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Design a column base plate for the factured load shown below. Assume Grade so steel. e...
Given: A W14X109 column (A992 steel) requires a base plate (A36 steel) design. Assume the base...
Given: A W14X109 column (A992 steel) requires a base plate (A36 steel) design. Assume the base plate will be on the full area of concrete support. The dead load compression in the column is 320 kips and the live load compression in the column is 600 kips. The concrete support under the base plate has a 28-day strength of fc 5 ksi. Required: Design the base plate with the goal of minimizing the required thickness.
5.14-3 Design a base plate for a W12 × 87 column supporting a service dead load...
5.14-3 Design a base plate for a W12 × 87 column supporting a service dead load of 65 kips and a service live load of 195 kips. The support will be a 16-inch × 16-inch concrete pier. Use A36 steel and = 3.5 ksi. a. Use LRFD b. Use ASD
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...
Design a square tied column to carry axial service loads of 320 kips dead load and 190 kips live load. There is no identified applied moment. Assume that the column is short. Use f’c =4000 psi and fy...
Design a square tied column to carry axial service loads of 320
kips dead load and 190 kips live load. There is no identified
applied moment. Assume that the column is short. Use f’c =4000 psi
and fy = 60,000 psi. Also, draw the flexural and shear
reinforcement on a sketch.
Case 3: Design of Short Columns - Small Eccentricity Design a square tied column to carry axial service loads of 320 kips dead load and 190 kips live load....
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....
Problem 2 Assume normal weight concrete with fe' = 3,500 psi and steel bars of Grade...
Problem 2 Assume normal weight concrete with fe' = 3,500 psi and steel bars of Grade 60 (fy = 60,000 psi). For design loads assume dead load Po = 300 kips (including member self-weight) and live load P. = 400 kips. Design a short round spiral column for axial load only, assuming initially po = 4%. Form sizes are available in 2 in increments.
ANSWERS Design load at base of column A = 182.00 kN Design load at base of column D = 172.58 kN The slab shown below is...
ANSWERS
Design load at base of column A = 182.00 kN
Design load at base of column D = 172.58 kN
The slab shown below is to carry a characteristic variable load of 2.5 kN/m2. Calculate the design load on the slab (per m2) and use it to determine the UDL on beams AB & CD. From this, calculate the design load at the base of column A. Repeat for column D. Assume slab / beams span to the outer...
15.3. psi. Design a single-column footing (including dowels) to support an 11 in. square column reinforced...
15.3. psi. Design a single-column footing (including dowels) to support an 11 in. square column reinforced with eight No. 9 (No. 29) bars centered 2.5 in. from the column faces (equal number of bars on each face). The unfactored axial dead load = 135 kips, and the unfactored axial live load=125 kips. For the column, f=4000 psi and f=60,000 psi. The base of the footing will be 3 ft below grade. The allowable soil bearing pressure is 3000 lb/ft2. Material...
Determine the required thickness (inches) for a base plate of A36 steel support a W14x211 column...
Determine the required thickness (inches) for a base plate of A36 steel support a W14x211 column assuming the followin Pu = Py = 1,800 kips B = 24" N = 30" Assume the concrete and concrete bearing pressure are adequate.
Design a square single column footing to support an 18 inch square interior column reinforced with...
Design a square single column footing to support an 18 inch square interior column reinforced with 8-#10 bars. The column carries an unfactored dead load of 245 Kips that includes weight of soil and weight of footing and an unfactored live load of 20 feet below finished grade. The footing is 10 feet by 10 feet and is 30 inches thick. The allowable soil pressure is 5000 psf, fe' 4000 psi and fy 60000 psi. Concrete used shall be sand...
Given: A W14X109 column (A992 steel) requires a base plate (A36 steel) design. Assume the base plate will be on the full area of concrete support. The dead load compression in the column is 320 kips and the live load compression in the column is 600 kips. The concrete support under the base plate has a 28-day strength of fc 5 ksi. Required: Design the base plate with the goal of minimizing the required thickness.
5.14-3 Design a base plate for a W12 × 87 column supporting a service dead load of 65 kips and a service live load of 195 kips. The support will be a 16-inch × 16-inch concrete pier. Use A36 steel and = 3.5 ksi. a. Use LRFD b. Use ASD
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...
Design a square tied column to carry axial service loads of 320
kips dead load and 190 kips live load. There is no identified
applied moment. Assume that the column is short. Use f’c =4000 psi
and fy = 60,000 psi. Also, draw the flexural and shear
reinforcement on a sketch.
Case 3: Design of Short Columns - Small Eccentricity Design a square tied column to carry axial service loads of 320 kips dead load and 190 kips live load....
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....
Problem 2 Assume normal weight concrete with fe' = 3,500 psi and steel bars of Grade 60 (fy = 60,000 psi). For design loads assume dead load Po = 300 kips (including member self-weight) and live load P. = 400 kips. Design a short round spiral column for axial load only, assuming initially po = 4%. Form sizes are available in 2 in increments.
ANSWERS
Design load at base of column A = 182.00 kN
Design load at base of column D = 172.58 kN
The slab shown below is to carry a characteristic variable load of 2.5 kN/m2. Calculate the design load on the slab (per m2) and use it to determine the UDL on beams AB & CD. From this, calculate the design load at the base of column A. Repeat for column D. Assume slab / beams span to the outer...
15.3. psi. Design a single-column footing (including dowels) to support an 11 in. square column reinforced with eight No. 9 (No. 29) bars centered 2.5 in. from the column faces (equal number of bars on each face). The unfactored axial dead load = 135 kips, and the unfactored axial live load=125 kips. For the column, f=4000 psi and f=60,000 psi. The base of the footing will be 3 ft below grade. The allowable soil bearing pressure is 3000 lb/ft2. Material...
Determine the required thickness (inches) for a base plate of A36 steel support a W14x211 column assuming the followin Pu = Py = 1,800 kips B = 24" N = 30" Assume the concrete and concrete bearing pressure are adequate.
Design a square single column footing to support an 18 inch square interior column reinforced with 8-#10 bars. The column carries an unfactored dead load of 245 Kips that includes weight of soil and weight of footing and an unfactored live load of 20 feet below finished grade. The footing is 10 feet by 10 feet and is 30 inches thick. The allowable soil pressure is 5000 psf, fe' 4000 psi and fy 60000 psi. Concrete used shall be sand...
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