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stion e ruphure 1 Me The A rectangular beam made using concrete with fe-42 MPe and...
A rectangular beam made using concrete of fc' = 6000 psi and steel with fy= 60...
A rectangular beam made using concrete of fc' = 6000 psi and steel with fy= 60 ksi. The beam has a width B=20 in and a total depth of 20 in with an effective depth d=17.5 in. The tensile steel consists of 4 #11 bars at the bottom side. a) Determine the maximum service load moment that can be resisted without stressing the concrete above 0.45fc' or the steel above 0.4fy. b) Calculate the nominal flexural moment capacity of the...
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-
1. A simply supported rectangular concrete beam has a clear span of 6m has a width...
1. A simply supported rectangular concrete beam has a clear span of 6m has a width of 400mm and has an effective depth of 625mm. The beam supports a total factored load of 168kN/m which includes the weight of the beam. Use fc’=28MPa, fy=414MPa. Use normal weight of concrete with 1.0. Determine approximately the total number of stirrups needed for the beam. 2. A rectangular beam reinforced for tension only has b=200mm and d=350mm. The tension steel area provided 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....
27.2 Much as in Exercise 27.1, a rectangular steel-reinforced concrete beam supports a uni- formly distributed...
27.2 Much as in Exercise 27.1, a rectangular steel-reinforced concrete beam supports a uni- formly distributed load of 4.5 kip/ft (including the beam weight) for a span of 28 ft. The breadth (b) of the beam is 16 in. The effective depth (d) of the beam section was rounded a compressive strength (f) of 4000 Ib/in2 and grade 60 steel for tensile and web reinforcement are specified. Six longitudinal tensile bars are to be used. Specify the gange number of...
A rectangular, tension-reinforced beam is to be designed for dead load of 500 Ib/ft plus self...
A rectangular, tension-reinforced beam is to be designed for dead load of 500 Ib/ft plus self weight and service live load of 1200 Ib/ft, with a 22 ft simple span. Material strengths will be fy 60 ksi and J 16 in. Calculate the required beam width and tensile steel requirement, using a reinforcement ratio of 0.60po.o0s. Use ACI load factors and strength reduction factors. The effective depth may be assumed to be 2.5 in. less than the total depth steel...
Problem 2 (25 points) A rectangular reinforced concrete beam has a width b-15 inches and effecti...
Problem 2 (25 points) A rectangular reinforced concrete beam has a width b-15 inches and effecti Concrete com ve depth d-24 inches. orcement fy- 60 ksi. imate load - 6 k/R pressive strength fe -4,000 psi and yield stress of steel reinf The beam is simply supported and subjected to a uniformly distributed ulti that includes the weight of the beam. Span is 28 feet. Assume interior exposure. s and show the proposed shear reinforcement Design the beam for shear...
15 points 9. A rectangular concrete beam of width b=24 in. is limited by architectural considerations...
15 points 9. A rectangular concrete beam of width b=24 in. is limited by architectural considerations to a maximum total depth h=16 in. It must carry a total factored load moment Mu 400 k-ft. Design the flexural reinforcement for this member, using compression steel if necessary. Allow 3-in, to the center of the bars from the compression or tension face of the beam. Material strengths are fy=60 ksi and fc=4 ksi. Select reinforcement to provide the needed areas, complete necessary...
Cracking Moment (Uncracked Concrete Stage) Problem 1) Problem 2.6 (page 55, McCormac and Brown, gth Ed.)...
Cracking Moment (Uncracked Concrete Stage) Problem 1) Problem 2.6 (page 55, McCormac and Brown, gth Ed.) Note: Modify the total depth of the beam from 24" to 26" and the depth of the steel rebars from 21" to 23". Transformed Area Method (Concrete Cracked- Elastic Stresses Stage) Problem 2) Problem 2.13 (page 56, McCormac and Brown, 8th Ed.) Note: Make the following changes: Change fe to 5 ksi use the values and dimensions shown in the figure below 1) 2)...
Problem 3 (5 points) A rectangular concrete beam of width b 24 in. is limited by architectural co...
Problem 3 (5 points) A rectangular concrete beam of width b 24 in. is limited by architectural considerations to a maximum total depth h - 17 in. It must carry a design moment demand, M 400 kips-ft. Design the flexural reinforcement for this member. Use compression steel if needed. The concrete material has compressive strength of fe- 4 ksi. The steel conforms to ASTM A615 Gr. 60. Select reinforcement to provide the needed areas and show a sketch of your...
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-
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....
27.2 Much as in Exercise 27.1, a rectangular steel-reinforced concrete beam supports a uni- formly distributed load of 4.5 kip/ft (including the beam weight) for a span of 28 ft. The breadth (b) of the beam is 16 in. The effective depth (d) of the beam section was rounded a compressive strength (f) of 4000 Ib/in2 and grade 60 steel for tensile and web reinforcement are specified. Six longitudinal tensile bars are to be used. Specify the gange number of...
A rectangular, tension-reinforced beam is to be designed for dead load of 500 Ib/ft plus self weight and service live load of 1200 Ib/ft, with a 22 ft simple span. Material strengths will be fy 60 ksi and J 16 in. Calculate the required beam width and tensile steel requirement, using a reinforcement ratio of 0.60po.o0s. Use ACI load factors and strength reduction factors. The effective depth may be assumed to be 2.5 in. less than the total depth steel...
Problem 2 (25 points) A rectangular reinforced concrete beam has a width b-15 inches and effecti Concrete com ve depth d-24 inches. orcement fy- 60 ksi. imate load - 6 k/R pressive strength fe -4,000 psi and yield stress of steel reinf The beam is simply supported and subjected to a uniformly distributed ulti that includes the weight of the beam. Span is 28 feet. Assume interior exposure. s and show the proposed shear reinforcement Design the beam for shear...
15 points 9. A rectangular concrete beam of width b=24 in. is limited by architectural considerations to a maximum total depth h=16 in. It must carry a total factored load moment Mu 400 k-ft. Design the flexural reinforcement for this member, using compression steel if necessary. Allow 3-in, to the center of the bars from the compression or tension face of the beam. Material strengths are fy=60 ksi and fc=4 ksi. Select reinforcement to provide the needed areas, complete necessary...
Cracking Moment (Uncracked Concrete Stage) Problem 1) Problem 2.6 (page 55, McCormac and Brown, gth Ed.) Note: Modify the total depth of the beam from 24" to 26" and the depth of the steel rebars from 21" to 23". Transformed Area Method (Concrete Cracked- Elastic Stresses Stage) Problem 2) Problem 2.13 (page 56, McCormac and Brown, 8th Ed.) Note: Make the following changes: Change fe to 5 ksi use the values and dimensions shown in the figure below 1) 2)...
Problem 3 (5 points) A rectangular concrete beam of width b 24 in. is limited by architectural considerations to a maximum total depth h - 17 in. It must carry a design moment demand, M 400 kips-ft. Design the flexural reinforcement for this member. Use compression steel if needed. The concrete material has compressive strength of fe- 4 ksi. The steel conforms to ASTM A615 Gr. 60. Select reinforcement to provide the needed areas and show a sketch of your...
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