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In the following reinforced concrete beam, bending moment is
150kip-ft and Ec = 3.75x10^6psi Es =...
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-
326 СНАРТER 6 BENDING EXAMPLE 6.18 The reinforced concrete beam has the cross-sectional area shown in Fig. 6-39a. If it...
326 СНАРТER 6 BENDING EXAMPLE 6.18 The reinforced concrete beam has the cross-sectional area shown in Fig. 6-39a. If it is subjected to a bending moment of M = 60 kip ft determine the normal stress in each of the steel reinforcing rods and the maximum normal stress in the concrete. Take Est = 29(10) ksi and Econc = 3.6(103) ksi SOLUTION Since the beam is made of concrete, in the following analysis we will neglect its strength in supporting...
The concrete post (Ec 3.6 x 10 psi and ac 5.5 x 10/F) is reinforced with...
The concrete post (Ec 3.6 x 10 psi and ac 5.5 x 10/F) is reinforced with six steel bars, each of-in. diameter (Es= 29 x 10 psi and as 6.5 x 10/F). Determine the normal stresses induced in the steel and in the concrete by a temperature rise of 60°F. 6 ft 10 in 10 in The normal stress in the steel is ksi. psi The normal stress in the concrete is
Reinforced concrete Problem #1 (40 points): A beam with x-section shown in the figure is made...
Reinforced concrete
Problem #1 (40 points): A beam with x-section shown in the figure is made out of concrete with compressive strength fc = 4000 psi and the steel reinfrocemnt is of Grade 60 (fy 60000psi). Determine 1 The maximum compressive stress in the concrete f and the tensils stress in the steel , if the section is subjected to a bending moment of 130 ft-k (assume n 8) N.A._ 23" 23-х 4 #10 (5.06 in. 3" 18"
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...
Problem 2 Design a rectangular reinforced concrete beam to resist a total design moment Mu of...
Problem 2 Design a rectangular reinforced concrete beam to resist a total design moment Mu of 765 ft-kips (this includes moment due to the weight of the beam). The beam size is limited to 15 in. maximum width and 30 in. maximum overall depth. Use fc,-3000 psi and/S-60,000 psi. If compression steel is required, make d'-2.5 in.
The concrete post (Ec = 3.6 × 106 psi and αc = 5.5 × 10-6/°F) is...
The concrete post (Ec = 3.6 × 106
psi and αc = 5.5 × 10-6/°F) is
reinforced with six steel bars, each of 78-in.78-in. diameter
(Es = 29 × 106 psi and
αs = 6.5 × 10-6/°F). Determine the
normal stresses induced in the steel and in the concrete by a
temperature rise of 75°F.
The normal stress in the steel is _____ ksi.
The normal stress in the concrete is _____psi
6 ft 10 in. 10 in.
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....
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...
solve urgent please correct more more appriciate Q4) How much is stress in this beam at...
solve urgent please correct more more appriciate
Q4) How much is stress in this beam at the followings: a) Steel rebar(Only one of the rebars) b) Max. Stress in concrete Bending moment in this concrete beam is 160 k Diameter of each rebar 1 inch 20 in E 4x 10 psi E-30x10 psi 3in (concrete cover) 10 in
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-
326 СНАРТER 6 BENDING EXAMPLE 6.18 The reinforced concrete beam has the cross-sectional area shown in Fig. 6-39a. If it is subjected to a bending moment of M = 60 kip ft determine the normal stress in each of the steel reinforcing rods and the maximum normal stress in the concrete. Take Est = 29(10) ksi and Econc = 3.6(103) ksi SOLUTION Since the beam is made of concrete, in the following analysis we will neglect its strength in supporting...
The concrete post (Ec 3.6 x 10 psi and ac 5.5 x 10/F) is reinforced with six steel bars, each of-in. diameter (Es= 29 x 10 psi and as 6.5 x 10/F). Determine the normal stresses induced in the steel and in the concrete by a temperature rise of 60°F. 6 ft 10 in 10 in The normal stress in the steel is ksi. psi The normal stress in the concrete is
Reinforced concrete
Problem #1 (40 points): A beam with x-section shown in the figure is made out of concrete with compressive strength fc = 4000 psi and the steel reinfrocemnt is of Grade 60 (fy 60000psi). Determine 1 The maximum compressive stress in the concrete f and the tensils stress in the steel , if the section is subjected to a bending moment of 130 ft-k (assume n 8) N.A._ 23" 23-х 4 #10 (5.06 in. 3" 18"
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...
Problem 2 Design a rectangular reinforced concrete beam to resist a total design moment Mu of 765 ft-kips (this includes moment due to the weight of the beam). The beam size is limited to 15 in. maximum width and 30 in. maximum overall depth. Use fc,-3000 psi and/S-60,000 psi. If compression steel is required, make d'-2.5 in.
The concrete post (Ec = 3.6 × 106
psi and αc = 5.5 × 10-6/°F) is
reinforced with six steel bars, each of 78-in.78-in. diameter
(Es = 29 × 106 psi and
αs = 6.5 × 10-6/°F). Determine the
normal stresses induced in the steel and in the concrete by a
temperature rise of 75°F.
The normal stress in the steel is _____ ksi.
The normal stress in the concrete is _____psi
6 ft 10 in. 10 in.
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....
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...
solve urgent please correct more more appriciate
Q4) How much is stress in this beam at the followings: a) Steel rebar(Only one of the rebars) b) Max. Stress in concrete Bending moment in this concrete beam is 160 k Diameter of each rebar 1 inch 20 in E 4x 10 psi E-30x10 psi 3in (concrete cover) 10 in
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