Column - Foundation Connection (Stiffened Base Plate) Design

Column-Foundation Connection or Stiffened Base Plate Connection is formed by connecting the base plate welded to the steel column and anchored to the concrete foundation (column). Stiffened base plate design is made automatically according to the Design, Calculation and Construction Principles of Steel Structures (ÇYTHYEDY) (GKT and YDKT) and AISC 360-16 (ASD and LRFD) regulations. In the stiffened base plate connection calculation, bolt, weld and plate controls, geometry controls and strength controls are made automatically in accordance with the steel connection type.

In the calculation of the stiffened base plate connection, the horizontal and vertical bolt distances and the distance between the bolts are controlled under the geometry control. In the strength control, base plate thickness, anchor pulling breakage, anchor rod peeling, anchor rod shearing, plate bolt hole controls are made.

Geometry Checks

Bolt Spacing

Horizontal Edge Distance

Vertical Edge Distance

Strength Checks

Base Plate Thickness (Bearing)

fc	25000 kN/m2
A 1
A 2
qmax
fp(max)
fp(max)
e
e crit
Y
Y
f
le	45 mm
l
m
n
h	650 mm
b	300 mm
N	900 mm
B	500 mm
M	365.17 kNm
P	739.22 kN
F y	355 N/mm2
t req		AISC DG-1-2 nd 3.3.15.a

Base Plate Thickness (Tension)

fc	25000 kN/m2
A 1
A 2
qmax
e
e crit
T
Y
Y
f
x
le	45 mm
m
h	650 mm
N	900 mm
B	500 mm
M	365.17 kNm
P	739.22 kN
F y	355 N/mm2
t req		AISC DG-1-2 nd 3.4.7a

Anchor Rod Tensile Rupture

A b
Fn	750000 kN/m2
Rn
ΦRn

Anchor Rod Concrete Pullout

Ψ	1.0	ACI 318M-08 D.5.3.6
N p		ACI 318M-08 (D-15)
A bgr	7401.592 mm2
fc	25000 kN/m2
Rn		ACI 318M-08 (D-14)
ΦRn

Anchor Rod Shear

A b
Fn
Rn
ΦRn

Bolt Bearing on Plate

d h	24+2=26 mm
Lc,edge
Rn		ÇYTHYEDY 13.3.13 Equation 13.14a and13.14b
Rn-edge
Rn
ΦRn