2-8 A uniform slender rod EJ is secured to the rigid. frame in the position by the hinge at E and roller at H and is carrying a 300-N load at its end Jas shown where = tan-¹(3/4). a) Describe with a simple diagram how the 300- N load imparts the rotational effect on rod EJ. ut w c) By proper judgment and without detailed calculations, assess the effect of changing the angle to 60° on the moment in part b). $57 OUR 1440 M Qu 800 mm 1200 mm 300 N
2-8 A uniform slender rod EJ is secured to the rigid. frame in the position by the hinge at E and roller at H and is carrying a 300-N load at its end Jas shown where = tan-¹(3/4). a) Describe with a simple diagram how the 300- N load imparts the rotational effect on rod EJ. ut w c) By proper judgment and without detailed calculations, assess the effect of changing the angle to 60° on the moment in part b). $57 OUR 1440 M Qu 800 mm 1200 mm 300 N
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
![2-8 A uniform slender rod EJ is secured to the rigid
frame in the position by the hinge at E and roller
at H and is carrying a 300-N load at its end Jas
shown where 0 = tan-¹(3/4).
a) Describe with a simple diagram how the 300-
N load imparts the rotational effect on rod EJ.
c) By proper judgment and without detailed
calculations, assess the effect of changing
the angle to 60° on the moment in part b).
[b) (i) MH-216k N-m or 216 N-m CW; (ii) ME=-360k N-m or 360 N-m CW
2-9
Consider the frame and its loadings as shown
where a 0.8 m, b= 1.2 m, and = 30°.
a) Describe with a simple diagram how the
given force system on the given frame may
form a couple and what effect it imparts on
the frame
c) Without detailed calculations, assess the
difference between replacing the given force
system by an equivalent formaple system
at A and at Em
[b) (i) M = 120k N-m or 120 N-m CCW=-173.2/N and M = 120k N-m
(or 120 N-m CCW)]
2-10 Consider the beam and its loadings as shown
where e 1.0 m and h = 0.7 m.
a) Describe with a simple diagram how the
given force at any given point on a rigid body
may have an equivalent force-couple at
another point..
Without detailed calculations, assess the
effect of changing the dimensions e and hon
the answer obtained in part b) (i).
[b) (i) E= -2.0/ kN and M = -2.0k kN-m (or 2.0 kN-m CW); (ii) E= -1.6/kN,
4.0 m; (iii) M=-6.4k kN.m]
800 mm
Figure
D
Figure
Figure
H
0
1200 mm
P2-8
200 N
P2-9
B
100 N
E
C
C
P2-10
0.5 m
2 kN
300 N
1.5 m-e2.0 m-
B
↑
800 N/m
000](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1ef30170-7f46-40c4-a1ee-7333021f101b%2Fecc7f5cc-0fa8-4ecf-be5d-22b808977c38%2F1c5es7_processed.jpeg&w=3840&q=75)
Transcribed Image Text:2-8 A uniform slender rod EJ is secured to the rigid
frame in the position by the hinge at E and roller
at H and is carrying a 300-N load at its end Jas
shown where 0 = tan-¹(3/4).
a) Describe with a simple diagram how the 300-
N load imparts the rotational effect on rod EJ.
c) By proper judgment and without detailed
calculations, assess the effect of changing
the angle to 60° on the moment in part b).
[b) (i) MH-216k N-m or 216 N-m CW; (ii) ME=-360k N-m or 360 N-m CW
2-9
Consider the frame and its loadings as shown
where a 0.8 m, b= 1.2 m, and = 30°.
a) Describe with a simple diagram how the
given force system on the given frame may
form a couple and what effect it imparts on
the frame
c) Without detailed calculations, assess the
difference between replacing the given force
system by an equivalent formaple system
at A and at Em
[b) (i) M = 120k N-m or 120 N-m CCW=-173.2/N and M = 120k N-m
(or 120 N-m CCW)]
2-10 Consider the beam and its loadings as shown
where e 1.0 m and h = 0.7 m.
a) Describe with a simple diagram how the
given force at any given point on a rigid body
may have an equivalent force-couple at
another point..
Without detailed calculations, assess the
effect of changing the dimensions e and hon
the answer obtained in part b) (i).
[b) (i) E= -2.0/ kN and M = -2.0k kN-m (or 2.0 kN-m CW); (ii) E= -1.6/kN,
4.0 m; (iii) M=-6.4k kN.m]
800 mm
Figure
D
Figure
Figure
H
0
1200 mm
P2-8
200 N
P2-9
B
100 N
E
C
C
P2-10
0.5 m
2 kN
300 N
1.5 m-e2.0 m-
B
↑
800 N/m
000
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