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ELASTIC STIFFNESS OF COLUMN BASE
Code: Eurocode 3
The initial elastic stiffness in rotation of the column base:
● Forces on column base:
● Geometry:
● Stiffnesses:
E: Modulus of steel E = 210000 MPa
The bolt stiffness coefficient for the component method is defined as:
where:
350mm 1.80 mm
0.092 rad
2,714 kNm/rad
Classification of column base for Sway frame columns:
Steel column:
Moment of inertia: 3.23E+08
267,418 kNm/rad >
Φ: the column base rotation:
zt,l = zc,r =
Lb: length of anchor bolts Lb =
→ kt,l = kc,r =
→ Φ =
→ sj.ini =
Lc =
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�_�=� (�/ �_� )=2 �_�/�_�
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Joint type: SEMI RIGID (Almost pinned)