65562602

(Reinforced Concrete Design)

Phakin Loyjaroen Reinforced Concrete Design

1 2552 .

5 (Bond, Anchorage and Development Length)

(Bond)

(Anchorage)

(Development Length)

(Bond)

(Bond)

(Bond Stresses in Beam)

(Bond)

()

(Bond)

(Bond)

(Allowable Bond Strength)

22.29

25 ./ .c

a

b

fkg cm

d

23.23

35 ./ .c

a

b

fkg cm

d

21.72 28 ./ .a cf kg cm

(Bond)

(Bond)

(Nominal Bond Strength)

24.51

39.4 ./ .c

a

b

fkg cm

d

26.39

56.2 ./ .c

a

b

fkg cm

d

23.44

56.2 ./ .c

a

b

fkg cm

d

17.6 ./.2

(Development Length)

= dl l

(Development Length)

1. (Embedment length)2. (Bar Hook)3. (Mechanical anchorage)4. (Chemical bonding)

(Development Length)

(Anchorage)

(Anchorage)

(Anchorage)

(Anchorage)