USN 06cvs3

Fifth Semester B.E. Degree Examination, Dec.2013 lJan.2ol[Structural Analysis - ll

Time: 3 hrs. Max. Marks:100Note: 1. Answer FIVE full questions, selecting

at lesst TWO questions from each part.2. Missing data, rf uny, may suitably be assumed.

I a. The following system of loads move from left to right on a 15 m span. the 40 kN loadleading as,shown in Fig.Ql(a). For a section'C' 4m from the left support, determine the (i)maximum bending moment (ii) maximum negative and positive S.F. (12 Marks)

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Fig.Ql(a) Fig.e2b. Draw the ILD for shear force and B.M. for a section at 5 m from left end of a simply

supported beam 20 m long. Henc0 calculate the maximum S.F. and maximum B.M. at thesection due to an UDL of length 8 m and intensity 10 kN/m. (08 Marks)

Analyse the continuous beam loaded as shown inlnig qZ by the slope deflection method.Support B sinks by 10 mm,'iake E:2x10s N/mm2 urd I - torto? *-4. Sk.t"h the B.M. andS.F. diagrams. (20 Marks)

Analyse the frame show in Fig.Q3S.F. diagrams.

Fig.Q3

Analyse the frame shown in Fig.Q4 bydiagram.

by moment distribution *.tnoa. Draw the B.M. diagram and(20 Marks)

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f

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Fig.Qa

moment distribution method and draw bending moment(20 Marks)

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Fig.Q5 by Kani's method and draw B.M.Dr5 Analyse the continuous beam

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8a.

PART _ B

Ioaded as shown in

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(20 M*rks)

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Analyse the rrgi jointed plane frame shown in Fig.Q7,

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b.

c.

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rll t'i i 'Using matrix flexibrilily method, determine the forces in the members of truss and also determinereactions at supports Take reaction at support A as redundant. ,q and E are the same for allmembers.

,,, , ,,,, (20 Marks)

''" . Fig.Q7

by stiffneisirnethod. Draw B.M.D.,, ,,,,, (20 Marks)

DefiAe' the following terms:

li) Free vibration. (ii) Forced vibration (iii) Periodic motion(iv) Aperiodic motion (v) Natural period (vi) Degrees of freedom. 12Marks)

Write the differential equation of motion of a spring mass-dash pot system. 1o'+;ffir*g

A mass m is attached to the mid-point of a beam of length L. The mass of the beam is smrl|ilin comparison to m. Determine the spring constant and the frequency of the free vibratio, oi,'the beam in the vertical direction. The beam has uniform EI. [Refer Fig.Q8(c)]. (04 Marks)

G-lreFig.Q8(c)

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