interaction diagram of steel column protect
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columnTRANSCRIPT
Interaction Diagram of Steel Column (By Ryan Rakhmat Setiadi, ST)
Unit : N-mm
Outside height (H) = 250 mmFlange width (Bf) = 125 mmWeb thickness (tw) = 7 mmFlange thickness (tf) = 9 mmRadius ( r ) = 12 mmUnbraced length (Lb) = 10000 mmEffective length factor (K) = 1
Material Data
Fy = 240 MPa E = 200000 MpaFu = 400 MPa
Section Properties
Ag = 3998 mm2 Sx = 3.3E+05 mm3Aw = 1750 mm2 Sy = 4.7E+04 mm3
Ix = 4.2E+07 mm4 Zx = 3.8E+05 mm4Iy = 2.9E+06 mm4 Zy = 7.4E+04 mm4rx = 102 mm J = 87275 mm4ry = 27 mm
Torsional Buckling Data
Cw = 4.3E+10 mm6 Lr = 4503 mmrst = 33 Cb = 1Lp = 1378 mm φm = 0.9
Mn = 1.9 ton-m
Axial Capacity Data
KL/ry = 369 φp = 0.9
136 Pn = 4.7 ton
Limitation :- Not consider Local Buckling Effect
4.71√( /𝐸) =𝐹𝑦
0.00 0.50 1.00 1.50 2.00 2.500.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
4.50
5.00
Pn-Mn Steel Column 250x125x7x9
Mn (Ton-m)
Pn (T
on-m
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