Homework Answers
Add Answer to:
4. For the beam shown below,fe' = 4000 psi and fy = 60,000 psi. (20 points)...
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...
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)...
The continuous beam shown in Fig. 1 is part of a beam-and-slab floor system of an...
The continuous beam shown in Fig. 1 is part of a beam-and-slab floor system of an office building and is typical of a series of beams spaced at 4 m intervals. In addition to the dead load, the live load on the floor is 3 kPa. Using f'c = 32MPa, N32 bars for main reinforcement, a) Find the maximum positive and negative moments using the AS3600 simplified method. b) Design the beam cross-section for the maximum amount of tensile steel...
Problem 4 Load and Load Combinations (50pts) With fy 60,000 psi and fc' 4000 psi, select...
Problem 4 Load and Load Combinations (50pts) With fy 60,000 psi and fc' 4000 psi, select the tensile reinforcing for the edge L beam AB for the floor system shown in Figure 4.1. The cross section of the floor system is shown in Figure 4.2. Note that LI = 6ft and L2 = 12ft. Assume simple supports at sides A and B. The live load is to be 80 psf, while the dead load in addition to the concrete's weight...
Problem Two: The beam shown below part is for an interior span and is cast monolithically with a one-way slab. The clear span for the beam is 30 feet, and the clear spacing between beams is 10 fee...
Problem Two: The beam shown below part is for an interior span and is cast monolithically with a one-way slab. The clear span for the beam is 30 feet, and the clear spacing between beams is 10 feet. (a) Reinforcement is shown for the positive moment region. Determine if the beam is adequate to support a uniformly distributed, factored load of 5 k/ft. (b) Design the slab reinforcement for the positive moment region using a factored load of 500 psf....
Compute the design strength(positive moment), фМ., for the beam shown below. note that the beam shown...
Compute the design strength(positive moment), фМ., for the beam shown below. note that the beam shown is an independent beam, which does not bend in conjunction with any adjacent beam(s). The material strengths are as follows: Please l. f, - 60,000 psi 3,000 psi (30 pts.) Check the development length for the bar size shown (No. 8 bars). The bars are not epoxy coated and the concrete is normalweight concrete. Assume the simplified equation can be used. The bars are...
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 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...
5. For the beam and properties shown: Ec 4,030 ksi f=6ksi fy=60 ksi h-12" fr=530 psi...
5. For the beam and properties shown: Ec 4,030 ksi f=6ksi fy=60 ksi h-12" fr=530 psi E,-29,000 ksi 4-# 11 y = 150 pcf 2.5" b-18" Find: .Cracking moment based on gross section properties (10 pts) a b. Service moment corresponding to 0.45 fe, 0.4f, (10 pts) Nominal Flexural Strength (use Whitney Stress block) (10 pts) c. d. Does this beam satisfy ACI 9.6.1? (10 pts) e. If B 0.75, is the beam closest to a tension controlled or compression...
8-7 A rectangular beam with cross section b h=24 in., and d tored load of 3.9...
8-7 A rectangular beam with cross section b h=24 in., and d tored load of 3.9 kips/ft, including its own dead load. The beam is simply supported with a is reinforced with five No. 7 Grade-60 bars, two of which are cutoff between midspan and the and three of which extend 10 in. past the centers of supports. f= 4000 psi. (normal weight). The beam has Grade 60 No. 3 stirrups satisfying AC Code Sections 9.7.6.2.2 and 9.6.3.3. 14 in.,...
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...
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)...
The continuous beam shown in Fig. 1 is part of a beam-and-slab floor system of an office building and is typical of a series of beams spaced at 4 m intervals. In addition to the dead load, the live load on the floor is 3 kPa. Using f'c = 32MPa, N32 bars for main reinforcement, a) Find the maximum positive and negative moments using the AS3600 simplified method. b) Design the beam cross-section for the maximum amount of tensile steel...
Problem 4 Load and Load Combinations (50pts) With fy 60,000 psi and fc' 4000 psi, select the tensile reinforcing for the edge L beam AB for the floor system shown in Figure 4.1. The cross section of the floor system is shown in Figure 4.2. Note that LI = 6ft and L2 = 12ft. Assume simple supports at sides A and B. The live load is to be 80 psf, while the dead load in addition to the concrete's weight...
Problem Two: The beam shown below part is for an interior span and is cast monolithically with a one-way slab. The clear span for the beam is 30 feet, and the clear spacing between beams is 10 feet. (a) Reinforcement is shown for the positive moment region. Determine if the beam is adequate to support a uniformly distributed, factored load of 5 k/ft. (b) Design the slab reinforcement for the positive moment region using a factored load of 500 psf....
Compute the design strength(positive moment), фМ., for the beam shown below. note that the beam shown is an independent beam, which does not bend in conjunction with any adjacent beam(s). The material strengths are as follows: Please l. f, - 60,000 psi 3,000 psi (30 pts.) Check the development length for the bar size shown (No. 8 bars). The bars are not epoxy coated and the concrete is normalweight concrete. Assume the simplified equation can be used. The bars are...
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 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...
5. For the beam and properties shown: Ec 4,030 ksi f=6ksi fy=60 ksi h-12" fr=530 psi E,-29,000 ksi 4-# 11 y = 150 pcf 2.5" b-18" Find: .Cracking moment based on gross section properties (10 pts) a b. Service moment corresponding to 0.45 fe, 0.4f, (10 pts) Nominal Flexural Strength (use Whitney Stress block) (10 pts) c. d. Does this beam satisfy ACI 9.6.1? (10 pts) e. If B 0.75, is the beam closest to a tension controlled or compression...
8-7 A rectangular beam with cross section b h=24 in., and d tored load of 3.9 kips/ft, including its own dead load. The beam is simply supported with a is reinforced with five No. 7 Grade-60 bars, two of which are cutoff between midspan and the and three of which extend 10 in. past the centers of supports. f= 4000 psi. (normal weight). The beam has Grade 60 No. 3 stirrups satisfying AC Code Sections 9.7.6.2.2 and 9.6.3.3. 14 in.,...
Most questions answered within 3 hours.
-
The blues made its way into many kinds of music. Eric Clapton,
The Beatles, and Elvis...
asked 1 hour ago -
8. A wave in a string has a wave function given by: y (x, t) =...
asked 18 minutes ago -
If you’re standing at the bottom of a hill and asked to evaluate
it while being...
asked 2 hours ago -
1. Which region has taken the lead in the world of
e-waste handling?
a) European Union...
asked 2 hours ago -
A 8.15- g bullet from a 9-mm pistol has a velocity of 366.0 m/s.
It strikes...
asked 3 hours ago -
The outstanding bonds of Alpha Extracts have a yield to maturity
of 7.4 percent and a...
asked 3 hours ago -
The Problem: The Case of the Harmonizing Vacations
Your CEO is exploring partnering with a European...
asked 4 hours ago -
A chemical equation is balanced by adding coefficients in front
of some formulas so that the...
asked 4 hours ago -
From the literature (reference your sources): What are the
lattice parameters of calcite and aragonite? Why...
asked 5 hours ago -
Your system is rejecting the question am asking which is
preceded by a case study. It...
asked 5 hours ago -
3. On January 2, 2000, Larry creates a trust with himself as
trustee. Larry as trustee...
asked 5 hours ago -
A member of the volleyball team spikes the ball. During this
process, she changes the velocity...
asked 5 hours ago