Civil Engineering - Theory of Structures
Exercise : Theory of Structures - Section 1
- Theory of Structures - Section 1
- Theory of Structures - Section 2
- Theory of Structures - Section 3
- Theory of Structures - Section 4
36.
Two bars, one of steel and the other of copper having areas of cross-sections As and Ac, coefficient of expansion αs and αc and Young's Modulii Es and Es are rigidly connected together at the ends and subjected to temperature change of t°. If the length of the bars initially is L, the final extension δ of the two bars at t° temperature is given by
37.
The tangential component of stress on an plane inclined θ° to the direction of the force, may be obtained by multiplying the normal stress by
38.
The force in AD of the truss shown in given figure, is
39.
There are two hinged semicircular arches A, B and C of radii 5 m, 7.5 m and 10 m respectively and each carries a concentrated load W at their crowns. The horizontal thrust at their supports will be in the ratio of
40.
A spring of mean radius 40 mm contains 8 action coils of steel (N = 80000 N/mm2), 4 mm in diameter. The clearance between the coils being 1 mm when unloaded, the minimum compressive load to remove the clearance, is
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