Problem 2: Select the lightest C section that will safely support the service tensile loads (Dead Load) Po = 65 k and (Live Load) P = 50 k. The member is assumed to have two lines of holes for 3/4- in Ø bolts in the web. Assume that there are at least three holes in each line 3 in on center. Use A36 steel (F 36 ksi , Fa= 58 ksi). %3D

Problem 2: Select the lightest C section that will safely support the service tensile loads (Dead Load) Po = 65 k and (Live Load) P = 50 k. The member is assumed to have two lines of holes for 3/4- in Ø bolts in the web. Assume that there are at least three holes in each line 3 in on center. Use A36 steel (F 36 ksi , Fa= 58 ksi). %3D

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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SITUATION I A lapped bolted lension member is shown. Diameter of bolts are 22 mm and the plate material is A36 steel Fy = 275 MPа, Fи 3 415 МPа. Assume the fasteners are adequate and do not control the tensile capacity. Diameter of hole is 2.5 mm bigger than the diameter of bolt. 12 :: 350 50 100 100 50 50 1. Determine the tensile capacity of the lapped joint based on gross area. a. 252.656 kN c. 866.250 kN b. 202.125 kN d. 693.000 kN 2. Determine the net Area for the tensile capacity of the lapped joint. а. 3318 тm? c. 5250 mm? b. 1554 mm? d. 1824 mm? 3. Determine the tensile capacity of the lapped joint based on the net area. a. 752.856 kN C. 866.250 kN b. 688.845 kN d. 1039.500 kN
A double-angle shape, 2L7 3 4 3 3⁄8, is used as a tension member. The twoangles are connected to a gusset plate with 7⁄8-inch-diameter bolts throughthe 7-inch legs, as shown in Figure P3.4-5. A572 Grade 50 steel is used.a. Compute the design strength.b. Compute the allowable strength.
Material Strengths: Fy = 248 MPa, F = 400 MPa For the two lines of bolt holes, the pitch is the value that will give a net area DEFG equal to the one along ABC. The diameter of the holes is 22 mm. The thickness of the plate is 12 mm. Determine the LRFD design tensile strength based on yielding on gross area. D A to 50 1 ÓB 50 50 ic O 410 kN O 464 kN O 446 kN O 401 KN F IG Pitch Pitch KISS|Y
a) Compute the allowable block shear strength of the plates in KN. b) Check the adequacy of the plates. c) If W14 x 193 is used, compute the allowable strength (KN) based on fracture of the net section. d) Select the lightest W shape for the tension member. e) What is the allowable block shear strength in KN of the lightest W shape?
1. The tension member shown in Figure 3.4-2 is a PL 58 x 10, and the steel is A36. The bolts are 3/4-inch in diameter. a. Draw the different potential failure lines. b. Compute the effective net area. 22" 2½" 2" 4 3" *₁ 3" ✓ 2" 2. A double-channel shape, 2C10 x 20 steel, Fy = 50 ksi and Fu = 70 ksi, is used for a built-up tension member as shown in the figure. The holes are for 12-inch-diameter bolts. PNA a. Determine the design strength for LRFD. b. Determine the allowable strength for ASD. YD Shape A 2" 2" -X Area, Depth, d | 3²²-|-1 3²² | 00 "There is no elevator to success, you have to take the stairs." - Zig Ziglar God bless. Ⓒ O O O Web Thickness, tw in. in. O 4" C10-30 x25 x20 5.87 10.0 10 0.379 % x15.3 4.48 10.0 10 0.240 4 4" Table 1-5 C-Shapes Dimensions Flange Width, b₁ 2 in. in. in.2 in. C15x50 14.7 15.0 15 0.716 1168 3.72 3% 0.650 % x40 11.8 15.0 15 0.520 x33.9 10.0 15.0 15 0.400 % 14 3.52 32 0.650 % %/16 3.40 3% 0.650 % C12-30 8.81 12.0 12 0.510 4 3.17 3% x25 7.34 12.0 12…
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The tension member shown in Figure 3.4-2 is a PL 5/8 x 10, and the steel is A36. The bolts are 7/8-inch in diameter. a. Determine the design strength for LRFD. b. Determine the allowable strength for ASD. | 2" +|+| in seinefrinehich 9 оо SO
Design the reinforcements of the given T beam below. bf=900mm bw=420mm tf-120mm d=550mm d'=80mm fc'=34MPa fy=415MPa USE NSCP 2015 A.Mu = 1300kN-m, As = mm2 B.Mu = 1800kN-m, As = mm2, As' = mm2
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Two plates each with thickness t=16mm are bolted together with g-22 mm dia•bolts forming a lap connection.bolts spacing are as follows S1=40mm, S2=80mm,S3=100. Bolt hole dia=25 mm Fu=483Mpa Fy=345Mpa Solve the allowable strength and the ultimate strength in: 1. Yielding 2.rupture 3.shear 4.block shear
SITUATION B. strength and the allowable strength considering the following members. Analyze the members separately except for No.7. 5. 6. Given the connection below bolted with M22 bolts, solve for the design tensile A992 W360x122 A36 L152X102X14.3 7. Built-up Section with Ey=345 MPa and Fu=450 MPa W 360 X 122 75 100 mm 100 -P L152X102X14.3 bf/2