Check the number of bolts at joint A and B. W12X31 6-120 A-325F bolts 1.10m 0||0 ollo W12X38 A 4-160 A-490N bolts B 4.20m P = 200 KN 1m
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- Pc=nxdxtxo =2x25x20x150 150000 N The strength of the riveted joint= Least of P, Ps , Pc =150 000 N %3D The lap join the edges of There are th %3D 000 050= 02I X 0Z X 001 ='91d=d 0000$ =D0.625 or 62.5 % %3D 0000 a-single tr Homework: 1-A single riveted lap joint is made in 1.5 cm thick plates with 2 cm diameter rivets Determine the strength of the joint, if the pitch of rivets is 6 cm? Take 6,=1200 kg/cm ; o,= 900 kg/cm² ; 6=1600 kg/cm 2-Two plates 16-mm thick are joined by á double riveted lap joint. The pitch of each row of rivets is 9 cm. The rivets are 2.5 cm in diameter. The permissible stresses are as aqnop -4 c-paraller [ans:2827kg] 2. G,=1400 kg/cm ; 6,=1100 kg/cm² ; 6.= 2400 kg/cm 2. Find the efficiency of the joint . 3-A double riveted double cover butt joint is made in 1.2 cm thich plates with 18 mm diameter rivets.find the efficiency of the joint for a pitch of 8 cm. 2. 2. ст Take :6,=1150 kg/cm ; 6, = 800 kg/cm² ; oc=1600 kg/cm 10 mm thick, the allowable stresses are : 6, =…Sketch a V-grooved butt joint, and label all of the joint's dimensions.Q1:Prepare a full-section assembly drawing of the four fastener assemblies shown in the Figure. Dimension both the clearance and the threaded holes. A top view may be shown if required. Scale 1: 1. .250-20 FHMS .375 HEX BOLT AND NUT THREADED INTO BASE 1.00 ↓ .50 T 2.00 Ø.375 STUD THREADED .312 HEX X 1.25 LG INTO BASE FOR 1.00 IN. CAP SCREW AND WITH HEX NUT AND LOCK WASHER ON SPOTFACE SURFACE PLATE WASHER A 2.00- -2.00 -1.00- BASE 1.00- .25 1.50
- find the tensile of the bolt with diameter 38mm,80kNDesign of a bolted assembly using a single M16x2 class 8.8 coarse-thread bolt has resulted in a joint where bolt stiffness is k, = 6 N/mm and the overall member stiffness - 18 N/mm. The fastener is to be reused (nonpermanent). Question 1 Value of joint stiffness constant: 0.25 4.0 0.5 0.1 Question 2 Magnitude of bolt tightening load (preload) Fi [kv]: 85 71 94 63The following figure shows the connecting part of a suspension assembly. Impact on the part What is the seam length of the weld joint if the magnitude and direction of the force F acting on it is constant? should be. Material St37 and welding quality II will be take F=10 kN, s=10 mm, sa F L
- A 945 lb Q3) Analysis the truss by method of joint? 9ft 12 ft 3.75 ft اضف ملف كThe figure below shows two plates connected by two rivets. The plates are made from aluminum 6061-T6 and the rivets are made from aluminum 2014-T4. Evaluate the maximum allowable force on the connection to meet the following design critoria the shoar stross in a rivot cannot excced 1/4 of the ultimate strongth in shoar. 75 mm 38 mm 38 mm 12 mm dia -9 mm The figure below shows two plates connected by two rivets. The plates are made from aluminum 6061-T6 and the rivets are made from aluminum 2014-T4. Evaluate the maximum allowable force on the connection to meet the following design criteria the tensile stress in the plates cannot exceed 1/3 of the yield strength. mm 75 mm 38 mm 38 mm 12 mm dia. The figure below shows two plates connectd by two rivets. The plates are made from aluminum 6061-T6 and the rivets are made from aluminum 2014-14. Evaluate the maximum allowable force on the connection to moet the following design criteria the bearing stress on either the plates or the rivets…find shear amd Binding momont okagrou 5KN/m 5m Tht 3m 707
- 3. An M16 x 2 bolt with a slotted hex nut is used to clamp together two 25 mm steel plates. The joint is assembled with a size 16 N washer underneath the bolt head. The bolt is a 5.8 class metric grade, with a proof strength of 380 MPa. The joint is intended to be permanent. Determine a suitable length for the bolt, rounded up to the nearest standard size in millimeters. Calculate the bolt stiffness, the elongation of the bolt after the necessary preload is developed, and the bolt torque required to apply the preload. Assume that coefficients of friction between the bolt, nut, and collar are all ~0.15. For steel, use E = 207 GPa. Standard threaded fastener lengths, dimensions of hexagonal nuts, and dimensions of metric plain washers are provided in the textbook appendices.Table 7-1 11) Determine the available tension capacity (LRFD) of the connection with A36 steel plates. Fy 36 ksi, F. = 58 ksi, U=1. Assume the bearing capacity is adequate. Available Shear Strength of Bolts, kips Nominal Bolt Diameter, d, in. Nominal Bolt Area, in.2 1.23 14 in x 1 in. R 中 Desig- Thread (ksi) | (ksi) Load- Ta ing ASD LRFD nation Cond. ASD LRFD (11) S 33.2 66.4 49.8 27.0 40.5 Group D. 99.6 41.8 62.7 34.0 51.0 D. 83.6 125 41.8 62.7 34.0 51.0 Group 83.6 125 9.5 in x 4 in. P S 51.7 77.5 155 42.0 63.0 4-1 in. A325 N bolts (Group A) (138 in. hole size) 103Two 1/4 in × 8 in A36 steel plates are joined with a lap joint using 3/4 in A325-N bolts. If a concentric unfactored live load of 50 kips (dead load = 0) is required to be resisted by the connection and the bolt shear strength controls the design, the minimum required number of bolts is?