103 For each problem, design a short square, rectangular, or circular column, as indicated, for each set of axial loads given. according to ACI limitations. Also, design the necessary ties or spirals and draw sketches of the column sections showing all bar arrangements. Usef,60 ksi and a steel ratio close to the p, given (P dead load, P, live load, b width of a P =A, JA,). rectangular column, and " (ksi) Number 4 Section Square Square Square Square Rectangular, b12 in. Rectangular, b 14 in. Rectangular, b= 12 in. Rectangular, b 18 in. Circular-spiral Circular-spiral Circular-spiral Circular-spiral El units use 1 psi-0.0069 MPa, 1 K-4.45 KN, and 1 in. = 25,4 mm. 4 PD (K) 4 4 5 200 750 220 330 190 280 210 690 350 475 PL (K) 400 285 Po% 4 3.5 7 200 400 165 230 170 315 150 460 3 boni 2 4.5 3 2 130 220 260 200 4.25 4 3.25 One Solution 14 x 14,8 no. 9 24x24, 16 no. 10 12x 12,8 no. 10. 16x 16,8 no. 9 12x 18, 6 no. 8. 14x20, 10 no. 10 12x16, 6 no. 9 18x32, 8 no. 10 16,7 no. 9 20,7 no. 10 18, 9 no. 10 15, 6 no. 10
103 For each problem, design a short square, rectangular, or circular column, as indicated, for each set of axial loads given. according to ACI limitations. Also, design the necessary ties or spirals and draw sketches of the column sections showing all bar arrangements. Usef,60 ksi and a steel ratio close to the p, given (P dead load, P, live load, b width of a P =A, JA,). rectangular column, and " (ksi) Number 4 Section Square Square Square Square Rectangular, b12 in. Rectangular, b 14 in. Rectangular, b= 12 in. Rectangular, b 18 in. Circular-spiral Circular-spiral Circular-spiral Circular-spiral El units use 1 psi-0.0069 MPa, 1 K-4.45 KN, and 1 in. = 25,4 mm. 4 PD (K) 4 4 5 200 750 220 330 190 280 210 690 350 475 PL (K) 400 285 Po% 4 3.5 7 200 400 165 230 170 315 150 460 3 boni 2 4.5 3 2 130 220 260 200 4.25 4 3.25 One Solution 14 x 14,8 no. 9 24x24, 16 no. 10 12x 12,8 no. 10. 16x 16,8 no. 9 12x 18, 6 no. 8. 14x20, 10 no. 10 12x16, 6 no. 9 18x32, 8 no. 10 16,7 no. 9 20,7 no. 10 18, 9 no. 10 15, 6 no. 10
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
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Transcribed Image Text:103 For each problem, design a short square, rectangular, or circular column, as indicated, for each set of axial loads given.
all bar arrangements. Usef=60 ksi and a steel ratio close to the p, given (P= dead load, P,= live load, b= width of a
according to ACI limitations. Also, design the necessary ties or spirals and draw sketches of the column sections showing
= A,JA).
Pg
rectangular column, and
Number
S4U
(ksi)
4
400
Section
Square
Square
Square
Square
Rectangular, b= 12 in.
Rectangular, b= 14 in.
Rectangular, b= 12 in.
Rectangular, b= 18 in.
Circular-spiral
Circular-spiral
Circular-spiral
Circular-spiral
For SI units, use 1 psi-0.0069 MPa, 1 K 4.45 KN, and 1 in. = 25.4 mm.
k
4
4
4
5
4
PD
(K)
4
4
5
PL
(K)
200
750
220
330
190
280 315
150
460
130
220
200
400
165
230
170
210
690
350
475
400 260
285 200
Po%
4
3.5
7
3 botit
2
4.5
3
2
4
3.25
5
4.25
One Solution
14 x 14, 8 no. 9
24 x 24, 16 no. 10
12x 12, 8 no. 10:
16x 16,8 no. 9
12x 18, 6 no. 8
14x20, 10 no. 10
12x16, 6 no. 9
18x32, 8 no. 10
16, 7 no. 9.
20,7 no. 10
18,9 no. 10
15, 6 no. 10
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