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 7, Problem 7.7.1P
To determine
(a)
The number of bolts required using LRFD.
To determine
(b)
The number of bolts required using ASD.
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Problem. A bolted connection shown consists of two plates 300 mm x 12 mm
connected by 4 - 22 mm diameter bolts.
12 mm bolts
t=12 mm
t=12 mm
P.
P-
P 300
75
75
75
Edge distances -75 mm
dhole for tensile and rupture d, +3 mm
dnole for bearing strength for L- de +1.5 mm
Fy 248 MPa
F.- 400 MPa
Solve
An ISA 125 x 75 x 8 is welded with the flange of a
column ISHB 300. The bracket carries a factored
load of 75 kN at a distance of 38 mm as shown in
figure. Design the connection. Use Fe410 grade
steel. Field weld is used.
250
125
125
ISHB 300
38 75kN
300
Flange width of ISHB 300 = 250 mm.
-ISA 125 x 75 x 8
A tension connection consists of A36 steel double angles (two L4x4x1/4 shapes, or 2L4x4x1/4)
fastened to a 4x10 No. 2 Red Oak member with a single row of four 0.875 inch A307 bolts.
The connection is subjected to normal temperatures but wet in-service conditions. Assume
the group action factor is C,=0.95 and the geometry factor is Ca=1. The controlling ASD
load combination is D+ L where L is from occupancy.
Elevation
Cross Section
L4x4x1/4
L4x4x1/4
Pa
Р.
2L4x4x1/4
4х10
4x10
Plan
L4x4x1/4
Pa/2
Pa
4x10
L4x4x1/4
Pa/2
• Determine the load, Pa, that the connection can support based on tension strength of
the 4x10.
Pa=.
lb
• Determine the load, Pa, that the connection can support based on gross tension yield
of the double angles. The ASD design strength for gross tension yield is F,A,/1.67
where F=36 ksi, A,=1.93 in² for each L4x4x1/4.
Pa=.
lb
Chapter 7 Solutions
Steel Design (Activate Learning with these NEW titles from Engineering!)
Ch. 7 - Prob. 7.3.1PCh. 7 - Prob. 7.3.2PCh. 7 - Prob. 7.4.1PCh. 7 - Prob. 7.4.2PCh. 7 - Prob. 7.4.3PCh. 7 - Prob. 7.4.4PCh. 7 - Prob. 7.4.5PCh. 7 - Prob. 7.4.6PCh. 7 - Prob. 7.6.1PCh. 7 - Prob. 7.6.2P
Ch. 7 - Prob. 7.6.3PCh. 7 - Prob. 7.6.4PCh. 7 - Prob. 7.6.5PCh. 7 - Prob. 7.6.6PCh. 7 - Prob. 7.7.1PCh. 7 - Prob. 7.7.2PCh. 7 - Prob. 7.7.3PCh. 7 - Prob. 7.8.1PCh. 7 - Determine the adequacy of the hanger connection in...Ch. 7 - Prob. 7.9.1PCh. 7 - Prob. 7.9.2PCh. 7 - Prob. 7.9.3PCh. 7 - Prob. 7.9.4PCh. 7 - Prob. 7.9.5PCh. 7 - Prob. 7.11.1PCh. 7 - Prob. 7.11.2PCh. 7 - Prob. 7.11.3PCh. 7 - Prob. 7.11.4PCh. 7 - Prob. 7.11.5PCh. 7 - Prob. 7.11.6PCh. 7 - Prob. 7.11.7PCh. 7 - Prob. 7.11.8PCh. 7 - Prob. 7.11.9PCh. 7 - Prob. 7.11.10P
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