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131 The concrete beam is reinforced with three 20-mm- diameter steel rods. Assume that the concrete...
The concrete [E = 29 GPa] pier shown in the figure is reinforced by four steel...
The concrete [E = 29 GPa] pier shown in the figure is
reinforced by four steel [E = 200 GPa] reinforcing rods,
each having a diameter of 19 mm. Assume P = 680 kN,
L = 2.10 m, and a = 275 mm. If the pier is
subjected to an axial load of 680 kN, determine
(a) the normal stress (positive if tensile and negative if
compressive) in the concrete and in the steel reinforcing
rods.
(b) the deflection of...
Problem 2 A reinforced concrete beam (see fig.) is acted on by a positive bending moment...
Problem 2 A reinforced concrete beam (see fig.) is acted on by a positive bending moment of M - 160 kNm. Steel reinforcement consists of 4 bars of 28-mm diameter. The modulus of elasticity for the concrete is E = 25 GPa while that of the steel is E, = 200 GPa. (a) Find the maximum stresses in steel and concrete. (b) If allowable stresses for concrete and steel are = 9.2 MPa and 0 -135 MPa, respectively, what is...
03(a) A reinforced concrete beam is acted on by a positive bending moment. reinforcement consists of 4 bars of 28 mm diameter. The modulus of elasticity is E 25 GPa for the concrete and E-200 G...
03(a) A reinforced concrete beam is acted on by a positive bending moment. reinforcement consists of 4 bars of 28 mm diameter. The modulus of elasticity is E 25 GPa for the concrete and E-200 GPa for the steel. The allowable stresses for the concrete and steel are ơ.-9.2 MPa and ơ.-135 MPa, respectively. Determine the maximum permissible positive bending moment. (10 marks) 625 mm 4 bars 28 mm -300 mm Figure Q3(a) 03(b) A simply supported beam that is...
2. A rectangular beam, 400 x 600 mm gross dimension, is cast using a concrete strength...
2. A rectangular beam, 400 x 600 mm gross dimension, is cast using a concrete strength of fc 30 MPa, reinforced with 5-25 mm diameter steel bar at the effective depth of 500 mm. If is subjected to a moment, M 130 kN-m. Determine the following: Magnitude of the bending moment that cracks the singly-reinforced beam section. (10 pts) b. For the computed cracking moment, determine the maximum compressive stress in the concrete and the stress in the tension steel....
Part A The concrete column is reinforced using four steel reinforcing rods, each having a diameter...
Part A The concrete column is reinforced using four steel reinforcing rods, each having a diameter of 18 mm. Est = 200 GPa, Ec = 25 GPa. (Figure 1) Determine the stress in the steel if the column is subjected to an axial load of P = 900 kN. Express your answer to three significant figures and include the appropriate units. ? I MÅ ot = Value R o a Units Ost = Value Units Figure < 1 of 1...
The low strength concrete floor slab is integrated with a wide- flange A-36 steel beam using...
The low strength concrete floor slab is integrated with a wide- flange A-36 steel beam using shear studs (not shown) to form the composite beam. (Figure 1) Part A If the allowable bending stress for the concrete is (Gallow)con = 10 MPa and allowable bending stress for steel is allow)st = 165 MPa, determine the maximum allowable internal moment M that can be applied to the beam. Express your answer with the appropriate units. Figure 1 of 1 H HÅ...
Problem 2. A concrete beam is reinforced by three steel rebars placed as shown. The modulus...
Problem 2. A concrete beam is reinforced by three steel rebars placed as shown. The modulus of elasticity is 3x106 psi for concrete and 29x106 psi for steel. Find the tensile stress in rebars and maximum compressive stress in concrete under an external bending moment of (a) 80 kip.in and (b) 240 kip.in. Given the compressive strength of concrete fe' = 3 ksi and yield stress of rebars fy = 60 ksi, discuss the state of crack in concrete and...
A 200 mm x 300 The of each mm square reinforced concrete column consists of PCC and steel rebar rebar are oriented p...
A 200 mm x 300 The of each mm square reinforced concrete column consists of PCC and steel rebar rebar are oriented parallel to the longitudinal dimension of the column. The properties component are provided in the table below PCC (Matrix Phase 95% 20 GPa 24 Mg'm 20 MPa Material Steel Rebar 5% 200 GPa 7.8 Mg/m (Dis Phase % of Composite(by vol.) Modulus of Elasticity Density Failure Stress 250 MPa Determine the following: (a) (3%) Modulus of elasticity of...
1. Reinforced Rectangular Concrete Beam The reinforced concrete beam shown is subjected to a bending moment...
1. Reinforced Rectangular Concrete Beam The reinforced concrete beam shown is subjected to a bending moment of 200 kip ft. Knowing that the modulus of elasticity for the concrete and the steel are respectively Ec= 3.75 X 10 psi and Es = 30 x 10 psi, determine the tensile stress in [ksh] that develops in the steel bars. 20 in 1 in diameter 72.5 in 12 in-
The built-up beam is made of steel as shown in Figure 1. Knowing that modulus of...
The built-up beam is made of steel as shown in Figure 1. Knowing that modulus of elasticity for the steel is E = 200 GPa 150 mm 20 mm 150 mm 150 mm 10 mm M '10 mm 300 mm А Figure 1 (1) If the allowable tensile and compressive stress for the beam are allow tension = 140 MPa and o = 210 MPa. allow compression respectively, determine the maximum allowable internal moment M that can be applied Determine...
The concrete [E = 29 GPa] pier shown in the figure is
reinforced by four steel [E = 200 GPa] reinforcing rods,
each having a diameter of 19 mm. Assume P = 680 kN,
L = 2.10 m, and a = 275 mm. If the pier is
subjected to an axial load of 680 kN, determine
(a) the normal stress (positive if tensile and negative if
compressive) in the concrete and in the steel reinforcing
rods.
(b) the deflection of...
Problem 2 A reinforced concrete beam (see fig.) is acted on by a positive bending moment of M - 160 kNm. Steel reinforcement consists of 4 bars of 28-mm diameter. The modulus of elasticity for the concrete is E = 25 GPa while that of the steel is E, = 200 GPa. (a) Find the maximum stresses in steel and concrete. (b) If allowable stresses for concrete and steel are = 9.2 MPa and 0 -135 MPa, respectively, what is...
03(a) A reinforced concrete beam is acted on by a positive bending moment. reinforcement consists of 4 bars of 28 mm diameter. The modulus of elasticity is E 25 GPa for the concrete and E-200 GPa for the steel. The allowable stresses for the concrete and steel are ơ.-9.2 MPa and ơ.-135 MPa, respectively. Determine the maximum permissible positive bending moment. (10 marks) 625 mm 4 bars 28 mm -300 mm Figure Q3(a) 03(b) A simply supported beam that is...
2. A rectangular beam, 400 x 600 mm gross dimension, is cast using a concrete strength of fc 30 MPa, reinforced with 5-25 mm diameter steel bar at the effective depth of 500 mm. If is subjected to a moment, M 130 kN-m. Determine the following: Magnitude of the bending moment that cracks the singly-reinforced beam section. (10 pts) b. For the computed cracking moment, determine the maximum compressive stress in the concrete and the stress in the tension steel....
Part A The concrete column is reinforced using four steel reinforcing rods, each having a diameter of 18 mm. Est = 200 GPa, Ec = 25 GPa. (Figure 1) Determine the stress in the steel if the column is subjected to an axial load of P = 900 kN. Express your answer to three significant figures and include the appropriate units. ? I MÅ ot = Value R o a Units Ost = Value Units Figure < 1 of 1...
The low strength concrete floor slab is integrated with a wide- flange A-36 steel beam using shear studs (not shown) to form the composite beam. (Figure 1) Part A If the allowable bending stress for the concrete is (Gallow)con = 10 MPa and allowable bending stress for steel is allow)st = 165 MPa, determine the maximum allowable internal moment M that can be applied to the beam. Express your answer with the appropriate units. Figure 1 of 1 H HÅ...
Problem 2. A concrete beam is reinforced by three steel rebars placed as shown. The modulus of elasticity is 3x106 psi for concrete and 29x106 psi for steel. Find the tensile stress in rebars and maximum compressive stress in concrete under an external bending moment of (a) 80 kip.in and (b) 240 kip.in. Given the compressive strength of concrete fe' = 3 ksi and yield stress of rebars fy = 60 ksi, discuss the state of crack in concrete and...
A 200 mm x 300 The of each mm square reinforced concrete column consists of PCC and steel rebar rebar are oriented parallel to the longitudinal dimension of the column. The properties component are provided in the table below PCC (Matrix Phase 95% 20 GPa 24 Mg'm 20 MPa Material Steel Rebar 5% 200 GPa 7.8 Mg/m (Dis Phase % of Composite(by vol.) Modulus of Elasticity Density Failure Stress 250 MPa Determine the following: (a) (3%) Modulus of elasticity of...
1. Reinforced Rectangular Concrete Beam The reinforced concrete beam shown is subjected to a bending moment of 200 kip ft. Knowing that the modulus of elasticity for the concrete and the steel are respectively Ec= 3.75 X 10 psi and Es = 30 x 10 psi, determine the tensile stress in [ksh] that develops in the steel bars. 20 in 1 in diameter 72.5 in 12 in-
The built-up beam is made of steel as shown in Figure 1. Knowing that modulus of elasticity for the steel is E = 200 GPa 150 mm 20 mm 150 mm 150 mm 10 mm M '10 mm 300 mm А Figure 1 (1) If the allowable tensile and compressive stress for the beam are allow tension = 140 MPa and o = 210 MPa. allow compression respectively, determine the maximum allowable internal moment M that can be applied Determine...
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