Structural Steel Design (6th Edition)
6th Edition
ISBN: 9780134589657
Author: Jack C. McCormac, Stephen F. Csernak
Publisher: PEARSON
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Chapter 3, Problem 3.20PFS
To determine
The effective net area of the given section using the U value.
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Determine the net area of the 3/8 x 8-plate shown in Fig. 3.2.The plate is connected at its end with two lines of 3/4-in bolts.
Compute the net area of each of the given members.
A pair of Ls 4 x 4 x1/4 with one line of 3/4 Ø bolts in each leg.
1.) Draw the FBD of each section
2.) Compute the bar forces up to member U3L3
3.) Get the Length, Bar Force, and Type of Force and put them in a format of Tabulation.
Chapter 3 Solutions
Structural Steel Design (6th Edition)
Ch. 3 - Prob. 3.1PFSCh. 3 - Prob. 3.2PFSCh. 3 - Prob. 3.3PFSCh. 3 - Prob. 3.4PFSCh. 3 - Prob. 3.5PFSCh. 3 - Prob. 3.6PFSCh. 3 - Prob. 3.7PFSCh. 3 - Prob. 3.8PFSCh. 3 - Prob. 3.9PFSCh. 3 - Prob. 3.10PFS
Ch. 3 - Prob. 3.11PFSCh. 3 - Prob. 3.12PFSCh. 3 - Prob. 3.13PFSCh. 3 - Prob. 3.14PFSCh. 3 - Prob. 3.15PFSCh. 3 - Prob. 3.16PFSCh. 3 - Prob. 3.17PFSCh. 3 - Prob. 3.18PFSCh. 3 - Prob. 3.19PFSCh. 3 - Prob. 3.20PFSCh. 3 - Prob. 3.21PFSCh. 3 - Prob. 3.22PFSCh. 3 - Prob. 3.23PFSCh. 3 - Prob. 3.24PFSCh. 3 - Prob. 3.25PFSCh. 3 - Prob. 3.26PFSCh. 3 - Prob. 3.27PFSCh. 3 - Prob. 3.28PFSCh. 3 - Prob. 3.29PFSCh. 3 - Prob. 3.30PFSCh. 3 - Prob. 3.31PFSCh. 3 - Prob. 3.32PFSCh. 3 - Prob. 3.33PFSCh. 3 - Prob. 3.34PFSCh. 3 - Determine the LRFD design strength and the ASD...Ch. 3 - Prob. 3.36PFSCh. 3 - Prob. 3.37PFS
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- Determine bar force members EB, EC, and DC using method of sections.arrow_forwardCompute the effective net area of the built-up section shown in Fig. P3-19 if the holes are punched for 3/4-in Ø bolts. Assume U = 0.90.arrow_forwardDetermine the effective net area of the W16 x 40 shown in Fig. P3-23. Assume the holes are for 3/4-in Ø bolts.arrow_forward
- An L8 x 4 x 3/4 is used as a tension member, with 7/8-in Ø bolts in each leg at the usual gage location . Two rows of bolts are used in the long leg, and one in the short leg. Determine the minimum stagger, s, necessary so that only two holes need be subtracted in determining the net area.What is the net area?arrow_forwardA W18 × 35 with two holes in each flange and one in the web, all for 7/8-in Ø bolts. Compute the net area of each of the given members. (Ans. 8.30 in^2)arrow_forwardCompute the net area of each of the given members. An L8 x 4 x 3/4 with two lines of Ø bolts in the long leg and one line ofØ bolts in the short leg.arrow_forward
- Compute the effective net area of the built-up section shown in the figure if the holes are punched for 3/4-in Ø bolts. Assume U=0.90. (Ans. 20.18 in^2)arrow_forwardAn is used as a tension member, with 7/8-in Ø bolts in each leg atthe usual gage location (see Table 3.1). Two rows of bolts are used in the long leg,and one in the short leg. Determine the minimum stagger, s, necessary so that onlytwo holes need be subtracted in determining the net area. What is the net area?arrow_forwardAn L6 × 6 × 1/2 is used as a tension member, with one gage line of 3/4-in Ø bolts in each leg at the usual gage location (see Table 3.1). What is the minimum amount of stagger, s, necessary so that only one bolt need be subtracted from the gross area of the angle? Compute the net area of this member if the lines of holes are staggered at 3 in. (Ans. s=4.77 in, An = 5.05 in^2)arrow_forward
- A=7B=7D=2C=5E=8F=4 Determine the total area (mm2) of the given section. ( Locate the centroid (mm) of the section from the toparrow_forwardDetermine the LRFD design strength and the ASD allowable strength . Neglect block shear. A W8 x 40 of A992 steel having two lines of 3/4-in Ø bolts in each flange.There are 3 bolts in each line, 4 in on center.arrow_forwardPLEASE DRAW COMPLETE FBD for each bar force member, and the change of direction. Using the method of sections, determine the bar force members EB, EC, and DC.arrow_forward
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