Figure (a) shows the cross-sectional dimensions of a structural steel section known as C-channel with a nominal depth of 100mm. The following are properties for the cross section: A = 588 mm² , I =78.9 × 104 mm4, and y =2.81 x 104 mm4. If two of these channels are welded together as shown in Fig. (b), find Iỵ and l, for the resulting cross section.
Figure (a) shows the cross-sectional dimensions of a structural steel section known as C-channel with a nominal depth of 100mm. The following are properties for the cross section: A = 588 mm² , I =78.9 × 104 mm4, and y =2.81 x 104 mm4. If two of these channels are welded together as shown in Fig. (b), find Iỵ and l, for the resulting cross section.
Chapter2: Loads On Structures
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Transcribed Image Text:Question Bank – Moment of Inertia
Figure (a) shows the cross-sectional
dimensions of a structural steel section known
6.06 mm
as C-channel with a nominal depth of 100mm.
The following are properties for the cross
section: A = 588 mm2 , I, =78.9 × 104 mm4, and
Iy =2.81 x 104 mm4. If two of these channels are
welded together as shown in Fig. (b), find I
and l, for the resulting cross section.
100 mm
%3D
3.79 mm
27.39 mm
(a)
(b)
Find Ix ONLY:
O 1578000 mm^4
O 1758000 mm^4
O 9940000 mm^4
O 99400 mm^4
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