II. DESIGN OF REINFORCED ONE-WAY SLABS A slab is simply supported on all its sides. The length of the short sides, , = 4m and the length of the long sides, e, = 8m. The slab is subjected to the following loads: %3D 1. Dead Loads a. Celling and Utilities 0.5 KPa b. Topping and finishes 1.2 KPa 2. Live Loads a. Office 2.4 KPa Concrete compressive strength, f'c = 30 MPa Yield strength of steel reinforcement, fy = 350 MPa "use 20mm concrete cover *use concrete weight = 23.5 KN/m "use U= 1.2(DL) + 1.6(LL) factored load combination "for simply supported beams. M.
II. DESIGN OF REINFORCED ONE-WAY SLABS A slab is simply supported on all its sides. The length of the short sides, , = 4m and the length of the long sides, e, = 8m. The slab is subjected to the following loads: %3D 1. Dead Loads a. Celling and Utilities 0.5 KPa b. Topping and finishes 1.2 KPa 2. Live Loads a. Office 2.4 KPa Concrete compressive strength, f'c = 30 MPa Yield strength of steel reinforcement, fy = 350 MPa "use 20mm concrete cover *use concrete weight = 23.5 KN/m "use U= 1.2(DL) + 1.6(LL) factored load combination "for simply supported beams. M.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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![II. DESIGN OF REINFORCED ONE-WAY SLABS
A slab is simply supported on all its sides. The length of the short sides, , = 4m and the length of the long
sides, e, = 8m. The slab is subjected to the following loads:
1. Dead Loads
a. Celling and Utilities 0.5 KPa
b. Topping and finishes 1.2 KPa
2. Live Loads
a. Office
2.4 KPa
Concrete compressive strength, f'c = 30 MPa
Yield strength of steel reinforcement, fy = 350 MPa
"use 20mm concrete cover
*use concrete weight = 23.5 KN/m
"use U = 1.2(DL) + 1.6(LL) factored load combination
*for simply supported beams, Mmox = (we*)/8
*use h = e/20 for minimum thickness of one-way slabs
1. What is the minimum thickness, h that can be used unless deflections are calculated?
A. 200 mm
8. 250 mm
C. 100 mm
D. 150 mm
2. What is the self weight, wseir of the 1m strip slab?
A. 2.35 KN/m
8. 3.525 KN/m
C. 4.7 KN/m
D. 5.875 KN/m
3. Considering 1m strip of the slab, what is the Foctored Moment, M, ?
A. 17.6 KN-m
B. 23.04 KN-m
C. 92.16 KN-m
D. 11.76 KN-m](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F23892eba-f694-46a0-b6d1-c11cff4de547%2F6b95ab95-e577-4691-84c4-0465906359a4%2F15m9gl3_processed.jpeg&w=3840&q=75)
Transcribed Image Text:II. DESIGN OF REINFORCED ONE-WAY SLABS
A slab is simply supported on all its sides. The length of the short sides, , = 4m and the length of the long
sides, e, = 8m. The slab is subjected to the following loads:
1. Dead Loads
a. Celling and Utilities 0.5 KPa
b. Topping and finishes 1.2 KPa
2. Live Loads
a. Office
2.4 KPa
Concrete compressive strength, f'c = 30 MPa
Yield strength of steel reinforcement, fy = 350 MPa
"use 20mm concrete cover
*use concrete weight = 23.5 KN/m
"use U = 1.2(DL) + 1.6(LL) factored load combination
*for simply supported beams, Mmox = (we*)/8
*use h = e/20 for minimum thickness of one-way slabs
1. What is the minimum thickness, h that can be used unless deflections are calculated?
A. 200 mm
8. 250 mm
C. 100 mm
D. 150 mm
2. What is the self weight, wseir of the 1m strip slab?
A. 2.35 KN/m
8. 3.525 KN/m
C. 4.7 KN/m
D. 5.875 KN/m
3. Considering 1m strip of the slab, what is the Foctored Moment, M, ?
A. 17.6 KN-m
B. 23.04 KN-m
C. 92.16 KN-m
D. 11.76 KN-m
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