9.13 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 Ib/ft). The American Institute of Steel Construction Structural Steel Handbook lists the following cross-sectional properties: A= 19.7 in.², Ī̟=272 in.“, and I, = 88.6 in.“ Determine the dimensions of the rectangle in Fig. (b) that has the same Iz and Iy as a W8 × 67 section. 0.933 in. Web. 9 in. -0.575 in. -Flange -8.287 in.- (a) (b) Fig. P9.13-P9.15 9.14 Compute the dimensions of the rectangle shown in Fig. (b) that has the same k, and ky as the W8 x 67 section in Fig. (a). (See Prob. 9.13 for properties of W8 x 67.) Answer: b = 7.35 in. h = 12.87 in.
9.13 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 Ib/ft). The American Institute of Steel Construction Structural Steel Handbook lists the following cross-sectional properties: A= 19.7 in.², Ī̟=272 in.“, and I, = 88.6 in.“ Determine the dimensions of the rectangle in Fig. (b) that has the same Iz and Iy as a W8 × 67 section. 0.933 in. Web. 9 in. -0.575 in. -Flange -8.287 in.- (a) (b) Fig. P9.13-P9.15 9.14 Compute the dimensions of the rectangle shown in Fig. (b) that has the same k, and ky as the W8 x 67 section in Fig. (a). (See Prob. 9.13 for properties of W8 x 67.) Answer: b = 7.35 in. h = 12.87 in.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:9.13 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 Ib/ft). The American Institute of Steel Construction Structural Steel Handbook
lists the following cross-sectional properties: A= 19.7 in.?, ī,=272 in.“, and
Îy = 88.6 in. Determine the dimensions of the rectangle in Fig. (b) that has the
same I; and īy as a W8 x 67 section.
0.933 in.
Web.
9 in.
-0575 in.
-Flange
-8.287 in.-
(a)
(b)
Fig. P9.13-P9.15
9.14 Compute the dimensions of the rectangle shown in Fig. (b) that has the
same k, and ky as the W8 x 67 section in Fig. (a). (See Prob. 9.13 for properties
of W8 x 67.)
Answer:
b = 7.35 in.
h = 12.87 in.
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