aisc research program - UIUC Newmark Structural Engineering ...

Shear Connector Provisions: Cyclic
Reduction factor by cyclic loading (ξ):
AISC 341-05 0.75
ACI 318-05
ACI 318-08 0.30
NEHRP (2003) 0.75
Klingner et al. (1982) 0.50*,**
Hawkins and Mitchell (1984)
ξ
0.75
0.83*
0.71**
Makino (1985) 0.50
Gattesco and Giuriani (1996) 0.90*
-*: faliure of the stud
-**: failure of the concrete
φ ⋅ R = ξ ⋅φ
⋅ R
University of Illinois at Urbana-Champaign
13 November 2007
c
Civjan and Singh (2003)
m
R c : cyclic resistance
R m : monotonic resistance
Bursi and Gramola (1999) 0.68 *,**
Zandonini
EC-4 0.75*,**
and Bursi (2002) AISC 0.55*,**
-*: faliure of the stud
-**: failure of the concrete
ξ
0.60 *, **