 6 MPa?
Q) 13.68
R) 8.21
S) 10.26
T) 6.84
6.
What is the maximum safe value of P in kN so that the shear stress in the glue will
not exceed its working stress of 8 MPa?
U) 6.46
V) 12.93
W) 21.55
X) 17.24
Transcribed Image Text:The manufactured wood beam carries the concentrated loads as shown in the figure. 20 mm 80 mm ЗР - 2 m P 2 m glued joint В 160 mm - ΝΑ A 1.0 m 1.0 m 20 mm 1. Calculate the depth of neutral axis (mm) of the beam section from the bottom. А) 60 В) 70 C) 80 D) 110 2. Calculate the maximum static moment of area the section about the neutral axis in mm³. E) 96,000 What is the maximum safe value of P in kN so that the maximum bending stress F) 121,000 G) 75,000 H) 304,000 3. will not exceed its working stress of 24 MPa in tension under negative bending? I) 5.32 J) 3.39 К) 6.78 L) 2.66 4. What is the maximum safe value of P in kN so that the maximum bending stress will not exceed its working stress of 24 MPa in tension under positive bending? M) 5.32 N) 3.39 0) 6.78 P) 2.66 5. What is the maximum safe value of P in kN so that the maximum shear stress in the wood will not exceed its working stress of 6 MPa? Q) 13.68 R) 8.21 S) 10.26 T) 6.84 6. What is the maximum safe value of P in kN so that the shear stress in the glue will not exceed its working stress of 8 MPa? U) 6.46 V) 12.93 W) 21.55 X) 17.24
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