Where it get the value 2 and 10 for the green circle? Please expl

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
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Where it get the value 2 and 10 for the green circle? Please expl

 

A rectangular beam with b = 270 mm, d = 500 mm is provided with 10
mm vertical stirrups with fy = 276 MPa. Assuming fc' = 21 MPa;
a) Determine the required spacing if V₁ = 35 kN
b) Determine the required spacing if V₁ = 92 kN
c) Determine the required spacing if V₁ = 236 kN
d) Determine the required spacing if V₁ = 473 kN
Solution
Shear carried by concrete
V = 0.17 A√√fe'b d
V = 0.17 (1) √√21(270)(500) = 105,170 N
OV
С
2
0.75(105170)
2
= 39,439 N
Transcribed Image Text:A rectangular beam with b = 270 mm, d = 500 mm is provided with 10 mm vertical stirrups with fy = 276 MPa. Assuming fc' = 21 MPa; a) Determine the required spacing if V₁ = 35 kN b) Determine the required spacing if V₁ = 92 kN c) Determine the required spacing if V₁ = 236 kN d) Determine the required spacing if V₁ = 473 kN Solution Shear carried by concrete V = 0.17 A√√fe'b d V = 0.17 (1) √√21(270)(500) = 105,170 N OV С 2 0.75(105170) 2 = 39,439 N
a) V₁ = 35000 N <-
b)
V₁ =92000 N
U
V
V₁ = " -V₁
V. =
S
A,
=
92000
0.75
27 (10)²
4
QV c
2
A, f,d
S =
V.
S
Stirrups not necessary
- 105170 = 17496.67 N
=157.1mm²
157.1( 276 )500
17496.67
= 1239 .08 mm
Transcribed Image Text:a) V₁ = 35000 N <- b) V₁ =92000 N U V V₁ = " -V₁ V. = S A, = 92000 0.75 27 (10)² 4 QV c 2 A, f,d S = V. S Stirrups not necessary - 105170 = 17496.67 N =157.1mm² 157.1( 276 )500 17496.67 = 1239 .08 mm
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