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D1010 Pages: 3

maximum shear force and the maximum bending moment at a section 4m from

left support.

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PART C

Answer any two full questions, each carries 20 marks.
With the help of a sketch, explain the various steps involved in the analysis of a 8
loaded cable
A light cable is supported at two points 20m apart which are at the same level. 12
The cable supports three concentrated loads of magnitudes 20 KN, 30 KN and 25
KN at points 1,2 and 3 respectively. The points 1,2 and 3 are at distances 5m,
10m,15 m respectively from the left support. The deflection at first point is found
to be 0.8m. Determine the tension in the different segments and total length of
the cable.
Explain with the help of sketches, the different types of arches. 8
A flexible suspension cable of weight 0.75 N/m hangs between two vertical walls 12
60m apart, the left hand end being attached to the wall at point 10m below the
right hand end. A concentrated load of 100 N is attached to the cable in such a
manner that the point of attachment of the load is 20m horizontally from the left
hand wall and 5m below the left hand support. Show that the maximum resultant
cable tension is at the right hand end and find its value. The cable weight may be
taken as uniformly distributed horizontally.
State Eddy’s theorem 5
A parabolic three hinged arch carries a 001 of 30 kKN/m on the left half of the 15
span. It has a span of 16 m and a central rise of 3 m. Determine the resultant
reactions at the supports. Find the bending moment, normal thrust and radial

shear at a section 2m from left support.

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