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 3, Problem 3.7.4P
To determine
The size of threaded rod using load and resistance factor design method.
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The steel tie bar shown is to be designed to carry a tension force
of magnitude P = 120KN when bolted between double brackets
at A and B. The bar will be fabricated from 20-mm-thick plate
stock. For the grade of steel to be used, the maximum allowable
stresses are: o = 180 MPa, t = 120 MPa, op = 380 MPa. Design the
tie bar by determining the required values of:
a. the diameter d of the bolt,
b. the dimension b at each end of the bar,
c. the dimension h of the bar.
The truss below is pin connected at A and E, and is acted on by the forces shown.
E
A
D
B
Identify all of the ZERO-FORCE MEMBERS by checking the boxes below (if there are
none, leave all boxes unchecked):
BF
AF
BC
BH
CD
EG
-GH
AB
CH
DG
DH
DE
-FH
A PL40 mm X 250 mm (smaller member) is connected to a gusset plate (bigger member) as shown.
The diameter of the holes are 25 mm. The pitch and gage of the holes are 50 mm and 75 mm,
respectively. The yield strength of the steel is 260 MPa while the ultimate tensile strength of the
steel is 400 MPa. Determine the design (LRFD) tensile strength of the tension member in kN.
Neglect block shear.
H
FO
E.
• D
A
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Chapter 3 Solutions
Steel Design (Activate Learning with these NEW titles from Engineering!)
Ch. 3 - Prob. 3.2.1PCh. 3 - Prob. 3.2.2PCh. 3 - Prob. 3.2.3PCh. 3 - Prob. 3.2.4PCh. 3 - Prob. 3.2.5PCh. 3 - Prob. 3.2.6PCh. 3 - Prob. 3.3.1PCh. 3 - Prob. 3.3.2PCh. 3 - Prob. 3.3.3PCh. 3 - Prob. 3.3.4P
Ch. 3 - Prob. 3.3.5PCh. 3 - Prob. 3.3.6PCh. 3 - Prob. 3.3.7PCh. 3 - Prob. 3.3.8PCh. 3 - Prob. 3.4.1PCh. 3 - Prob. 3.4.2PCh. 3 - Prob. 3.4.3PCh. 3 - Prob. 3.4.4PCh. 3 - Prob. 3.4.5PCh. 3 - Prob. 3.4.6PCh. 3 - Prob. 3.5.1PCh. 3 - Prob. 3.5.2PCh. 3 - Prob. 3.5.3PCh. 3 - Prob. 3.5.4PCh. 3 - Prob. 3.6.1PCh. 3 - Prob. 3.6.2PCh. 3 - Prob. 3.6.3PCh. 3 - Select an American Standard Channel shape for the...Ch. 3 - Prob. 3.6.5PCh. 3 - Use load and resistance factor design and select a...Ch. 3 - Select a threaded rod to resist a service dead...Ch. 3 - Prob. 3.7.2PCh. 3 - Prob. 3.7.3PCh. 3 - Prob. 3.7.4PCh. 3 - Prob. 3.7.5PCh. 3 - Prob. 3.7.6PCh. 3 - Prob. 3.8.1PCh. 3 - Prob. 3.8.2PCh. 3 - Prob. 3.8.3PCh. 3 - Prob. 3.8.4PCh. 3 - Prob. 3.8.5P
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- A W14X120 is used as a tension member in atruss. The flanges of the member are connected to a gusset plate by ¾ inch boltas shown below. Use A36 steel with Fy=36 ksi and Fu=58 ksi Determine the Yielding Capacity of the section based on LRFD (kips) Determine the Tensile Rupture capacity of the section based on LRFD Determine the Demand to Governing Capacity Ratio (based on yielding and rupture only) if the Demand load carried by the section are DL=200 kips LL=400 kips use LRFDarrow_forward3.8-4 Design the tension members of the roof truss shown in Figure P3.8-4. Use double-angle shapes throughout and assume 8-inch-thick gusset plates and welded connections. Assume a shear lag factor of U = 0.85. The trusses are spaced at 25 feet. Use A572 Grade 50 steel and design for the following loads. Metal deck: 4 psf of roof surface Build-up roof: 12 psf of roof surface Purlins: 6 psf of roof surface (estimated) Snow: 18 psf of horizontal projection Truss weight: 5 psf of horizontal projection (estimated) a. Use LPER htp://www.jamarana.com b. Use ASD. 8' 8 @ 10' = 80' FIGURE P3.8-4 wwwarrow_forwardACTIVITY The figure shows a roof truss and the detail of the connection at joint B. Members BC and BE are angle sections with thickness shown in the figure. The working stresses are 70MPa for shear in rivet and 140MPa for bearing stress due to the rivets. How many 19-mm diameter rivets are required to fasten the said members to the gusset plate? K.R.R.P. wwwwwwww 00 400 4m B 3m C 96KN 4m 6m 200KN E Am 3m F 96KN 4m H DETAIL OF JOINT B 75X75X6 mm ------------- · ET---- I 14 mm thick GUSSET PLATE P BC 75X75X13 mm P BEarrow_forward
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