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07/12/2017 Structural Analysis - I - - Unit 7 - Week 6
https://onlinecourses.nptel.ac.in/noc17_ce25/unit?unit=57&assessment=64 1/6
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Unit 7 - Week 6
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Week 1
Week 2
Week 3
Week 4
Week 5
Week 6
Week 7
Lecture 28 :Influence LineDiagram andmoving Loads
Lecture 29 :Influence LineDiagram andmoving Loads(Contd.)
Lecture 30 :Influence LineDiagram andmoving Loads(Contd.)
Lecture 31 :Influence LineDiagram andmoving Loads(Contd.)
Lecture 32 :Influence LineDiagram andmoving Loads(Contd.)
Quiz : Week 6Assignment 1
Week 6:Assignment 1Solution
Due on 2017-09-06, 23:59 IST.
1 point1)
1 point2)
Week 6 Assignment 1The due date for submitting this assignment has passed.
Submitted assignment
The influence line diagram for bending moment at C, at a distance of4m from the left support of a simply supported beam girder AB is shown inthe figure. Find the maximum bending moment at C when a uniformlydistributed load (udl) of intensity 4 kN/m longer than the span, crosses thegirder from left to right.
12 kN-m
24 kN-m
48 kN-m
96 kN-m
No, the answer is incorrect. Score: 0
Accepted Answers:
96 kN-m
The influence line diagram of shear force at C, at a distance of 4mfrom the left support of a simply supported beam girder AB is shown in thebelow figure. Find the shear force at section C due to an udl of 4 kN/mintensity, spanning over the entire beam.
07/12/2017 Structural Analysis - I - - Unit 7 - Week 6
https://onlinecourses.nptel.ac.in/noc17_ce25/unit?unit=57&assessment=64 2/6
Week 8
Week 9
Week 10
Week 11
Week 12
1 point3)
1 point4)
1 point5)
16 kN
8 kN
4 kN
2 kN
No, the answer is incorrect. Score: 0
Accepted Answers:
16 kN
A load ‘W’ is moving from left to right support on a simply supportedbeam of span ‘L’. Find the maximum bending moment at asection ‘0.4L’ apart from the left support.
0.16 WL
0.20 WL
0.24 WL
0.25 WL
No, the answer is incorrect. Score: 0
Accepted Answers:
0.24 WL
The ordinates of the influence line for the left support reaction of asimply supported beam with an overhang on the left are 1.0 and 1.2 at theleft support point and at the free end respectively. The distance betweentwo supports is 5 m, find the length of the overhang portion.
0.2 m
1.0 m
1.2 m
6.0 m
No, the answer is incorrect. Score: 0
Accepted Answers:
1.0 m
The ordinate of the influence line for the mid-span bending momentof a simply supported beam is 1 m. If the beam carries a udl of 6 kN/mover the entire span, the maximum mid-span bending moment will be
07/12/2017 Structural Analysis - I - - Unit 7 - Week 6
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1 point6)
1 point7)
1 point8)
over the entire span, the maximum mid-span bending moment will be
6 kN-m
8 kN-m
12 kN-m
24 kN-m
No, the answer is incorrect. Score: 0
Accepted Answers:
12 kN-m
The maximum bending moment at the left quarter point of a simplysupported beam, due to crossing of an udl of length shorter than the beamspan in the direction left to right; would occur after the load had justcrossed the section by
one-fourth of its length
half of its length
three-fourth of its length
its full length
No, the answer is incorrect. Score: 0
Accepted Answers:
three-fourth of its length
The value of the ordinates, at the quarter span, of the influence linediagram for mid-span bending moment of a simply supported beam is 0.5m. If the span of the beam is doubled what will be the ordinates at the mid-span of the influence line.
2.0 m 1.0 m
0.5 m
None of the above
No, the answer is incorrect. Score: 0
Accepted Answers:2.0 m
A simply supported beam of span 3 m carries a point load of 30 kNwhich may be placed anywhere within the middle third of the span. Theminimum value for mid-span bending moment will be
20 kN- m
15 kN- m
22.5 kN- m
None of the above
No, the answer is incorrect. Score: 0
Accepted Answers:
15 kN- m
An udl of intensity 10 kN/m and length 3 m passing through a simply
07/12/2017 Structural Analysis - I - - Unit 7 - Week 6
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1 point9)
1 point10)
1 point11)
1 point12)
An udl of intensity 10 kN/m and length 3 m passing through a simplysupported beam of span 6 m. Find the maximum bending moment at asection 2m from the left support.
20 kN- m
30 kN- m
25 kN- m
40 kN- m
No, the answer is incorrect. Score: 0
Accepted Answers:
30 kN- m
An udl of intensity 10 kN/m and length 3 m passing through a simplysupported beam of span 9 m. Find the maximum positive and negativeshear force at a section 3 m from the left support.
10.0 kN and -3.33 kN
15.0 kN and -5.0 kN
12.5 kN and -5.0 kN
20.0 kN and -6.67 kN
No, the answer is incorrect. Score: 0
Accepted Answers:
15.0 kN and -5.0 kN
Two wheel loads, 80 kN and 200 kN, spaced 2 m apart, move on agirder of span 9 m. Find the maximum positive and negative shear force ata section 3m from the left end. Any wheel load can lead the other.
168.88 kN and -60 kN
200 kN and -75.55 kN
200 kN and -60 kN
168.88 kN and -75.55 kN
No, the answer is incorrect. Score: 0
Accepted Answers:
168.88 kN and -75.55 kN
For the continuous beam shown in the below figure, the influenceline diagram for support reaction at D is best represented as
07/12/2017 Structural Analysis - I - - Unit 7 - Week 6
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1 point13)
No, the answer is incorrect. Score: 0
Accepted Answers:
Influence line for support reaction at C of the continuous beam givenin the figure will be
07/12/2017 Structural Analysis - I - - Unit 7 - Week 6
https://onlinecourses.nptel.ac.in/noc17_ce25/unit?unit=57&assessment=64 6/6
No, the answer is incorrect. Score: 0
Accepted Answers:
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