strain in the tension bars equal to  0.004 and  in the design process use 60% of this rho max.    f’c= 21MPa  and fy=276MPa                                                                      What is the   Mu max  that is to be used in the  design? Determine the required base and effective depth  of the beam.  Round up your answers to the nearest 10mm  and use 2b=d Determine the most economical number of 20mm diameter bars required.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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 Design the beam  to carry the load as shown in Figure.  Use rho max  with a strain in the tension bars equal to  0.004 and  in the design process use 60% of this rho max.    f’c= 21MPa  and fy=276MPa                                                                     

  1. What is the   Mu max  that is to be used in the  design?
  2. Determine the required base and effective depth  of the beam.  Round up your answers to the nearest 10mm  and use 2b=d
  3. Determine the most economical number of 20mm diameter bars required.
  4. Using the b and d from  letter  (b) determine the balanced As for the  beam.
Fig.I
12KN=PL
8KN/m
LL
LL Y
DL= 10 KN/m
2m
3m
.5m
1.5m
Note: DL= 10KN/m all throuoghw} the span, the other
lbads are
aleady LL.
DL already indlu des the weight f beam .
Transcribed Image Text:Fig.I 12KN=PL 8KN/m LL LL Y DL= 10 KN/m 2m 3m .5m 1.5m Note: DL= 10KN/m all throuoghw} the span, the other lbads are aleady LL. DL already indlu des the weight f beam .
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