Figure (a) shows the cross section of a column that uses a structural shape known as W8 x 67 (wide-flange beam, nominally 8 in. deep, weighing 67 lb/ft). The American Institute of Steel Construction Structural Steel Handbook lists the following cross-sectional properties: A = 19.7 in?, Figure (b) shows the cross-sectional dimensions for the structural steel section known as C10 x 20 (channel with a nominal depth of 10 in., weighing 20 lb/ft). The American Institute of Steel Construction Structural Steel Handbook lists the following properties for the cross section: A = 5.88 in?, If a W8 x 67 section is joined to a C10 x 20 section to form a structural member that has the cross section shown in Figure (c), a. Locate the centroid of the built-up section in the Figure (c). b. Calculate the centroidal moments of inertia, I, and I, for this cross 1, = 272 in*, and !y = 88.6 tn. , = 78.9 in*, and ly = 2.81 in*. section.

Structural Analysis
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ISBN:9781337630931
Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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0.933 in.
-0606 in.
Web -
9 in.
-0.575 in.
10 in.
- Flange
– 0.379 in
-8.287 in.-
Figure (a)
y
2.739 in.
Figure (b)
Figure (c)
Transcribed Image Text:0.933 in. -0606 in. Web - 9 in. -0.575 in. 10 in. - Flange – 0.379 in -8.287 in.- Figure (a) y 2.739 in. Figure (b) Figure (c)
Figure (a) shows the cross section of a column that uses a structural shape
known as W8 × 67 (wide-flange beam, nominally 8 in. deep, weighing 67 lb/ft).
The American Institute of Steel Construction Structural Steel Handbook lists
the following cross-sectional properties:
A = 19.7 in?,
Figure (b) shows the cross-sectional dimensions for the structural steel section
known as C10 × 20 (channel with a nominal depth of 10 in., weighing 20 lb/ft).
The American Institute of Steel Construction Structural Steel Handbook lists
= 272 in*, and
1, = 88.6 in*.
the following properties for the cross section:
A = 5.88 in?,
If a W8 x 67 section is joined to a C10 x 20 section to form a structural member
that has the cross section shown in Figure (c),
a. Locate the centroid of the built-up section in the Figure (c).
b. Calculate the centroidal moments of inertia, I, and I, for this cross
I, = 78.9 in*, and
I, = 2.81 in“.
section.
Transcribed Image Text:Figure (a) shows the cross section of a column that uses a structural shape known as W8 × 67 (wide-flange beam, nominally 8 in. deep, weighing 67 lb/ft). The American Institute of Steel Construction Structural Steel Handbook lists the following cross-sectional properties: A = 19.7 in?, Figure (b) shows the cross-sectional dimensions for the structural steel section known as C10 × 20 (channel with a nominal depth of 10 in., weighing 20 lb/ft). The American Institute of Steel Construction Structural Steel Handbook lists = 272 in*, and 1, = 88.6 in*. the following properties for the cross section: A = 5.88 in?, If a W8 x 67 section is joined to a C10 x 20 section to form a structural member that has the cross section shown in Figure (c), a. Locate the centroid of the built-up section in the Figure (c). b. Calculate the centroidal moments of inertia, I, and I, for this cross I, = 78.9 in*, and I, = 2.81 in“. section.
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