-A billboard 3 m high by 4 m wide is supported as shown in the Pigure. The total weight of the billboard is 30 kN. H = 1.5 m, 0 60°. Wind pressure, q=1.44 kPa Wind pressure coefficient, c = 1.0 The vertical component of the reaction at A is nearest Bilboard 3 mx 4m to: A. 8 kN B. 1. N C. :0 kN D 15 KN What is the axial stress in strut BC whose cruss-sectional dimension is 6 mmx 76 inm. C. 87.7 MPa D. 96.3 MPa A. 82.4 MPa B. 102.7 MPa Il the strut AB were replaced by a 16 mm ø steel cable, determine the normal stress (in MPa) in the cable. A. 108.7 MPa 8 85.6 MPa C. 125.6 MPa D. 99.6 MPa coefficient, e b'aunssaad punm
-A billboard 3 m high by 4 m wide is supported as shown in the Pigure. The total weight of the billboard is 30 kN. H = 1.5 m, 0 60°. Wind pressure, q=1.44 kPa Wind pressure coefficient, c = 1.0 The vertical component of the reaction at A is nearest Bilboard 3 mx 4m to: A. 8 kN B. 1. N C. :0 kN D 15 KN What is the axial stress in strut BC whose cruss-sectional dimension is 6 mmx 76 inm. C. 87.7 MPa D. 96.3 MPa A. 82.4 MPa B. 102.7 MPa Il the strut AB were replaced by a 16 mm ø steel cable, determine the normal stress (in MPa) in the cable. A. 108.7 MPa 8 85.6 MPa C. 125.6 MPa D. 99.6 MPa coefficient, e b'aunssaad punm
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Hi good evening Can you help me to answer this question please. I really need it before 8pm this evening. I hope for your kind consideration and help. especially 16-18.
![- A W12 x 28 is used as a crane runway girder
as shown in the figure. The girder is on a simple
span of 9 m. The crane wheel imparts a vertical load
of P = 90 kN and a lateral load of H = 7 kN. A
standard 490 N/m rail will be used. Use A 36 steel.
Allowable stresses are Fx = 0.6 Fy and Fby = 0.75F,.
Rail
Girder
Properties of W12 - 58:
d = 310 mm
br= 254.3 mım
tr = 16.30 mm
tw = 9.10 mnm
I = 197.71 ×106 mmª
ly = 44.54 x 106 mm
Weight = 846 N/m
Fy = 248 MPa
Conorete
bracket
13 Calculate the nearest value to the actual bending
stress about the x-axis of the beam.
A. 152.45 MPa
B. 128.75 MPa
С. 169.36 МPа
D. 112.42 MPa
14 Calculate the nearest value to the actual bending stress about the y-axis of the
beam.
A. 96.32 MPa
B. 100.48 MPa
C. 89.92 MPa
D. 63.58 MPa
|15 Using the interaction equation fox/Fbx + foy/Fby, which of the following length
(maximum) of the girder is acceptable assuming it is fully compact?
A. 5.9 m
B. 6.3 m
C. 5.6 m
D. 5.2 m
A billboard 3 m high
by 4 m wide is supported as
shown in the Figure. The
total weight of the billboard
is 30 kN. H = 1.5 m, 0 = 60°.
Wind pressure,
q = 1.44 kPa
Wind pressure coefficient,
C= 1.0
| 16 The vertical component of
the reaction at A is nearest
H
Billboard
3 mx 4m
to:
A. 8 kN
B. I. KN
. 0 KN
D 15 KN
17 What is the axial stress in strut BC whose ctuss-sectional dimension is 6 mm x
76 inm.
C. 87.7 MPa
A. 82.4 MPa
В. 102.7 МРа
D. 96.3 MPa
|18 Il the strut AB were replaced by a 16 mm ø steel cable, determine the normal
stress (in MPa) in the cable.
A. 108.7 MPa
B 85.6 MPa
С. 125.6 MPа
D. 99.6 MPa](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F32923dc2-c77e-4341-8ed7-2e54ac06c866%2F4342ed34-96a6-45d4-88b2-0e2f656fbb33%2Fo8uf1v_processed.jpeg&w=3840&q=75)
Transcribed Image Text:- A W12 x 28 is used as a crane runway girder
as shown in the figure. The girder is on a simple
span of 9 m. The crane wheel imparts a vertical load
of P = 90 kN and a lateral load of H = 7 kN. A
standard 490 N/m rail will be used. Use A 36 steel.
Allowable stresses are Fx = 0.6 Fy and Fby = 0.75F,.
Rail
Girder
Properties of W12 - 58:
d = 310 mm
br= 254.3 mım
tr = 16.30 mm
tw = 9.10 mnm
I = 197.71 ×106 mmª
ly = 44.54 x 106 mm
Weight = 846 N/m
Fy = 248 MPa
Conorete
bracket
13 Calculate the nearest value to the actual bending
stress about the x-axis of the beam.
A. 152.45 MPa
B. 128.75 MPa
С. 169.36 МPа
D. 112.42 MPa
14 Calculate the nearest value to the actual bending stress about the y-axis of the
beam.
A. 96.32 MPa
B. 100.48 MPa
C. 89.92 MPa
D. 63.58 MPa
|15 Using the interaction equation fox/Fbx + foy/Fby, which of the following length
(maximum) of the girder is acceptable assuming it is fully compact?
A. 5.9 m
B. 6.3 m
C. 5.6 m
D. 5.2 m
A billboard 3 m high
by 4 m wide is supported as
shown in the Figure. The
total weight of the billboard
is 30 kN. H = 1.5 m, 0 = 60°.
Wind pressure,
q = 1.44 kPa
Wind pressure coefficient,
C= 1.0
| 16 The vertical component of
the reaction at A is nearest
H
Billboard
3 mx 4m
to:
A. 8 kN
B. I. KN
. 0 KN
D 15 KN
17 What is the axial stress in strut BC whose ctuss-sectional dimension is 6 mm x
76 inm.
C. 87.7 MPa
A. 82.4 MPa
В. 102.7 МРа
D. 96.3 MPa
|18 Il the strut AB were replaced by a 16 mm ø steel cable, determine the normal
stress (in MPa) in the cable.
A. 108.7 MPa
B 85.6 MPa
С. 125.6 MPа
D. 99.6 MPa
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