Structural Steel Design (6th Edition)
6th Edition
ISBN: 9780134589657
Author: Jack C. McCormac, Stephen F. Csernak
Publisher: PEARSON
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Chapter 4, Problem 4.9PFS
To determine
The lightest section of
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Select the lightest section for each of the situations described in the table. Assume that bolts are 3in on center. Do not consider block shear. Determine U from Table 3.2.
Determine the effective net area of the W16 x 40 shown in Fig. P3-23. Assume the holes are for 3/4-in Ø bolts.
Compute 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.
Chapter 4 Solutions
Structural Steel Design (6th Edition)
Ch. 4 - Prob. 4.1PFSCh. 4 - Prob. 4.2PFSCh. 4 - Prob. 4.3PFSCh. 4 - Prob. 4.4PFSCh. 4 - Prob. 4.5PFSCh. 4 - Prob. 4.6PFSCh. 4 - Prob. 4.7PFSCh. 4 - Prob. 4.8PFSCh. 4 - Prob. 4.9PFSCh. 4 - Prob. 4.10PFS
Ch. 4 - Prob. 4.11PFSCh. 4 - Prob. 4.12PFSCh. 4 - Prob. 4.13PFSCh. 4 - Prob. 4.14PFSCh. 4 - Prob. 4.15PFSCh. 4 - Prob. 4.16PFSCh. 4 - Prob. 4.17PFSCh. 4 - Prob. 4.18PFSCh. 4 - Prob. 4.19PFSCh. 4 - Prob. 4.20PFSCh. 4 - Prob. 4.21PFSCh. 4 - Prob. 4.22PFSCh. 4 - Prob. 4.23PFSCh. 4 - Prob. 4.24PFSCh. 4 - Prob. 4.25PFSCh. 4 - Prob. 4.26PFS
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- Determine the net area W12 x 16 1Ag = 4.71 in 22 of the shown in Fig. 3.7, assuming that the holes are for 1-in bolts.arrow_forwardDetermine the LRFD design strength and the ASD allowable strength . Neglect block shear. A C9 x 20 (Fy = 36 ksi, Fu = 58 ksi) with 2 lines of 7/8-in Ø bolts in the web as shown in Fig. P3-31.arrow_forwardDetermine the LRFD design strength and the ASD allowable strength . Neglect block shear. A W18 x 40 consisting of A992 steel and having two lines of 1-in Ø bolts in each flange. There are 4 bolts in each line, 3 in on center.arrow_forward
- Determine the LRFD design strength and the ASD allowable strength of the sections given, including block shear. A C9 x 15 (A36 steel) with 2 lines of 3/4-in Ø bolts in the web as shown in Fig. P3-36.arrow_forwardCompute the net area. The plate 7/8 x 14 shown in Fig. P3-11. The holes are for 7/8-in Ø bolts.arrow_forwardCompute the net area of each of the given members (Use standard-size bolt holes for all problemsarrow_forward
- The L7 x 4 x 1/2 single angle has two lines of bolts in the long leg as shown (See Figure). The U value for this section is : A)0.935 B)0.923 C)0.887 D)0.765arrow_forwardCompute the net area. The tension member shown in Fig. P3-13 contains holes for 3/4-in Ø bolts. At what spacing, s, will the net area for the section through one hole be the same as a rupture line passing though two holes?arrow_forwardAn L 175 x 175 x 20 is used a tension member, with one gage line of 22 mm bolts in each leg at the usual gage location (where g=100 mm). 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 90 mm.arrow_forward
- Homework 10-1: Compute the net area of each of the given members. Use standard-size bolt holes for all problems. (A = 1.93 in2)arrow_forwardDetermine the LRFD design strength and the ASD allowable strength of sections given. Neglect block shear. A W18 × 40 consisting of A992 steel and having two lines of 1-in Ø bolts in each flange. There are 4 bolts in each line, 3 in on center. (Ans. LRFD 391.1 k, ASD 260.7 k)arrow_forwardDetermine the load capacity of the angle used as a tension member shown below. The bolts used are for 19 mm diameter bolts. Use A36 steel and standard gage distance for angles. Use NSCP 2015 provisions. Neglect block shear.arrow_forward
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