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2- Determine the theoretical steel areas required for the section shown. The dimensions are limited to...
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...
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
. 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...
B. Select the required reinforcing steel for the following beam section for Mo = 130 fl-k,...
B. Select the required reinforcing steel for the following beam section for Mo = 130 fl-k, ML = 275 fl-k, fy = 60,000 psi, fc = 3,000 psi, b = 15'. d = 24", and d' = 2.5". Verify the section using the actual bar selection. Determine the required number of layers for the top and bottom bars. Show a sketch of the cross section indicating bar sizes and bar layout. 2.5" 15'
Class Activity Consider an unreinforced concrete beam cross section with the dimensions (in inches) shown in...
Class Activity Consider an unreinforced concrete beam cross section with the dimensions (in inches) shown in the figure. The comcrete is sormal-weight with 6000 psi145Ib/f The section is subjected to a positive beading moment of 500 kip-ft about its horizontal axis causing compression and tension on the faces as shown. Assume the section remains elastic under this moment 15 Tension 20 Determine centroid of the section from the compression face. Answer: c-7.622 in (A) Determine moment of inertia of the...
Find the maximum design axial load strength for the tied column of cross section shown in Figure 1.1. Check the ties. Assume a short column. Use f’c = 4000 psi and fy = 60,000 psi for both longitudina...
Find the maximum design axial load strength for the tied column
of cross section shown in Figure 1.1. Check the ties. Assume a
short column. Use f’c = 4000 psi and fy = 60,000 psi for both
longitudinal steel and ties. Also, draw the flexural and shear
reinforcement on a sketch.
Case 1: Design of Short Columns- Small Eccentricity Find the maximum design axial load strength for the tied column of cross section shown in Figure 1.1. Check the ties....
a. The beam of the cross section shown has f'c = 3000 psi and fy =...
a. The beam of the cross section shown has f'c = 3000 psi and fy = 60,000 psi. Calculate Mn. b. Same cross section as part (a) but the steel is changed to four No. 10 bars. Calculate Mn. Calculate the percent increase in Mn and As. c. Same cross section as part (a) but the depth d is increased to 28 in. Calculate Mn. Calculate the percent increase in Mn and d. d. Same cross section as part (a)...
Show Diagrams Case 2: Design of Short Columns - Small Eccentricity Determine whether the spiral column of cross section shown in Figure 2.1 is adequate to carry a factored axial load Pu of 540 kips. A...
Show Diagrams
Case 2: Design of Short Columns - Small Eccentricity Determine whether the spiral column of cross section shown in Figure 2.1 is adequate to carry a factored axial load Pu of 540 kips. Assume small eccentricity. Check the spiral. Use fc 4000 psi and fy -60,000 psi. 큠.φ @ 2 7-'8 bars 1cover Figure 2.1 Spiral Column
Case 2: Design of Short Columns - Small Eccentricity Determine whether the spiral column of cross section shown in Figure 2.1...
The 22 in does not have to do with this problem 22 in. 3. Using equilibrium...
The 22 in does not have to do with this problem
22 in. 3. Using equilibrium equations, determine the values of P. and M. for the rectangular column cross-section shown assuming it is 14" strained to -0.003 (compression) on the right-hand edge and the rebars in the opposite side are strained to +0.0010 (tension). Use f'c = 4000 psi and fy = 60,000 psi. Assume 6-#9 bars. 2.5 15 2.5
A reinforced concrete beam with dimensions (300 mm * 800 mm) subjected to a service dead...
A reinforced concrete beam with dimensions (300 mm * 800 mm) subjected to a service dead load moment (MD=500 kN.m) and a service live load moment (ML = 400 kN.m). Design the section as a double reinforced section (the dimensions can't be increased). Place the compression reinforcement at 65 mm from the compression face. Compressive strength of concrete; fe 28 MPa, yielding stress of reinforcement; fy= 420 MPa. Assume 30 mm to be used in the tension (two layers), 26...
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...
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
. 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...
B. Select the required reinforcing steel for the following beam section for Mo = 130 fl-k, ML = 275 fl-k, fy = 60,000 psi, fc = 3,000 psi, b = 15'. d = 24", and d' = 2.5". Verify the section using the actual bar selection. Determine the required number of layers for the top and bottom bars. Show a sketch of the cross section indicating bar sizes and bar layout. 2.5" 15'
Class Activity Consider an unreinforced concrete beam cross section with the dimensions (in inches) shown in the figure. The comcrete is sormal-weight with 6000 psi145Ib/f The section is subjected to a positive beading moment of 500 kip-ft about its horizontal axis causing compression and tension on the faces as shown. Assume the section remains elastic under this moment 15 Tension 20 Determine centroid of the section from the compression face. Answer: c-7.622 in (A) Determine moment of inertia of the...
Find the maximum design axial load strength for the tied column
of cross section shown in Figure 1.1. Check the ties. Assume a
short column. Use f’c = 4000 psi and fy = 60,000 psi for both
longitudinal steel and ties. Also, draw the flexural and shear
reinforcement on a sketch.
Case 1: Design of Short Columns- Small Eccentricity Find the maximum design axial load strength for the tied column of cross section shown in Figure 1.1. Check the ties....
a. The beam of the cross section shown has f'c = 3000 psi and fy = 60,000 psi. Calculate Mn. b. Same cross section as part (a) but the steel is changed to four No. 10 bars. Calculate Mn. Calculate the percent increase in Mn and As. c. Same cross section as part (a) but the depth d is increased to 28 in. Calculate Mn. Calculate the percent increase in Mn and d. d. Same cross section as part (a)...
Show Diagrams
Case 2: Design of Short Columns - Small Eccentricity Determine whether the spiral column of cross section shown in Figure 2.1 is adequate to carry a factored axial load Pu of 540 kips. Assume small eccentricity. Check the spiral. Use fc 4000 psi and fy -60,000 psi. 큠.φ @ 2 7-'8 bars 1cover Figure 2.1 Spiral Column
Case 2: Design of Short Columns - Small Eccentricity Determine whether the spiral column of cross section shown in Figure 2.1...
The 22 in does not have to do with this problem
22 in. 3. Using equilibrium equations, determine the values of P. and M. for the rectangular column cross-section shown assuming it is 14" strained to -0.003 (compression) on the right-hand edge and the rebars in the opposite side are strained to +0.0010 (tension). Use f'c = 4000 psi and fy = 60,000 psi. Assume 6-#9 bars. 2.5 15 2.5
A reinforced concrete beam with dimensions (300 mm * 800 mm) subjected to a service dead load moment (MD=500 kN.m) and a service live load moment (ML = 400 kN.m). Design the section as a double reinforced section (the dimensions can't be increased). Place the compression reinforcement at 65 mm from the compression face. Compressive strength of concrete; fe 28 MPa, yielding stress of reinforcement; fy= 420 MPa. Assume 30 mm to be used in the tension (two layers), 26...
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