The ratio of strain at the centroidal level of compression steel to strain at the centroidal level of tension steel for a rectangular section subjected to bending which has effective cover to compression steel as d' and neutral axis depth from topmost compression fiber as c is (according to TS500) :

5. The composite bar, composed of aluminum and steel bars, is firmly attached to rigid supports. An axial load P = 60 kips is applied as shown. Calculate the stress in the steel and aluminum bar. Aluminum A - 1.25 in? E = 10 x 10° psi Steel A = 2.0 in? E - 29 x 10° psi 15 in 10 in

A rectangular steel block is 75 mm in the x-direction, 50 mm in the y-direction and 100 mm in the z direction. The block is subjected to triaxial loading consisting of three uniformly forces as follows: 24 KN tension in the x-direction, 250 KN compression in the y-direction, and 240 KN tension in the z-direction. If u = 0.3 and E = 200 GPa, Determine the total resulting strain in the z- direction. Note: CN is the last 2 non zero digits of your cellphone number

SITUATION 21 A rectangular steel block is 300 mm in the x direction, 200 mm in the y direction, and 150mm in the z direction. The block is subjected to a triaxial loading consisting of three uniformly distributed forces as follows: 250KN tension in x direction, 320 kN compression in the y direction, and 180 kN tension in the z direction. For Steel, Poisson's Ratios = 0.30 and E=200 GPa. 4. Determine the total strain in x direction due to the triaxial loading 5. What single uniformly distributed load in the x direction that would produce the same deformation in the x direction as the original loading.