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Problem 4. (20 points) For the Flanged Beam shown below, the effective flange width is given...
4. For the beam shown below,fe' = 4000 psi and fy = 60,000 psi. (20 points)...
4. For the beam shown below,fe' = 4000 psi and fy = 60,000 psi. (20 points) (a) Compute the effective flange width at midspan. 911-6 in (a) Beam section and distance to adjacent beams Support (negative bending) Midspan positive bending) 7 No. 7 bars IIT 3 No. 8 plus 2 No. 7 bars at midspan 22 2 No. 8 bars at ends (b) Beam span supported by 18-in. wide columns (b) Compute Mn for the positive and negative-moment regions and...
For the beam shown use f-3000 psi and fy 60000 psi. 1- Compute the effective flange...
For the beam shown use f-3000 psi and fy 60000 psi. 1- Compute the effective flange width 2- Compute фМ, for the positive and negative moment regions and check ACI requirements for both sections. At the support, the bottom bars are in one layer and at mid-span, the # 8 bars are in the bottom layer and the # 7 bars are in a second layer. Assume 2.5 in concrete cover (from outside face of concrete to the center of...
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...
Problem 1 Reinforced Concrete T-Flanged Sections (50 pts.) You are required to analyze and design...
Problem 1 Reinforced Concrete T-Flanged Sections (50 pts.) You are required to analyze and design the propped cantilever t-section from HM 4 but for shear only. Draw shear V and moment M diagrams for uniformly distributed load throughout the 30ft span and equally concentrated loads at 10ft and 30ft. Recall that the connection at the left joint N1 is fixed. The connection at 20ft N3 is a roller. The right end node N2 is a free end. Usea concrete compressive...
M 3: (20 points) Design the stirrup spacing for the beam shown below. Change your design between ...
m 3: (20 points) Design the stirrup spacing for the beam shown below. Change your design between Zones 1, 2, and 3 of the beam length, using a uniform spacing in each zone. Ignore the self-weight of the beam. Loads on the beam are service loads so load factors must be applied according to ACI 318 (subscripts "d" and T" denote dead and live loads, respectively). Material strengths are fe 4,0oo psi and fy 60,000 psi. The total factored shear...
5. (20 Points) For the loading on the simply supported beam shown below. a) What is...
5. (20 Points) For the loading on the simply supported beam shown below. a) What is the internal shear and bending moment at point C? b) Given the beam has a rectangular cross section with a width of 8 in. and a height of 20 in., find the maximum normal stress (om) in the cross section at C from the bending moment calculated above. 600 lb 200 lb/ft
4 (30 points). (a) Compute M, for the three beams shown in the figure below. In...
4 (30 points). (a) Compute M, for the three beams shown in the figure below. In each case, c=4000 psi, f = 60 ksi, b = 12 in., d = 32.5 in., and h = 36 in. (b) From the results of part (a), comment on whether adding compression reinforcement is a cost-effective way of increasing the strength, pM,, of a beam. 12 in. 3.5 in. 2.5 in 2 No. 9 bars 4 No. 9 bars 32.5 in. 6 No....
4. For the beam shown below,fe' = 4000 psi and fy = 60,000 psi. (20 points) (a) Compute the effective flange width at midspan. 911-6 in (a) Beam section and distance to adjacent beams Support (negative bending) Midspan positive bending) 7 No. 7 bars IIT 3 No. 8 plus 2 No. 7 bars at midspan 22 2 No. 8 bars at ends (b) Beam span supported by 18-in. wide columns (b) Compute Mn for the positive and negative-moment regions and...
For the beam shown use f-3000 psi and fy 60000 psi. 1- Compute the effective flange width 2- Compute фМ, for the positive and negative moment regions and check ACI requirements for both sections. At the support, the bottom bars are in one layer and at mid-span, the # 8 bars are in the bottom layer and the # 7 bars are in a second layer. Assume 2.5 in concrete cover (from outside face of concrete to the center of...
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...
Problem 1 Reinforced Concrete T-Flanged Sections (50 pts.) You are required to analyze and design the propped cantilever t-section from HM 4 but for shear only. Draw shear V and moment M diagrams for uniformly distributed load throughout the 30ft span and equally concentrated loads at 10ft and 30ft. Recall that the connection at the left joint N1 is fixed. The connection at 20ft N3 is a roller. The right end node N2 is a free end. Usea concrete compressive...
m 3: (20 points) Design the stirrup spacing for the beam shown below. Change your design between Zones 1, 2, and 3 of the beam length, using a uniform spacing in each zone. Ignore the self-weight of the beam. Loads on the beam are service loads so load factors must be applied according to ACI 318 (subscripts "d" and T" denote dead and live loads, respectively). Material strengths are fe 4,0oo psi and fy 60,000 psi. The total factored shear...
5. (20 Points) For the loading on the simply supported beam shown below. a) What is the internal shear and bending moment at point C? b) Given the beam has a rectangular cross section with a width of 8 in. and a height of 20 in., find the maximum normal stress (om) in the cross section at C from the bending moment calculated above. 600 lb 200 lb/ft
4 (30 points). (a) Compute M, for the three beams shown in the figure below. In each case, c=4000 psi, f = 60 ksi, b = 12 in., d = 32.5 in., and h = 36 in. (b) From the results of part (a), comment on whether adding compression reinforcement is a cost-effective way of increasing the strength, pM,, of a beam. 12 in. 3.5 in. 2.5 in 2 No. 9 bars 4 No. 9 bars 32.5 in. 6 No....
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