Construction Materials, Methods and Techniques (MindTap Course List)
4th Edition
ISBN: 9781305086272
Author: William P. Spence, Eva Kultermann
Publisher: Cengage Learning
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Chapter 5, Problem 3RQ
To determine
The field test for dry strength of soil
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Problem 1:
Given: In a given floor system, a 5-in concrete slab supported by T-beams of 24-ft spans, supporting 354 psf
live load. The T-beams are spaced 2x4 ft on center, and bw (width of the beam web) = 15 inches. Total T-beam
height is 25 inches. f'c = 4,000psi, fy = 60,000psi.
Design the T-beam. Show all steps. Sketch your Design.
Problem 2:
Given: A 25"x25" column is subject to a
factored axial load of Pu=1,200 kips, and
factored design moment of Mu-354 kips-ft.
f'c 4,000psi, fy = 60,000psi.
Determine the required steel ratio (p) and
ties. Sketch the design.
2.0
0.08
INTERACTION DIAGRAM R4-60.9
fc-4 ksi
1.8
1,- 60 ksi
0.07
Y=0.9
16
1.6
0.06
Kmax
0.05
1.4
f/f, = 0
0.04
00
K₁ = P₁/f'c Ag
1.2
12
0.03
0.25
1.0
10
0.02
0.01
0.8
0.6
0.4
€,= 0.0035
0.2
€,= 0.0050
0.0
h
yh
0.50
0.75
1.0.
0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50
R₁ = P₁e/f'Agh
Given: In a given floor system, a 5-in concrete slab supported by T-beams of 24-ft spans, supporting 354 psf
live load. The T-beams are spaced 2x4 ft on center, and bw (width of the beam web) = 15 inches. Total T-beam
height is 25 inches. f'c = 4,000psi, fy = 60,000psi.
Design the T-beam. Show all steps. Sketch your Design.
Problem 2:
Given: A 25"x25" column is subject to a
factored axial load of Pu=1,200 kips, and
factored design moment of Mu-354 kips-ft.
f'c 4,000psi, fy = 60,000psi.
Determine the required steel ratio (p) and
ties. Sketch the design.
2.0
P=0.08
INTERACTION DIAGRAM R4-60.9
fc-4 ksi
1.8
1,- 60 ksi
0.07
7=0.9
1.6
16
0.06
Kmax
0.05
1.4
f/f, = 0
0.04
90
K₁ = P₁/f'Ag
1.2
0.03
0.25
0.02
1.0
0.01
0.8
0.6
0.4
€= 0.0035
0.2
€,= 0.0050
0.0
h
yh
0.50
0.75
1.0.
0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50
R₁ = P₁e/f'Ah
Chapter 5 Solutions
Construction Materials, Methods and Techniques (MindTap Course List)
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- Given: A 25"x25" column is subject to a factored axial load of Pu=1,200 kips, and factored design moment of Mu=354 kips-ft. f'c 4,000psi, fy = 60,000psi. Determine the required steel ratio () and ties. Sketch the design.arrow_forwardSee Figure (1) below. A 14 in. wide and 2 in. thick plate subject to tensile loading has staggered holes as shown. Compute An and Ae. P 2.00 3.00 4.00 3.00 2.00 ΕΙ T A B C F G D S = 2.50 3/4" bolts in 13/16" holes 14x12 PL Parrow_forwardNo ai answers okk only human experts solve it correct complete solutions okk only Civil Engineering experts solve it okkkarrow_forward
- No ai answers okk only human experts solve it correct complete solutions okk only Civil Engineering experts solve it okkk....arrow_forwardProject management questionarrow_forwardNo ai answers okk only human experts solve it correct complete solutions okk only Civil Engineering experts solve it okkk.....arrow_forward
- Only 100% sure experts solve it correct complete solutions ok fastarrow_forwardIf a contractor has to quit a project due to a lack of funds what would be the best way to handle the breach of contract?arrow_forwardTo determine the elevation of a point such as B in Fig. 24 in the text, the following procedure was used: With the transit set up over a point such as A whose elevation is 128.3 ft, the height of the transverse axis above A was 4.84 ft and the vertical angle b between the horizontal line CD through the transverse axis and the line of sight to the point B was +12º 42'. Then a point such as E was marked on the ground on the line between A and B and at a horizontal distance from A equal to 50.00 ft. Finally, with the transit set up over the point E, the difference in elevation between the point A and the transverse axis F of the transit at E was found to be 3.47 ft, and the vertical angle d between the horizontal line through F and the line of sight to the point B was +18º 07'. The elevation of the point B isarrow_forward
- Which of the following statements is not true when considering precision in surveying?A. Measuring angles to the nearest minute and distances to the nearest hundredth of a foot is usually sufficient for locating theroute of a highway.B. A very accurate survey provides a very high degree of precision.C. Precision is defined as the degree of correctness applied in instruments.D. The most precise instruments can produce inaccurate results i f subjected to mechanical or human error.arrow_forwardWhich of the following is not desirable when marking a transit point for conducting a survey?A. Embedding a nail into soft concreteB. Driving a tack flush with the top o f a wooden hubC. Chiseling a cross on an embedded rockD. Driving a nail with flagging into undisturbed eartharrow_forwardA one-story building as shown in the plan, if the height of the concrete floor is 320 m, the width of the wall is 0.24 and the roof is made of reinforced concrete, the amount of iron for the roof is 100 kg m3 and there are downward depressions with a depth of 0.40 and a width of 0.25 along the wall and the amount of reinforcing iron is 89 kg m3 and there are 14 columns with dimensions of 0.500.30 and a height of 2.80, the amount of reinforcing iron is 120 kg m3 Find The amount of bricks used for construction The amount of mortar used for construction (cement + sand) -1 -2 The amount of plaster for the building from the inside is 2 cm thick (cement + sand) -3 Quantity of floor tiles for the room Quantity of concrete for the ceiling and beams. Ceiling thickness: 0.20 m. Total amount of reinforcing steel for the roof (tons) Quantity of reinforcing steel for columns (tons) Total amount of reinforcing steel for balls (tons) -4 -5 -6 -7 -8arrow_forward
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