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D192015 Pages:4

reaction at B.

PART C
Answer any two full questions, each carries 20 marks.

A cable is suspended between two supports 120m apart, at the same level. It
carries a UDL of 25kKN/m over the entire span. The dip of the cable is 10൩. Find
i) the length of the cable ii) tension in the cable at the support iii) lowest tension
in the cable.

Explain the various components of a suspension bridge with the help of a neat
figure.

A 3-hinged parabolic arch has a span of 18m and a rise of 6m. The arch is hinged
at the springing A and B and at the crown C. It carries a UDL of 2010/11 over
the left half of the span and a point load of 10011 at 4.5m from the right support
B. Find the bending moment, normal thrust and radial shear at a section 3m from
left end.

Draw the influence line diagram for bending moment at any section of a three
hinged arch.

A cable is suspended between two supports 120m apart, at the same level. It
carries two concentrated loads each of 5124 at points 30m and 90m from left
support. The length of the cable is 160m. Determine 1) the support reactions 11)
tension in various portions of the cable.

A 3-hinged semi-circular arch of radius R carries a UDL of w/ unit run over the
whole span. Find i) horizontal thrust at each support ii) location and magnitude

of maximum bending moment.

بد بد ‎TRB‏

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