An angle L5x5x5 tension member of A36 steel is connected to a gusset plate with six 3/4-inch diameter bolts as shown in Figure 3. If the member is subject to dead load and live load only, what is the maximum total service load that can be applied if the ratio of live load to dead load is 3.0? Use the alternative value of U from AISC Table D3.1. L5x5x% 1/2" p 0000 H 5 spaces @ 3" = 15" Figure 3 1/2"
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- An angle L5×5×% tension member of A36 steel is connected to a gusset plate with six 3/4-inch diameter bolts as shown in Figure 3. If the member is subject to dead load and live load only, what is the maximum total service load that can be applied if the ratio of live load to dead load is 3.0? Use the alternative value of U from AISC Table D3.1. L5X5X% 1/2" Jefe H 5 spaces @ 3" = 15" 1/2"An L 5 x 5 x tension member of A588 steel is connected to a gusset plate with six -inch- diameter bolts as shown in Figure P3.3-4. If the member is subject to dead load only, what is the maximum total service load that can be applied if the ratio of live load to dead load is 2.0? Use the alternative value of U from AISC Table D3.1 (Consider yielding & rupture limit states only.) a. Use LRFD b. Use ASD L5 x 5 x '½ 1'/2" 5 spaces @ 3" - 15" 12" FIGURE P3.3-4 na.coThe given angle bar L125x75x12 with Ag = 2,269 sq.mm. is connected to a gusset plate using 20 mm diameter bolts as shown in the figure. Using A36 steel with Fy = 248 MPa and Fu = 400 MPa, determine the following: 2. Determine the nominal tensile strength of the 12 mm thick, A36 angle bar shown based on: a. Gross yielding b. Tensile rupture Bolts used for the connection are 20 mm in diameter. O O O O O O O Effective net area of the tension member if the shear lag factor is 0.80. Select the correct response: 1,516.1 1,354.4 1,431.2 1,221.6
- A C8 x 11.5 is connected to a gusset plate with 7/8-inch-diameter bolts as shown in Figure P3.2-3. The steel is A572 Grade 50. If the member is subjected to dead load and live load only, what is the total service load capacity if the live-to-dead load ratio is 3? Assume that A = 0.85A,,. C8 × 11.5A plate with width of 420 mm and thickness of 13 mm is to be connected to a plate of the same width and thickness by 30 mm diameter bolts, as shown in the Figure 1. The holes are 3mm larger than the bolt diameter. The plate is A36 steel with yield strength Fy = 248MPa. Assume allowable tensile stress on net area is 0.60Fy. It is required to determine the value of b such that the net width along bolts 1-2-3-4 is equl to the net width along bolts 1-2-4. W = 420 mm t = 13 mm a = 64 mm c = 104 mm d = 195 mm Bolt Diameter = 30 mm Holes Diameter = 30 mm + 3 = 33 mm ?? = 248 MPa Allowable Tensile Stress on ?? = 0.60Fy a. Calculate the vaue of b in millimeters. b. Calculate the value of the net area for tension in plates in square millimeters. c. Calculate the value of P so that the allowable tensile stress on net area will not be exceeded.P4.002 Three bolts are used in the connection shown in the figure. The thickness of plate (1) is 15 mm. The ultimate shear strength of the bolts is 350 MPa, and the ultimate bearing strength of plate (1) is 375 MPa. Determine the minimum bolt diameter required to support an applied load of P = 155 kN if a minimum factor of safety of 2.8 is required with respect to both bolt shear and plate bearing failure. Answer: dbolt min = (1) mm
- Problem 01 The lap joint in the figure is fastened by four 20 mm Ø A325X bolts. Calculate the maximum safe load P that can be applied if the plates are 25 mm thick A-36 steel Use ASD. P 4 @ 40 mm 2@ 60 mm Problem 02 Based on the bolt capacity, determine the required number of 20 mm Ø A490F bolts needed to develop the full strength of the steel plate in Problem 01 if P = 250 kN. Assume that the surface is Class A and the hole size is standard. Use LRFDSTAGGERED CONNECTIONS: A PLATE WITH WIDTH OF 400 mm AND THICKNESS OF 12 mm IS TO BE CONNECTED TO A PLATE OF THE SAME WIDTH AND THICKNESS BY 34 mm DIAMETER BOLTS, AS SHOWN IN THE FIGURE. THE HOLES ARE 2 mm LARGER THAN THE BOLT DIAMETER. THE PLATE IS A36 STEEL WITH YIELD STRENGTH Fy = 248 MPa. ASSUME ALLOWABLE TENSILE STRESS ON NET AREA IS 0.60Fy. IT IS REQUIRED TO DETERMINE THE VALUE OF b SUCH THAT THE NET WIDTH ALONG BOLTS 1-2-3-4 IS EQUAL TO THE NET WIDTH ALONG BOLTS 1-2-4. a. CALCULATE THE VALUE OF b IN MILLIMETERS. b. CALCULATE THE VALUE OF THE NET AREA FOR TENSION IN PLATES IN SQUARE MILLIMETERS. c. CALCULATE THE VALUE OF P SO THAT THE ALLOWABLE TENSILE STRESS ON NET AREA WILL NOT BE EXCEEDED.A 15" x 3/8" bar of A572 Gr. 50 steel is used as a tension member. It is connected to a gusset plate with 7/8-in diameter bolts as shown in the figure. Use s = 2.0 and g = 3.0.a) Determine the design tensile strength of the section based on yielding of the gross area.b) Determine the critical net area of the connection shown.
- A C8 × 11.5 is connected to a gusset plate with 7⁄8-inch-diameter bolts as shown in the Figure . The steel is A572 Grade 50. If the member is subjected to dead load and live load only, what is the total service load capacity if the live-to-dead load ratio is 3? Assume that Ae = 0.85An.a. Use LRFD.b. Use ASD.Determine the design tensile strength of plate (200x8 mm) connected to 10-mm thick gusset using 20 mm bolts as shown in the figure, if the yield and the ultimate stress of the steel used are 250 MPa and 410 MPa, respectively. Add 1mm around the bolt for the hole. Use LRFD method. Plate 8-mm thick 2 3 40+ 30 301 T 200 mm Gusset 10-mm thick 3af 30 2_3 *40 40+ 50,54 +40A C8 × 11.5 is connected to a gusset plale with 22 mm diameter bolts as shown. The steel is A572 Grade 50. If the member is subjected to dead load and live load only, what is the total scrvice load capacity if the live-to-dead load ratio is 3? Assume that Ae = 0.85Ap. a. Use LRFD. b. Use ASD. Properties of A572 Grade 50: Fy = 345 MPa C8 × 11.5 Fu = 448 MPa Properties of C8 x 11.5: Ag = 2,181 mm? br = 57.4 mm d= 203.2 mm Lw = 5.6 mm lf = 9.9 mm