1.45 The figure shows a roof truss and the detail of the connection at joint B.Members BC and BE are angle sections with the thicknesses shown in the figure. Theworking stresses are 70 MPa for shear in the rivets and 140 MPa for bearing stressdue to the rivets. How many 19-mm-diameter rivets are required to fasten the fol-lowing members to the gusset plate: (a) BC; and (b) BE? D- 14-mm-thickgusset plateFB6 m- 13-mm-thickangleEGHAC4 m4 m4 m4 mP BE96 kN200 kN96 kN6-mm-thickanglePBC

Answered: Image /qna-images/answer/19065f2c-3c01-4829-a290-70b52dd4850d.jpg

Answered: D 14-mm-thick gusset plate F -…

D 14-mm-thick gusset plate F - 13-mm-thic angle 6 m E G H A C 4 m 4 m 4 m 4 m P BE 96 kN 200 kN 96 kN 6-mm-thick angle PBC B.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Two d mm*10 mm cover plates are welded to two UPN 200 channels 100 mm high to form the cross section of the compound beam shown in the figure. The moment of inertia of each channel about a horizontal axis through the centroid is 19.10*106 mm4. a) Determine the support reactions. b) Draw the shear force and bending moment diagrams. c) If the allowable bending stress of the beam is 300 MPa, find the required width d of the plates to safely support the load.
Two 160 mm * t cover plates are welded to two cahnnels 200 mm high to form the cross section of the beam shown in the figure. The moment of inertia of each channel about a horizontal axis through the centroid is 2.06*106mm4. a)Determine the support reactions. b)Draw the shear force and bending moment diagrams. c)If the allowable bending stress of the beam is 255 MPa, find the required thickness t of the plates to safely support the load.
Six 20mm diameter rivets fasten the plate, as shown, to the fixed member. Determine the average shearing stress caused in each rivet by the P (in kilo-newton) loads. P=74 Show detailed solution
Find the stresses in the wires P1, P2, P3 shown if their diameters are 100mm each and P3=20kN and the resultant of the forces equals 40kN. All distances are in mm.
Bar weld shown in English, (between AB: 1m / BC: 3m / CD: 2m) a) Show the support reactions and load resultant on the rod? b) Calculate the support reactions? c) Normal Force, Shear Force and Moment bonding calculation by cutting the points you specified? d) Draw the cross section effect diagrams? Specify the maximum positive and negative moment? e) Check the cross-section influence diagrams with a simple method, describe the control steps briefly?
Link-2, shown in the figure, is 30 mm wide, has 12 mm diameter bearings atthe ends, and is cut from low carbon steel bar having a minimum yield strength of190 MPa. The end-condition constants for link-2 are C = 1 and C = 1.2 for bucklingin and out of the drawing, respectively.a) Draw necessary and clear free-body diagrams to determine the reactions atthe supports and the load on both member-2 and member-3. b) Determine a suitable thickness for link-2, based on a design factor of safetyηD = 4, and considering a material having E = 207 GPa, and a minimum yieldstrength Sy = 350 MPa. c) Determine the stress and resulting factor of safety for each pin, and state yoursuggestions in case of design factors less than 4. Use appropriate (SI) units as it applies (if any.)
Two 10"-15.3 lb channels are welded together as shown in the figure. Find the moment of area of the upper channel about the horizontal centroidal axis x0 of the entire section.
The davit shown in the figure is supported by a cable at B and pinned at A and is subjected to a force P at the right end. The connection at A is a single shear pin with a pin diameter of da = 1.125 in. Connections at B and C are double shear connection with a pin diameter of db = 0.875 in. Tie rod (1) has an area of A1 = 1.25 in.2. The ultimate shear strength in each pin is Τu,pin = 90 ksi, and the yield strength of the tie rod is σy = 43 ksi.[a = 13 ft, b = 6 ft, c = 8 ft, d = 3 ft, θ = 70 °, P = 25 kips] Determine the normal stress in the tie rod (1). Determine the shearing stress in the pin at A. Determine the shearing stress in the pin at B. Determine the factor of safety with respect to the yield strength for tie rod (1). Determine the factor of safety with respect to the ultimate strength for the pin at A. Determine the factor of safety with respect to the ultimate strength for the pin at B.
A horizontal beam AD is supported by an inclined strut CB carries a load W = 2.4KN at the position shown. The strut which consists of one bar is connected to the beam by a bolt passing through the three bars meeting at joint C. BC is 75mm wide and 10mm thick strut while AD is 100mm wide by 10mm thick rigid bar. (a)What is the minimum required bolt diameter in at C if the allowable bolt shear is 68MPa? (b)Determine the stress in strut BC. (c)Determine the bolt stress at A if its diameter is 20mm.
A simple pin-connected truss is loaded and supported asshown in Figure P1.12. The load P is 200 kN. All members of thetruss are aluminum pipes that have an outside diameter of 115 mmand a wall thickness of 6 mm. Determine the normal stress in eachtruss member. Assume truss dimensions of a = 12.0 m, b = 7.5 m,and c = 6.0 m.
A sign of weight W is supported at its base by four bolts anchored in a concrete footing. Wind pressure p acts normal to the surface of the sign; the resultant of the uniform wind pressure is force F at the centerof pressure (C.P.). The wind force is assumed to create equal shear forces F/4 in the y direction at each bolt (see figure parts a and c). The overturning effect of the wind force also causes an uplift force R at bolts A and C and a downward force (-R) at bolts B and D (see figure part b). The resulting effects of the wind and the associated ultimate stresses for each stress condition are normal stress in each bolt (σu = 60 ksi); shear through the base plate (τu = 17 ksi); horizontal shear and bearing on each bolt (τhu = 25 ksi and σbu = 75 ksi); and bearing on the bottom washer at B (or D) (σbw = 50 ksi). Find the maximum wind pressure pmax (psf) that canbe carried by the bolted support system for the sign if a safety factor of 2.5 is desired with respect to the ultimate wind…
Refer to the figure shown below, the hinged support at A is in double-shear connection while the support at B in single shear shear connection. Forces P is applied at C and F is an axial force produced from a member BD connected at B. Given data: x = 1.2 m, y = 1.5 m and z = 1.8 m. ∅ = 20 degrees. Which of the following most nearly gives the diameter of pin at B in mm if P = 20 kN and the shear capacity of the pin at B is 80 MPa.