Steel Design (Activate Learning with these NEW titles from Engineering!)
6th Edition
ISBN: 9781337094740
Author: Segui, William T.
Publisher: Cengage Learning
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Question
Chapter 4, Problem 4.3.6P
To determine
(a)
The design strength for LRFD and allowable strength for ASD.
To determine
(b)
The design strength for LRFD and allowable strength for ASD.
Expert Solution & Answer
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Please do right answer and calculation.
7
7a
7b
7c
Alaterally supported beam was designed for flexure. The beam is safe for shear & deflection. The most economical
section is structural tubing however the said section is not readily available at the time of the construction. If you
are the engineer in charge of the construction what alternative section will be the best replacement? Why?
The section is 8" x 8" x 7.94 mm thick:
Use Fy=248 MPa: E=200,000 MPa
AISC
wall thickness
Ix 106
S x 103
Jx 103
mm4
mm3
mm4
rx =ry
Area
Ag (mm2) mm
Designation
Weight/m
8x8
7.94
47.36
6,039
79.25
37.84
371.99
60.35
expla'n briefly your cho'ce. (transform your comparative analys's 'nto a narative form to support your cho'ce)
8x8
14.29
80.61
10,258
76.2
59.52
585.02
99.06
8x8
72.7
9,290
76.96
54.53
539.13
90.32
8x8
9.53 56.09
7,161
78.48
44.12
432.62
70.76
mm
12.7
Zx 103
mm3
437.53
714.48
650.57
512.92
4. Calculate the design strength (ocPn) of W24X76 with length of 12 ft. and
pinned ends. A572 Grade50 steel is used. E=29x103 ksi. Show your work in
detail.
ASTM
Classification
A36
A572 Grade 50
A992 Grade 50
A500 Grade B
(HSS rect, sq)
A500 Grade B
(HSS round)
A53 Grade B
Yield
Strength
F, (ksi)
36
50
50
46
42
35
Ultimate
Strength
F (ksi)
58
65
65
58
58
60
Chapter 4 Solutions
Steel Design (Activate Learning with these NEW titles from Engineering!)
Ch. 4 - Prob. 4.3.1PCh. 4 - Prob. 4.3.2PCh. 4 - Prob. 4.3.3PCh. 4 - Prob. 4.3.4PCh. 4 - Prob. 4.3.5PCh. 4 - Prob. 4.3.6PCh. 4 - Prob. 4.3.7PCh. 4 - Prob. 4.3.8PCh. 4 - Prob. 4.4.1PCh. 4 - Prob. 4.4.2P
Ch. 4 - Prob. 4.6.1PCh. 4 - Prob. 4.6.2PCh. 4 - Prob. 4.6.3PCh. 4 - Prob. 4.6.4PCh. 4 - Prob. 4.6.5PCh. 4 - Prob. 4.6.6PCh. 4 - Prob. 4.6.7PCh. 4 - Prob. 4.6.8PCh. 4 - Prob. 4.6.9PCh. 4 - Prob. 4.7.1PCh. 4 - Prob. 4.7.2PCh. 4 - Prob. 4.7.3PCh. 4 - Use A992 steel and select a W14 shape for an...Ch. 4 - Prob. 4.7.5PCh. 4 - Prob. 4.7.6PCh. 4 - Prob. 4.7.7PCh. 4 - The frame shown in Figure P4.7-8 is unbraced, and...Ch. 4 - Prob. 4.7.9PCh. 4 - Prob. 4.7.10PCh. 4 - Prob. 4.7.11PCh. 4 - Prob. 4.7.12PCh. 4 - Prob. 4.7.13PCh. 4 - Prob. 4.7.14PCh. 4 - Prob. 4.8.1PCh. 4 - Prob. 4.8.2PCh. 4 - Prob. 4.8.3PCh. 4 - Prob. 4.8.4PCh. 4 - Prob. 4.9.1PCh. 4 - Prob. 4.9.2PCh. 4 - Prob. 4.9.3PCh. 4 - Prob. 4.9.4PCh. 4 - Prob. 4.9.5PCh. 4 - Prob. 4.9.6PCh. 4 - Prob. 4.9.7PCh. 4 - Prob. 4.9.8PCh. 4 - Prob. 4.9.9PCh. 4 - Prob. 4.9.10PCh. 4 - Prob. 4.9.11PCh. 4 - Prob. 4.9.12P
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