A concrete beam is reinforced by three steel rods placed as shown. The modulus of elasticity is 3 × 106 psi for the concrete and 29 × 106 psi for the steel. Using an allowable stress of 1342 psi for the concrete and 20 ksi for the steel, determine the largest allowable positive bending moment in the beam. 16 in. -in. diameter 8 in. 2 in. The largest allowable positive bending moment in the beam is kip-ft.

Prob.5: A rectangular reinforced concrete beam has dimensions b = 300 mm, d = 530 mm and h = 600 mm, and is reinforced with 3 Ø32 mm bars. Materials strength are fe = 28 MPa, fy= 414 MPa. a) Find the moment that will produce the first cracking at the bottom surface of the beam basing your calculations on Ig. b) Determine the maximum stress in the steel and in the concrete under this Design of Reinforced Concrete Structures moment.

A RECTANGULAR ALUMINUM BLOCK IS 110mm LONG IN THE X DIRECTION, 70mm WIDE IN THE Y DIRECTION AND 85mm THICK IN THE Z DIRECTION. IT IS SUBJECTED TO A TRIAXIAL LOADING CONSISTING OF A UNIFORMLY DISTRIBUTED FORCE OF 210 KN (COMPRESSION), 170 KN (TENSION) AND 230 KN (COMPRESSION) IN THE X, Y AND Z DIRECTIONS RESPECTIVELY. IF THE POISSON'S RATIO = 1/4 & E= 72 GPa, DETERMINE THE STRAINS IN THE X, Y AND Z DIRECTIONS. ALSO DETERMINE A SINGLE DISTRIBUTED FORCE IN THE Y DIRECTION THE WOULD PRODUCE THE SAME Z DEFORMATION AS THE ORIGINAL.

Shown is a composite plate joined together by rivets. The components consist of two tension bar plates that is ¾ X 4 inch and riveted together by two splice plates which is 0.8 X 6 inch. Each rivet has a diameter of 25.4 mm. Considering that the allowable stress for the tension bar plates and splice plates is σ=20.0 ksi, the allowable shear stress for the rivets is σ=25.0 ksi and the allowable bearing stress on the rivets and splice plates is σ=25.0 ksi. What will be the maximum permissible load P such that none of the allowable stresses will be exceeded?

Shown is a composite plate joined together by rivets. The components consist of two tension bar plates that is ¾ X 4 inch and riveted together by two splice plates which is 0.8 X 6 inch. Each rivet has a diameter of 25.4 mm. Considering that the allowable stress for the tension bar plates and splice plates is σ=20.0 ksi, the allowable shear stress for the rivets is σ=25.0 ksi and the allowable bearing stress on the rivets and splice plates is σ=25.0 ksi. What will be the maximum permissible load P such that none of the allowable stresses will be exceeded?

STRAIN

Please solve only part 1 also draw free body diagram

a concrete beam simply supported at both ends 300 × 600mm it stressed by 3 cables of 700 mm each ps=1200 n/mm2 e=100mm loss of stress 30% beam is carrying an imposes load of 20 kn/m ec=30, 000 n/mm2 es=2×10 n/mm2 calculate maximum deflection of the beam neglect the impact of creep and shrinkage span of beam=8m solution

The reinforced concrete beam shown is subjected to a positive bend-ing moment of 175 kN·m. Knowing that the modulus of elasticity is 25 GPa for the concrete and 200 GPa for the steel, determine (a) the stress in the steel, (b) the maximum stress in the concrete.

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