Determine the LRFD design strength and the ASD allowable strength of the W16x31 shown including the block shear strength. Use A992 steel and 7/8-in bolts. in PL W16 X 31 in W16 X 31 13 in |3 inレt 2 in 2 in+ L=6 in
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- 1.A tension member is 25 mm thick plate as shown. The bolts are 20 mm. diameter high-strength bolts. The steel is A36. Compute the following: 130 mm 25 mm 0 0 a) The design strength for LFRD. b) The allowable strength for ASD. 25 mm CIVIL ENGINEERING STEEL DESIGNCompute the design strength (øPn) of the double angle tension member shown below for the following limit states: • tensile yielding in the gross section • tensile rupture in the net section • block shear rupture Identify the controlling limit state. Note: • The angles conform to ASTM A36 • LLBB = long legs back-to-back PL I" 11 (6) 7/B DIA. BOLTS z" 3" 2" -2L6x4x%2 LL BBMaterial 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
- The tension member shown 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. Tühitinin 2" 2" + 32 | 3² | O O O O OO OA C12 × 30 is connected with 25 mm diameter bolts in each flange, as shown. If Fy= 345 MPa, Fu= 448 MPa, and Ae = 0.90An, compute the following. a. The design strength for LRFD. b. The allowable strength for ASD. Properties of C12x 30 Ag = 5,690 mm² br = 50 mm d = 304.8 mm tw = 13 mm tr = 12.7 mmA double-angle shape is shown in the figure. The steel is A36, and the holes are for 2-inch-diameter bolts. Assume that A₂ = 0.75An. Ae 1 2 Determine the design tensile strength for LRFD. Determine the allowable strength for ASD. CIVIL ENGINEERING - STEEL DESIGN AL Section 2L5 x 3 x 516 LLBB
- Determine the LRFD design strength and the ASD allowable strength. Neglect block shear. A36 steel and 7/8-in Ø bolts N VA N SZ 2-MC 12 x 40 00 K All 2 in 2 in 3-in 3/in 2/inDetermine the allowable (ASD) tensile strength (kN) of a WT205X74.5 having two lines of M22 bolts as shown. There are four balts in each line, 75 mm on center. The yield strength of the steel is 345 MPa and the ultimate tensile strength is 483 MPa. Neglect the block shear strength.Problem 1: Determine the LRFD design strengths ØP and the ASD allowable strengths Pn/ of the sections given as required by yielding of the gross section and fracture on the net section: c. A W14 x 61 using A572 Grade 42 steel (Fy= 290 MPa, Fu = 414 MPa) with two lines of 19-mm bolts in each flange ( three in a line 100 mm on center). Assume bolts are not staggered. Properties of W 14 x 61: A = 11548 mm², d = 352.81 mm, b₁ = 253.87 mm, t = 16.38 mm, t = 9.53 mm. For WT 7 x 30.5: * = 31.75 mm 50 200 75 Plate 19mm x 406mm 75 MC18 x 42.7 75 Plate 19mm x 406mm Figure 2 75 75 Figure 1
- 1. A single-angle tension member, an L4x4×3/8, is connected to a gusset plate with 7/8-inch diameter bolts as shown in the attached figure. Assume that the effective area is 85% of the computed net area. The steel is ASTM A242 with Fy=50ksi and Fu=70ksi. A. Compute the design strength for LRFD. If the applied load is 100 kips, is the member satisfactory or not satisfactory? B. Compute the allowable strength for ASD. If the applied load is 80 kips, is the member satisfactory or not satisfactory? F L 4 x 4 x 3/8 SectionAt the connection at point C, 4 M20 bolts are used to connect the U150x75x6.5x10 profile with the gusset plate, tb = 10 mm. The quality of U profile steel and gusset plate is BJ41. Bolt quality is A490M with shear plane on the non-threaded part. a) Check the bolt clearance requirements in the direction of the force. b) Check that the shear strength of the bolt is sufficient to withstand the factored load SUBC. c) Determine the distance between the bolts, s, so that the bearing strength of the connected plates is sufficient to withstand the factored load SUBC. Baut M20 - S, BC U150x75x6,5x10 Pelat buhul, t = 10 mm Kolom WF 300x300x10x15 (satuan dalam mm) 81B) The tension member shown in Figure is a W 16 x 40, and the steel is A992. The bolts are 3/4-inch in diameter. Determine the design strength for LRFD. and the allowable strength for ASD. W16 x 40 in Ø bolts | All 3 in