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2. (35 points) Initially assuming that the moment arm is 0.9d, determine the area of steel...
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...
Concrete design Problem #1: Design a rectangular beam section, i.e. select b, d, h, and the...
Concrete design
Problem #1: Design a rectangular beam section, i.e. select b, d, h, and the required area of tension steel, A, at mid-span for a 22 ft-span simply supported beam that support its own weight, a superimposed service dead load of 1.25 kip/ft, and a uniform service live load of 2 kip/ft. Start by assuming the self-weight of the beam W-410 lbs/ft, b-0.7d, and use fc4500 psi and fy-60, 000 psi Note: Provide a detailed sketch for the final...
Problem 2 Determine the nominal moment capacity for the reinforced concrete beam shown. The beam ...
Problem 2 Determine the nominal moment capacity for the reinforced concrete beam shown. The beam cross section has a width 10 inch and a depth 20 inch. The beam is reinforced with a tension steel reinforcement of 3#8 with an area of steel # 2.37 inch Assume grade 60 steel with a yield strss, Fy 60 ksi d 20 3#8 2.37/ 2 As B-10"
Problem 2 Determine the nominal moment capacity for the reinforced concrete beam shown. The beam cross...
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)...
10. A beam cross-section is limited to the size shown below. Determine the required area of...
10. A beam cross-section is limited to the size shown below. Determine the required area of reinforcement for service load moments Mp-430 ft-kip and M 175 ft-ki ksi. Note that the beam self weight is already included in the dead load moment. Assume that c 0.6c for the singly-reinforced part of the section (for your initial guess). Hint: first calculate the nominal moment resisted by the concrete section without compression steel. Check the strength only p.f -4,000 psi and f,-60...
Reinforced concrete 2 For the section in Problem i) determine the area of steel such that...
Reinforced concrete
2 For the section in Problem i) determine the area of steel such that the depth of the equivalent rectangular concrete stress distribution (block) is 4", and ii) determine the nominal moment strength and capacity if the steel area is 25% higher than balanced steel condition. Assume d 23.5", f.-3,000 psi, and f 60,000 psi. Hole 5-88 8 16
Problem 2 Determine the design moment capacity (фМ.) for the beam cross section below 20° fy-80,000...
Problem 2 Determine the design moment capacity (фМ.) for the beam cross section below 20° fy-80,000 psi f 6,000 psi 24" 27 6 # 11 bars 3"
. Deisgn a reinforced concrete cross-section with unknown dimensions Problem 1 Design the steel reinforcement for...
. Deisgn a reinforced concrete cross-section with unknown dimensions Problem 1 Design the steel reinforcement for the beam shown in Figure 1 that supports its own self-weight, a uninformly distributed dead load, a uniformly distributed live load, and a live point load located at midspan. In your solution, you should select the area of reinforcement, the number and size of reinforcing bars, and the section depth in order to receive full credit. Assume J 5,000 psi, fy 60,000 psi. 16...
12 in 4 in 18 10 ft 10 ft 10ft 10ft Problem #3 Determine the required...
12 in 4 in 18 10 ft 10 ft 10ft 10ft Problem #3 Determine the required area of steel for a rectangular beam sections with b-10 in andh - 22 in to resist a factored design moment, Mu 260 kip-ft. If compression steel is needed, assume it is placed at a concrete cover of 2.5 in. use fc 4000 psi and fy- 60 ksi. Note: Provide a detailed sketch for the final section with strain and force diagrams
Please answer the question. The beam should be 35 ft. long for both pictures. (disregard the...
Please answer the question. The beam should be 35 ft. long for
both pictures. (disregard the 25 ft. length. it should be 35 ft.)
thank you
Reinforced Concrete
6-18%20(1).pdf Due: 06 March 2018 The beam shown in the figure is subjected to a uniformly distributed dead load (without including self-weight) equal to 0.5 kip/ft, and a uniformly distributed live load of 1.3 kip/ft. You may initially estimate the beam weight to be about 0.3 kip/ft, but you must verify and...
Concrete design
Problem #1: Design a rectangular beam section, i.e. select b, d, h, and the required area of tension steel, A, at mid-span for a 22 ft-span simply supported beam that support its own weight, a superimposed service dead load of 1.25 kip/ft, and a uniform service live load of 2 kip/ft. Start by assuming the self-weight of the beam W-410 lbs/ft, b-0.7d, and use fc4500 psi and fy-60, 000 psi Note: Provide a detailed sketch for the final...
Problem 2 Determine the nominal moment capacity for the reinforced concrete beam shown. The beam cross section has a width 10 inch and a depth 20 inch. The beam is reinforced with a tension steel reinforcement of 3#8 with an area of steel # 2.37 inch Assume grade 60 steel with a yield strss, Fy 60 ksi d 20 3#8 2.37/ 2 As B-10"
Problem 2 Determine the nominal moment capacity for the reinforced concrete beam shown. The beam cross...
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)...
10. A beam cross-section is limited to the size shown below. Determine the required area of reinforcement for service load moments Mp-430 ft-kip and M 175 ft-ki ksi. Note that the beam self weight is already included in the dead load moment. Assume that c 0.6c for the singly-reinforced part of the section (for your initial guess). Hint: first calculate the nominal moment resisted by the concrete section without compression steel. Check the strength only p.f -4,000 psi and f,-60...
Reinforced concrete
2 For the section in Problem i) determine the area of steel such that the depth of the equivalent rectangular concrete stress distribution (block) is 4", and ii) determine the nominal moment strength and capacity if the steel area is 25% higher than balanced steel condition. Assume d 23.5", f.-3,000 psi, and f 60,000 psi. Hole 5-88 8 16
Problem 2 Determine the design moment capacity (фМ.) for the beam cross section below 20° fy-80,000 psi f 6,000 psi 24" 27 6 # 11 bars 3"
. Deisgn a reinforced concrete cross-section with unknown dimensions Problem 1 Design the steel reinforcement for the beam shown in Figure 1 that supports its own self-weight, a uninformly distributed dead load, a uniformly distributed live load, and a live point load located at midspan. In your solution, you should select the area of reinforcement, the number and size of reinforcing bars, and the section depth in order to receive full credit. Assume J 5,000 psi, fy 60,000 psi. 16...
12 in 4 in 18 10 ft 10 ft 10ft 10ft Problem #3 Determine the required area of steel for a rectangular beam sections with b-10 in andh - 22 in to resist a factored design moment, Mu 260 kip-ft. If compression steel is needed, assume it is placed at a concrete cover of 2.5 in. use fc 4000 psi and fy- 60 ksi. Note: Provide a detailed sketch for the final section with strain and force diagrams
Please answer the question. The beam should be 35 ft. long for
both pictures. (disregard the 25 ft. length. it should be 35 ft.)
thank you
Reinforced Concrete
6-18%20(1).pdf Due: 06 March 2018 The beam shown in the figure is subjected to a uniformly distributed dead load (without including self-weight) equal to 0.5 kip/ft, and a uniformly distributed live load of 1.3 kip/ft. You may initially estimate the beam weight to be about 0.3 kip/ft, but you must verify and...
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