For the following questions answer them individually
A steel plate d x b is sandwiched rigidly between two timber joists each D x B/2 in section. The moment of resistance of the beam for the same maximum permissible stress Ď in timber and steel will be: Where Youngâs modulus of steel is m times that of the timber
The radius of gyration of a section of area A and least moment of inertia I about the centroidal axis is
If D and d are external and internal diameters of a circular shaft respectively, its polar moment of inertia is
If Q is load factor, S is shape factor and F is factor of safety in elastic design, the following:
A two hinged parabolic arch of span l and rise h carries a load varying from zero at the left end to w per unit run at the right end. The horizontal thrust is
The maximum Bending Moment due to an isolated load in a three-hinged parabolic arch (span l, rise h) having one of its hinges at the crown, occurs on either side of the crown at a distance