# JNTU Kakinada B-Tech 3-1 RT31012 I STRUCTURAL ANALYSIS – II R13 April 2018 Question Paper

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Code No: RT31012
III B. Tech I Semester Supplementary Examinations, May-2018
STRUCTURAL ANALYSIS ? II (Civil Engineering)Time: 3 hours Max. Marks: 70
Note: 1. Question Paper consists of two parts (Part-A and Part-B) 2. Answering the question in Part-A is compulsory
3. Answer any THREE Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
1 a) State Eddy?s theorem. [3M]
b) Write the basic assumptions of analysis in Cantilever method when lateral loads
applied on the structure.
[4M]
c) Write an expression to find maximum tension , horizontal and vertical reactions of
three hinged stiffened girder in suspension bridge.
[4M]
d) Define rotational stiffness factor and carryover factor in moment distribution
method.
[4M]
e) Differentiate between stiffness and flexibility matrix method of analysis. [3M]
f) Determine support moments at A and C by Kani?s method for the following fig.
[4M]
PART -B
2 a) Determine the horizontal thrust and draw bending moment diagram, shear force
diagram and find normal thrust at point ?D? of three hinged parabolic arch ACB as
shown in fig.:
[12M]
b) Differentiate between three hinged and two hinged arches. [4M]
3 a) What are the limitations in Cantilever method of approximate analysis? [4M]
b) Analyze the two storey rigid moment resisting frame shown in fig. by Cantilever
method. Draw the BMD and SFD. Assume uniform flexural rigidity of beams and
columns.
1 of 3
[12M]
R13
SET – 1
|”|”|||”|”’|||’|

Code No: RT31012
III B. Tech I Semester Supplementary Examinations, May-2018
STRUCTURAL ANALYSIS ? II (Civil Engineering)Time: 3 hours Max. Marks: 70
Note: 1. Question Paper consists of two parts (Part-A and Part-B) 2. Answering the question in Part-A is compulsory
3. Answer any THREE Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
1 a) State Eddy?s theorem. [3M]
b) Write the basic assumptions of analysis in Cantilever method when lateral loads
applied on the structure.
[4M]
c) Write an expression to find maximum tension , horizontal and vertical reactions of
three hinged stiffened girder in suspension bridge.
[4M]
d) Define rotational stiffness factor and carryover factor in moment distribution
method.
[4M]
e) Differentiate between stiffness and flexibility matrix method of analysis. [3M]
f) Determine support moments at A and C by Kani?s method for the following fig.
[4M]
PART -B
2 a) Determine the horizontal thrust and draw bending moment diagram, shear force
diagram and find normal thrust at point ?D? of three hinged parabolic arch ACB as
shown in fig.:
[12M]
b) Differentiate between three hinged and two hinged arches. [4M]
3 a) What are the limitations in Cantilever method of approximate analysis? [4M]
b) Analyze the two storey rigid moment resisting frame shown in fig. by Cantilever
method. Draw the BMD and SFD. Assume uniform flexural rigidity of beams and
columns.
1 of 3
[12M]
R13
SET – 1
|”|”|||”|”’|||’|

Code No: RT31012

4 a) A three hinged stiffened girder (ACB) of suspension bridge span 120m subjected
to two point loads 240kN and 340kN as shown in fig. Find Bending moment at
40m from left end. Assume supporting cable has central dip 12m. Find the
maximum tension in the cable and draw bending moment diagram for the girder.
[8M]
b) A two hinged stiffened girder span 100m and central dip 10m is subjected to two
point loads 200kN and 400kN at 20m and 80m from left support respectively. Find
the Shear force and Bending moment at 25m from left end. Also find the
maximum tension in the cable.
[8M]
5 a) Analyze the continuous beam shown in fig. by moment distribution method.
Assume E=2×10
5
MPa and I=10
8
mm
4
.
[10M]
b) Write about stiffness and carry over factors of moment distribution method.
[6M]
6 a) Analyze the continuous beam shown in fig. by Kani?s method. Assume E=2×10
5
MPa and I=10
8
mm
4

[8M]
b) Analyze the frame shown in fig. by Kani?s method

2 of 3
[8M]
R13
SET – 1
|”|”|||”|”’|||’|

Code No: RT31012
III B. Tech I Semester Supplementary Examinations, May-2018
STRUCTURAL ANALYSIS ? II (Civil Engineering)Time: 3 hours Max. Marks: 70
Note: 1. Question Paper consists of two parts (Part-A and Part-B) 2. Answering the question in Part-A is compulsory
3. Answer any THREE Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
1 a) State Eddy?s theorem. [3M]
b) Write the basic assumptions of analysis in Cantilever method when lateral loads
applied on the structure.
[4M]
c) Write an expression to find maximum tension , horizontal and vertical reactions of
three hinged stiffened girder in suspension bridge.
[4M]
d) Define rotational stiffness factor and carryover factor in moment distribution
method.
[4M]
e) Differentiate between stiffness and flexibility matrix method of analysis. [3M]
f) Determine support moments at A and C by Kani?s method for the following fig.
[4M]
PART -B
2 a) Determine the horizontal thrust and draw bending moment diagram, shear force
diagram and find normal thrust at point ?D? of three hinged parabolic arch ACB as
shown in fig.:
[12M]
b) Differentiate between three hinged and two hinged arches. [4M]
3 a) What are the limitations in Cantilever method of approximate analysis? [4M]
b) Analyze the two storey rigid moment resisting frame shown in fig. by Cantilever
method. Draw the BMD and SFD. Assume uniform flexural rigidity of beams and
columns.
1 of 3
[12M]
R13
SET – 1
|”|”|||”|”’|||’|

Code No: RT31012

4 a) A three hinged stiffened girder (ACB) of suspension bridge span 120m subjected
to two point loads 240kN and 340kN as shown in fig. Find Bending moment at
40m from left end. Assume supporting cable has central dip 12m. Find the
maximum tension in the cable and draw bending moment diagram for the girder.
[8M]
b) A two hinged stiffened girder span 100m and central dip 10m is subjected to two
point loads 200kN and 400kN at 20m and 80m from left support respectively. Find
the Shear force and Bending moment at 25m from left end. Also find the
maximum tension in the cable.
[8M]
5 a) Analyze the continuous beam shown in fig. by moment distribution method.
Assume E=2×10
5
MPa and I=10
8
mm
4
.
[10M]
b) Write about stiffness and carry over factors of moment distribution method.
[6M]
6 a) Analyze the continuous beam shown in fig. by Kani?s method. Assume E=2×10
5
MPa and I=10
8
mm
4

[8M]
b) Analyze the frame shown in fig. by Kani?s method

2 of 3
[8M]
R13
SET – 1
|”|”|||”|”’|||’|

Code No: RT31012

7 a) Analyze the continuous beam shown in fig. by Flexibility method. Assume down
ward settlement at B and C are 10mm and 5mm respectively. And uniform
flexural rigidity of beam AB and BC= EI=18×10
11
N-mm
2
.

[8M]
b) Analyze the continuous beam shown in fig. by Stiffness method. Assume uniform
flexural rigidity of beam AB and BC= EI=12×10
11
N-mm
2
.
[8M]

*****

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R13
SET – 1

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