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Posted By: India Member Level: Diamond Posted Date: 29 Dec 2007
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2006 Jawaharlal Nehru Technological University B.Tech Regular II Year II Sem - RR220104 ( Reg. April / May'06 - Set 1) STRUCTURAL ANALYSIS-I Question paper
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Code No: RR220104 Set No. 1
II B.Tech II Semester Regular Examinations, Apr/May 2006
STRUCTURAL ANALYSIS-I
(Civil Engineering)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
1. Draw the bending moment and shear force diagram of a propped cantilever beam of span 6m due to a point load of 6 kN at the mid span. [16]
2. Find the fixed end moments for a fixed beam of span 6 m subjected to a concentrated clockwise moment of 10 kNm at 2.5 m from the left end. [16]
3. A pin jointed warren truss of span 5m carries loads at the upper joints, as shown in Figure 1. Calculate the forces in members AC, AD, CD, and DE using tension coefficients. [16]
Figure 1:
4. Analyse the continuous beam shown in Figure 2 by Clapeyron’s theorem of three moments if support B sinks by 10mm. Also sketch the BMD and SFD. Take E =15 kN/mm
2 and I = 4×108
mm
4. [16]
Figure 2:
5. Define Strain energy. Derive an expression for Strain energy for a linear elastic
system under shear force. [16]
6. A Warren girder of through type bridge of 30m span has five panels of 6m each. All the triangles are equilateral. When the following wheel system of three loads, which may cross with the 60kN load leading, rolls along the girder, from left to right, loads are transmitted to the lower joints through cross girders at the panel points.
Wheel load(KN) : 120 120 60
Spacing (m) : 3 4
Find the maximum forces in the right hand diagonal of the second panel from the
left. [16]
7. An over hanging beam DABC , 14m long is supported at A and B . DA=BC=2m; AB=10m. Draw the influence lines for the reactions at A and B, shear and bending moment at section 3m from A. Hence obtain their values for a uniformly distributed load of 10kN/m, 5m long acting from A. [16]
8. While Fabricating the pin pointed frame shown in Figure 3; the member AC was the last member to be fitted, and was found to be 1mm short of the resumed lasted. Find the force in AC the diagonal members are 1000mm
2 in area while others are
2000mm
2 in area E = 200Gpa [16]
Figure 3:
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