Applied Statics and Strength of Materials (6th Edition)
6th Edition
ISBN: 9780133840544
Author: George F. Limbrunner, Craig D'Allaird, Leonard Spiegel
Publisher: PEARSON
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Chapter 19, Problem 19.20SP
Two ASTM A36 steel plates, each 12 in. by
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Two 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?
Use LRFD and design a 13-foot-long tension member and its connection for a service dead load of 8 kips and a service live load of 24 kips. No slip of the connection is permitted. The connection will be to a 3⁄8-inch-thick gusset plate, as shown in Figure . Use a single angle for the tension member. Use Group A bolts and A572 Grade 50 steel for both the tension member and the gusset plate.
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.
Chapter 19 Solutions
Applied Statics and Strength of Materials (6th Edition)
Ch. 19 - Prob. 19.1PCh. 19 - Rework Problem 19.1 assuming a bearing-type...Ch. 19 - Rework Problem 19.1 assuming a bearing-type...Ch. 19 - Compute the allowable tensile load for the...Ch. 19 - Rework Problem 19.4 assuming a bearing-type...Ch. 19 - Rework Problem 19.4 assuming that the bolts are 34...Ch. 19 - Select the number and arrangement of 34 in....Ch. 19 - Calculate the allowable tensile load for the...Ch. 19 - In the connection shown, 14 in. side and end...Ch. 19 - Design the fillet welds parallel to the applied...
Ch. 19 - A fillet weld between two steel plates...Ch. 19 - Design an end connection using longitudinal welds...Ch. 19 - Calculate the allowable tensile load for the butt...Ch. 19 - Calculate the allowable tensile load for the lap...Ch. 19 - Calculate the allowable tensile load for the butt...Ch. 19 - Rework Problem 19.10 assuming that both plates are...Ch. 19 - Rework Problem 19.12 assuming that the angle is an...Ch. 19 - Two ASTM A36 steel plates, each 12 in. by 12 in. ,...Ch. 19 - Rework Problem 19.20 changing the fasteners to 34...Ch. 19 - Calculate the minimum main plate thickness for the...Ch. 19 - A roof truss tension member is made up of 2L6412...Ch. 19 - Rework Problem 19.23 changing the fasteners to six...Ch. 19 - Determine the allowable tensile load that can be...Ch. 19 - The welded connection shown is subjected to an...Ch. 19 - In Problem 19.26, use a 38 in. fillet weld, change...
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- Question 41. Two 10-mm-thick by 60-mm wide hot rolled SAE 1050 steel plates are to be butt-welded together with a CJP weld. Choose an appropriate electrode for tensile loading of the joint. 2. Find the torque that a 2-surface dry disk clutch can transmit if the outside and inside lining diameters are 120 mm and 70 mm, respectively, and the applied force is 10 kN. Assume uniform wear and μ = 0.4.arrow_forwardA cantilever is to be attached to the flat side of a 6-in wide channel used as a column. The cantilever is to carry a load as shown in the figure. If two fasteners are used, should the array be arranged vertically, horizontally, or diagonally? How would you decide? Specify an optimal bolt pattern and size the bolts. 6 in- 6 in 6 in -in steel plate + 2000 lbfarrow_forwardAs shown in figure below, two plates are clamped by washer-faced 2 in-20 UNF SAE grade 5 bolts each with a standard 2 N steel plain washer. The top plate is steel and the bottom pplate is gray cast iron. If a total of 8 bolts where used to close 1 feet diameter pipe which applied at maximum pressure of 150 psi. Calculate the static and fatigue safety factor of this joint. Used Goodman theory for tha fatigue safety 1/2 factor. 3/4arrow_forward
- A light standard for a highway is shown in figure 6.52. Although it is made entirely of welded aluminum, the member ABC is presumed to be continuous and pin connected at B and C. According to this conservative assumption, what is the tension force in the strut at B? Neglect the weight of the aluminum members.arrow_forwardstrength of materialsarrow_forward200 mm 300 mm 42818 N B = 60° A lifting lug is to be mounted. The lug is shown on the drawing and the force is expected on the lug. The lug has a thickness of 30 mm. Calculate the minimum size of the weld for the given load case to ensure a minimum FOS of 3. Assume an AWS number E70xx electrode is used.arrow_forward
- Label all links starting with "1" and all joints starting with "A". Include whether the joint is a half joint or full joint as well as the type of joint.arrow_forward3- Select an unequal -leg angle tension member 15 feet long to resist a service dead load of 35 kips and a service live load of 70 kips. Use A36 steel. The connection is shown in figure. 3/4 in-diameter boltsarrow_forwardQUESTION: Suppose a bolted tension used in a doube-D ring configuration is properly preloaded. The spring constant for the bolts is 7.8 MN/m and the spring constant for the members is 12.7 MN/m. By how much does the tensile force in the bolt increase when a load of 705 N is applied? You may assume that joint separation does not occur. Give your answer in units of Narrow_forward
- Kindly answer correctly. Please show the necessary stepsarrow_forwardQ1: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 1.50arrow_forwardAn M 14 x 2 hex-head bolt with a nut and a 14R washer under each of bolt head and the nut is used to clamp together two 18-mm steel plates. NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. Determine the bolt stiffness. The bolt stiffness kb is 592.69 MN/m.arrow_forward
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