Determine the factored moment for the doubly-reinforced rectangular beam section shown in Figure. Use fc’ =30 MPa and assume that the rebars used are Grade 40 bars.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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Determine the factored moment for the doubly-reinforced rectangular beam section shown in Figure. Use fc’ =30 MPa and assume that the rebars used are Grade 40 bars.

450 mm
00
250 mm
O
° ° °
As' = 3-20 mm dia
As = 6 - 25 mm dia
60
80
Transcribed Image Text:450 mm 00 250 mm O ° ° ° As' = 3-20 mm dia As = 6 - 25 mm dia 60 80
Mechanical Properties
Steel
Grade
Grade 40
[280]
Grade 60
[420]
Grade 75
[520]
Grade 80
[550]
Grade 100
[690]
Tensile
Strength
Psi [MPa]
60 000 [420]
90 000 [620]
100 000 [690]
105 000 [725]
115 000 [790]
Yield Strength
Psi [MPa]
40 000 [280]
60 000 [420]
75 000 [520]
80 000 [550]
100 000 [690]
Transcribed Image Text:Mechanical Properties Steel Grade Grade 40 [280] Grade 60 [420] Grade 75 [520] Grade 80 [550] Grade 100 [690] Tensile Strength Psi [MPa] 60 000 [420] 90 000 [620] 100 000 [690] 105 000 [725] 115 000 [790] Yield Strength Psi [MPa] 40 000 [280] 60 000 [420] 75 000 [520] 80 000 [550] 100 000 [690]
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