T

()

401-96 0.65

()0.67/0.75=0.89(401-96)

:()0.67/0.75=0.89

* 3 1.25~1.5

Ld(Lst+1.5(W/2))

161.515 () 7.5cm()

*()

+

9.3.3 1. 2. 3.

9.6.2

1=23=

LdLd3m3m

=10 tfW20 tf=10 tfW1 tfLdF=Ma

LdLdh

a=

The diagonal bars shall be embedded into the wall not less than 1.25 times the development length for fy in tension.(ACI318-08)

152

()

()

()

1234

1 2

1 ?2?3 ?4, ,

0,

B1FL1FLBS

0,=1 ?2?3 ?4, ,

(ACI318-08)(ACI318-08)(401-96)

,

M dia. ()M dia. ()

123

123

1 2 3

(15.6.1.3)

ACI 318-08 Depth too large? Ref. : Ehsani, M. R., Behavior of Exterior Reinforced Concrete Beam to Column Connections Subjected to Earthquake Type Loading, ACI Journal, Proceedings V.82, No. 4, July-Aug. 1985, pp. 492-499

AIJ 1999 NCREE-UBC-PEER project (2009)AIJ Guideline 1999

A

O

O

}n

?

6.2.6( ) 1.4y6.2.12() : 1.141.21234 (a) (b) 25%1.141.241.4y

Ld

LdLd

123

T

st

t

Y