A rectangular beam with a width of 300 mm and total depth of 450 mm and reinforced with 4- 25 mm dia. bars with concrete cover to the center of the bar equal to 65 mm. It is loaded with a total dead load of 30.4 kN/m and a live load of 19.4 kN/m and has a simple span of 6.2 m. Use f'c = 30 MPa and fy = 416.3 MPa. Answer the following: (1) Compute the moment of inertia of a cracked transformed section, (2) Determine the instantaneous deflection of the beam, (3) Compute the total deflection after 3 months due to 30% sustained live load. " Use the editor to format your answer Formula, table for item # 1 above. (Mcr ]ler Ma %3D Ма T 1+ 50p' 5 yrs. Or more 12 mos. 2.0 1.4 6 mos. 1.2 3 mos. 1.0

Structural Analysis
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Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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A rectangular beam with a width of 300 mm and total depth of 450 mm and reinforced with 4- 25 mm dia. bars with
concrete cover to the center of the bar equal to 65 mm. It is loaded with a total dead load of 30.4 kN/m and a live load of 19.4 kN/m
and has a simple span of 6.2 m. Use f'c = 30 MPa and fy = 416.3 MPa. Answer the following: (1) Compute the moment of inertia of a
cracked transformed section, (2) Determine the instantaneous deflection of the beam, (3) Compute the total deflection after 3
months due to 30% sustained live load."
Use the editor to format your answer
Formula, table for item # 1 above.
(Mcr
%3D
Ма
Ma
T
1+ 50p'
5 yrs. Or more
12 mos.
2.0
1.4
6 mos.
1.2
3 mos.
1.0
Transcribed Image Text:A rectangular beam with a width of 300 mm and total depth of 450 mm and reinforced with 4- 25 mm dia. bars with concrete cover to the center of the bar equal to 65 mm. It is loaded with a total dead load of 30.4 kN/m and a live load of 19.4 kN/m and has a simple span of 6.2 m. Use f'c = 30 MPa and fy = 416.3 MPa. Answer the following: (1) Compute the moment of inertia of a cracked transformed section, (2) Determine the instantaneous deflection of the beam, (3) Compute the total deflection after 3 months due to 30% sustained live load." Use the editor to format your answer Formula, table for item # 1 above. (Mcr %3D Ма Ma T 1+ 50p' 5 yrs. Or more 12 mos. 2.0 1.4 6 mos. 1.2 3 mos. 1.0
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