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Name: Total__/25 Follow ACI 318-19 to answer the following questions: Problem #1 (6 points) Determine the...
Design a reinforced concrete beam that has a rectangular cross section with a width b =...
Design a reinforced concrete beam that has a rectangular cross section with a width b = 24 in. The depth h is limited by architectural reasons to 16 in. It has to carry a factored moment Mu = 360 kip- ft. including the self-weight. The design should satisfy ACI 318 for tension controlled members. Use Grade 60 steel and a specified concrete compressive strength = 4,000 psi. Determine the flexural reinforcement for the beam, and use compression steel if needed....
Problem 1. (40 pts) Here is a design for a beam as shown in Figs Check...
Problem 1. (40 pts) Here is a design for a beam as shown in Figs Check if this section can resist the following loading conditions in the beam according to ACI-318. Use fc -4000 psi and fy - 60,000 psi. Assume that the clear cover is 1.5" (typical) for all and the vertical spacing between #8 bars is 1 inch. Both End (L Center (L2) #8 bars #8 Stirrup #3@ 8" 8#8 bars 20 in Stirrup: 6# 8 bars Pu=15...
HELP! Problem 6 Development Length (30 pts.) The required reinforcement steel area "As" for the lightweight reinforced concrete beam of figure 3 is 2.88 si. The No. 8 top bars are uncoated. C...
HELP!
Problem 6 Development Length (30 pts.) The required reinforcement steel area "As" for the lightweight reinforced concrete beam of figure 3 is 2.88 si. The No. 8 top bars are uncoated. Compute the development length (d), İffy 60,000 psi and fc 3.500 psi. a) Use the simplified equation Table 8-1) b) Use the ACI Equation 25.4.2.3a (Equation 8-10) c) Use the ACI Equation 25.4.2.3a with Ktr 0 (Equation 8-10) 18 3" 3@4 123 3" 448 bars 3.14 in2 26...
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) The strain in the steel at failure is most nearly: A. 0.002 B. 0.005 C....
1) The strain in the steel at failure is most
nearly:
A. 0.002
B. 0.005
C. 0.018
D. 0.023
E. 0.003
2) Find the development length of the # 8 bar in tension.
A 12 ft cantilever beam 21 in. wide x 30 in, deep is reinforced by four # 8 bars as shown. Given fc 4000 psi and fy 60,000 psi. 3 in. is the cover to the center of the # 8 bar 21" #8 bars are spaced...
1. A rectangular beam with b 16 in., d-17 in., and h 20 in. has a clear span of 24 ft. as shown b...
1. A rectangular beam with b 16 in., d-17 in., and h 20 in. has a clear span of 24 ft. as shown below. The beam has 1 ft. of bearing at each end, so for analysis purposes it is treated as a 25 ft. simple span (to center of bearing at each end). The beam supports an unfactored concentrated live load of P-65 kips. The beam is reinforced with 6-#10 longitudinal bars and #4 stirrups. Material strengths are fc-4,000,...
. 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...
Reinforced Concrete Design Please answer it with good write . Problem 1: The reinforced concrete cantilever beam shown is subjected to a concentrated load P- 2 kips, at its free end. Determine th...
Reinforced Concrete Design
Please answer it with good write .
Problem 1: The reinforced concrete cantilever beam shown is subjected to a concentrated load P- 2 kips, at its free end. Determine the development length of the shown bars using the detailed and simplified methods for the following cases: a) straight bars b) 90 hooks c )180, hooks The column width is 22 inches. Concrete cover is measured from the concrete surface to the center of the reinforcement. fc 4...
Please answer in numerical order. 1. Use ρ-p0.004 and choose (you decide) the number (3 to...
Please answer in numerical order.
1. Use ρ-p0.004 and choose (you decide) the number (3 to 5) and size of steel bars from the attached table. Then proceed to determine (a) the size of the cross-sectional area, (b) the moment capacity of the RC section that you design, and (c) show where is the neutral axis on the diagram (or sketch a new one). 2.5" Given: fe 3,000 psi, fy -60,000 psi Concrete cracking strain 0.003 Initial yielding strain of...
1. For the cross section and loading shown below. [50 points] 10" fc-5500 psi 60,000 psi...
1. For the cross section and loading shown below. [50 points] 10" fc-5500 psi 60,000 psi Concrete unit weight 150 pcf 18.5, P,-15 kips w 1,500 lb/ft 32" 25" 37 (12) #8 15" a. Calculate the gross moment of inertia, Ig, and the location of the centroid, ybar (from the bottom) Neglect the steel when calculating Ig. [10 points] b. What is the cracking moment, Mcr? [5 points] c. Calculate the cracked transformed moment of inertia, Icr. [10 points] d....
Problem 1. (40 pts) Here is a design for a beam as shown in Figs Check if this section can resist the following loading conditions in the beam according to ACI-318. Use fc -4000 psi and fy - 60,000 psi. Assume that the clear cover is 1.5" (typical) for all and the vertical spacing between #8 bars is 1 inch. Both End (L Center (L2) #8 bars #8 Stirrup #3@ 8" 8#8 bars 20 in Stirrup: 6# 8 bars Pu=15...
HELP!
Problem 6 Development Length (30 pts.) The required reinforcement steel area "As" for the lightweight reinforced concrete beam of figure 3 is 2.88 si. The No. 8 top bars are uncoated. Compute the development length (d), İffy 60,000 psi and fc 3.500 psi. a) Use the simplified equation Table 8-1) b) Use the ACI Equation 25.4.2.3a (Equation 8-10) c) Use the ACI Equation 25.4.2.3a with Ktr 0 (Equation 8-10) 18 3" 3@4 123 3" 448 bars 3.14 in2 26...
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) The strain in the steel at failure is most
nearly:
A. 0.002
B. 0.005
C. 0.018
D. 0.023
E. 0.003
2) Find the development length of the # 8 bar in tension.
A 12 ft cantilever beam 21 in. wide x 30 in, deep is reinforced by four # 8 bars as shown. Given fc 4000 psi and fy 60,000 psi. 3 in. is the cover to the center of the # 8 bar 21" #8 bars are spaced...
1. A rectangular beam with b 16 in., d-17 in., and h 20 in. has a clear span of 24 ft. as shown below. The beam has 1 ft. of bearing at each end, so for analysis purposes it is treated as a 25 ft. simple span (to center of bearing at each end). The beam supports an unfactored concentrated live load of P-65 kips. The beam is reinforced with 6-#10 longitudinal bars and #4 stirrups. Material strengths are fc-4,000,...
. 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...
Reinforced Concrete Design
Please answer it with good write .
Problem 1: The reinforced concrete cantilever beam shown is subjected to a concentrated load P- 2 kips, at its free end. Determine the development length of the shown bars using the detailed and simplified methods for the following cases: a) straight bars b) 90 hooks c )180, hooks The column width is 22 inches. Concrete cover is measured from the concrete surface to the center of the reinforcement. fc 4...
Please answer in numerical order.
1. Use ρ-p0.004 and choose (you decide) the number (3 to 5) and size of steel bars from the attached table. Then proceed to determine (a) the size of the cross-sectional area, (b) the moment capacity of the RC section that you design, and (c) show where is the neutral axis on the diagram (or sketch a new one). 2.5" Given: fe 3,000 psi, fy -60,000 psi Concrete cracking strain 0.003 Initial yielding strain of...
1. For the cross section and loading shown below. [50 points] 10" fc-5500 psi 60,000 psi Concrete unit weight 150 pcf 18.5, P,-15 kips w 1,500 lb/ft 32" 25" 37 (12) #8 15" a. Calculate the gross moment of inertia, Ig, and the location of the centroid, ybar (from the bottom) Neglect the steel when calculating Ig. [10 points] b. What is the cracking moment, Mcr? [5 points] c. Calculate the cracked transformed moment of inertia, Icr. [10 points] d....
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