Table S

z/dfor singly reinforced rectangular sections

Table 6

Minimum percentage of required reinforcement

K

I z/d

K

z/d

<0.05

II0 950a

0.13

H 0.868

0.06

II 0.944

J 0.14

||0.856

0.07

II 0.934

10.15

H 0.843

0.08

II 0.924

J 0.16

II 0.830

0.09

II 0.913

J 0.17

II 0.816

0.10

II 0.902

J 0.18

II 0.802

0.11

H 0.891

J 0.19

||0.787

0.12

H 0.880

|0.20

||o.771

Key a Limitingz to 0.95d is not a requirement of Eurocode 2, but is considered to be go<

Minimum percentage of required reinforcement

fck

fctm

Minimum percentage (0.26fctm/fyka)

25

2.6

0.13%

28

2.8

0.14%

30

2.9

0.15%

32

3.0

0.16%

35

3.2

0.17%

40

3.5

0.18%

45

3.8

0.20%

50

4.1

0.21 %

Key a Assuming/yk

= 500 MPa

s,min

Figure 4

Strut inclination method

Concrete strut in compression

Pi

,—

Í—I

.—

o

/

i

—1 v

•J

Longitudinal Vertical shear reinforcement in tension reinforcement

Longitudinal Vertical shear reinforcement in tension reinforcement

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