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Problem 1: The column has 6 #9 bars with 3 bars on each side separated 14"...
3. The column shown below is subjected to axial load and bending moment causing bending about...
3. The column shown below is subjected to axial load and bending moment causing bending about an axis parallel to that of the rows of bars. What moment would cause the column to fail if the axial load applied simultaneously was 500 kips? Material strengths are fc' = 6000 psi and fy = 60,000 psi. 20" As: 8.0 in2 8.0 in2 Figure: Problem 3
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...
The frame below has wind load and dead as shown. Use w(Dead) = 6 kip/ft and...
The frame below has wind load and dead as shown. Use w(Dead) = 6
kip/ft and w(Live) = 3 kip/ft, L = 30 ft and H = 15 ft. The beams
and columns have modulus of elasticity E of 29000 ksi and moment of
inertias I(beam) = 2000 in4 and I(column) = 800
in4. Similarly they have cross-sectional areas A(beam) =
20 in2 and A(column) = 25 in2. Consider that
the wind can act in both horizontal directions.
Determine:
The...
Please try to answer all the parts of the question correctly and with the best of your availability to get a thumbs up. Thanks. Problem 3 : Interaction Diagrams -A short column is subje cted to a fac...
Please try to answer all the parts of the question correctly and
with the best of your availability to get a thumbs up. Thanks.
Problem 3 : Interaction Diagrams -A short column is subje cted to a factored axial load of Pu-850 kips. The concrete has a compressive strength of 4 ksi and grade 60 steel is used. Use the interaction diagrams (where appropriate to answer the following): A. If the column is designed as a tied column, determine the...
Problem 9 (3 pts). A spiral circular column is subjected to an axial load of P- 850 kips Material properties are fe = 4 ksi and fy-60 ks. Concrete cover is 1.5 in. if the column has an outside di...
Problem 9 (3 pts). A spiral circular column is subjected to an axial load of P- 850 kips Material properties are fe = 4 ksi and fy-60 ks. Concrete cover is 1.5 in. if the column has an outside diameter of 20 in. and the diameter of spiral wire is #3 bar,the maximum spiral pitch is most nearly 1. a. 1.8 in. b. 2.3 in. c. 2.8 in. d. 3.3 in.
Problem 9 (3 pts). A spiral circular column is...
11. (10 points) Check to determine if a W14x159 used as a column can support an...
11. (10 points) Check to determine if a W14x159 used as a column can support an axial dead load of 250k and an axial live load of 1000k if the length of the column is 14 feet and the value of G for Joint A has been determined to be 0.8. Use the LRFD Design Method and assume that the columns are bending about their y axis as shown. (Hint: The answer is in the Manual) W14x159 Fixed Base at...
Problem ll The figure below shows a cantilever beam with b = 12-in containing 3-No 7 bars that are anchored in the column by standard 90° hooks. fc 4500 psi (normal weight) and fy- 60,000 psi. If the...
Problem ll The figure below shows a cantilever beam with b = 12-in containing 3-No 7 bars that are anchored in the column by standard 90° hooks. fc 4500 psi (normal weight) and fy- 60,000 psi. If the steel is stressed to fy at the face of the column, can these bars: a) be anchored by hooks into the column? The clear cover to the side of the hook is 2 34 -in. The clear cover to the bar extension...
1. The number of equilibrium equations available in 2D is 6. 2. The Method of Sections...
1. The number of equilibrium equations available in 2D is 6. 2. The Method of Sections results in a 2D rigid body equilibrium problem. 3. Indeterminate trusses can only be solved by Method of Joints, not Sections. 4. By definition, truss members must be pin connected & carry only axial load. 5. Shear Force is the first derivative of Bending Moment. 6. Distributed Load is the integral of Shear Force. 7. The maximum Bending Moment is always at the center...
Qu estion 1: (25 points) The beam shown below has a span of 13 ft and is reinforced with bars tha...
Qu estion 1: (25 points) The beam shown below has a span of 13 ft and is reinforced with bars that ext end 8 inch beyond the face of the support. The centerline of the longitudinal bars nearest the side ace (i.e., the "outside bars") is 3.5 inch from, the side face as shown below. The concrete has a compressive strength of 3.0 ksi, and the reinforcement is Grade 60. The beam is loaded with a distributed live load (w)...
20.0 30.0" 14 WL 2.5 k/ft Wo 1 k/ft 3.0", typ 3-#10 bars #3 stirrups 34,0" 2-#6 bars Column 1.5" cover...
20.0 30.0" 14 WL 2.5 k/ft Wo 1 k/ft 3.0", typ 3-#10 bars #3 stirrups 34,0" 2-#6 bars Column 1.5" cover typ The cantilever beam shown is made of Class 4000 concrete and Grade 60 rebar. The dead load shown includes the beam self weight (d) (20%) Determine the maximum stirrup reinforcement spacing at the location of maximum shear. Utilize the member end shear reduction from ACI § 9.4.3.2 (and assume the requirements to use this provision are met)
20.0...
3. The column shown below is subjected to axial load and bending moment causing bending about an axis parallel to that of the rows of bars. What moment would cause the column to fail if the axial load applied simultaneously was 500 kips? Material strengths are fc' = 6000 psi and fy = 60,000 psi. 20" As: 8.0 in2 8.0 in2 Figure: Problem 3
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...
The frame below has wind load and dead as shown. Use w(Dead) = 6
kip/ft and w(Live) = 3 kip/ft, L = 30 ft and H = 15 ft. The beams
and columns have modulus of elasticity E of 29000 ksi and moment of
inertias I(beam) = 2000 in4 and I(column) = 800
in4. Similarly they have cross-sectional areas A(beam) =
20 in2 and A(column) = 25 in2. Consider that
the wind can act in both horizontal directions.
Determine:
The...
Please try to answer all the parts of the question correctly and
with the best of your availability to get a thumbs up. Thanks.
Problem 3 : Interaction Diagrams -A short column is subje cted to a factored axial load of Pu-850 kips. The concrete has a compressive strength of 4 ksi and grade 60 steel is used. Use the interaction diagrams (where appropriate to answer the following): A. If the column is designed as a tied column, determine the...
Problem 9 (3 pts). A spiral circular column is subjected to an axial load of P- 850 kips Material properties are fe = 4 ksi and fy-60 ks. Concrete cover is 1.5 in. if the column has an outside diameter of 20 in. and the diameter of spiral wire is #3 bar,the maximum spiral pitch is most nearly 1. a. 1.8 in. b. 2.3 in. c. 2.8 in. d. 3.3 in.
Problem 9 (3 pts). A spiral circular column is...
11. (10 points) Check to determine if a W14x159 used as a column can support an axial dead load of 250k and an axial live load of 1000k if the length of the column is 14 feet and the value of G for Joint A has been determined to be 0.8. Use the LRFD Design Method and assume that the columns are bending about their y axis as shown. (Hint: The answer is in the Manual) W14x159 Fixed Base at...
Problem ll The figure below shows a cantilever beam with b = 12-in containing 3-No 7 bars that are anchored in the column by standard 90° hooks. fc 4500 psi (normal weight) and fy- 60,000 psi. If the steel is stressed to fy at the face of the column, can these bars: a) be anchored by hooks into the column? The clear cover to the side of the hook is 2 34 -in. The clear cover to the bar extension...
1. The number of equilibrium equations available in 2D is 6. 2. The Method of Sections results in a 2D rigid body equilibrium problem. 3. Indeterminate trusses can only be solved by Method of Joints, not Sections. 4. By definition, truss members must be pin connected & carry only axial load. 5. Shear Force is the first derivative of Bending Moment. 6. Distributed Load is the integral of Shear Force. 7. The maximum Bending Moment is always at the center...
Qu estion 1: (25 points) The beam shown below has a span of 13 ft and is reinforced with bars that ext end 8 inch beyond the face of the support. The centerline of the longitudinal bars nearest the side ace (i.e., the "outside bars") is 3.5 inch from, the side face as shown below. The concrete has a compressive strength of 3.0 ksi, and the reinforcement is Grade 60. The beam is loaded with a distributed live load (w)...
20.0 30.0" 14 WL 2.5 k/ft Wo 1 k/ft 3.0", typ 3-#10 bars #3 stirrups 34,0" 2-#6 bars Column 1.5" cover typ The cantilever beam shown is made of Class 4000 concrete and Grade 60 rebar. The dead load shown includes the beam self weight (d) (20%) Determine the maximum stirrup reinforcement spacing at the location of maximum shear. Utilize the member end shear reduction from ACI § 9.4.3.2 (and assume the requirements to use this provision are met)
20.0...
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