7-34. The beam is constructed from three boards. If it is subjected to a shear of V = 5 kip, determine the maximum allowable spacings of the nails used to hold the top and bottom flanges to the web. Each nail can support a shear force of 500 lb. 0 0 10 in. 1.5 in. 12 in. V 1 in. 6 in. 1.5 in.

Problem #2: Determine the internal axial force in each member of the truss using the force method. Clearly indicate whether the member is in tension or compression. Assume AE is constant. Hint: When cutting extra member(s), recall that the "cut primary" truss still must transmit the load to the supports and must be stable! Thus, selecting which members to cut should be trivial here! 3m -4 m- B -4 m C E 8 KN -4 m- D

Using Method of Joints, Determine the force in Member DG. 10 kips 40 kips 10 kips 20'-0" F B 20'-0" G C 20'-0" D H 20'-0" E 20'-0"

3) a) Use method of joints to determine the forces in members BC and CF of the truss. b) Use method of sections to determine the forces in members BC and CF of the truss (You must use only one cut and one section FBD). 3 m 1m A 12 kN 2m B F 24 KN C 4m D E 4 m

| 48 kN -4 m-4 m--4 B| DI C 4.5 m E Compute the force on EACH member of the truss. Classify each forces whether the members are in tension or compression. Answer must be in a table

It is obtained by fixing 4 wooden planks to each other with nails.given as a cross section. 2 verticals forming the sectionplank 20 mm X 80 mm, the other two planks 20 mm X 120 mmin size. between the nails fastening the planksthe distance is s = 50 mm. allowed on each nailThe safe cutting force is 300 N.a) The highest vertical that the beam can safely carryWhat is shear force?b) The maximum amount formed in the section corresponding to this shear force.What is high shear stress?

www X- 888 F3 = 4 kN F = 6 kN 5. 4. F = 8 kN F = 6 kN %3D resultant force is zero. acting on the gusset plate of a bridge truss. Show that the Example Determine the x and y components of each force

Using the method of joints, compute the force in each member of the loaded cantilever truss. B 5 m D 5 m 5 m 5 m 5 m A 5 m 5 m E 30 kN 20 kN

12 in. 9 in. B y |A 40 lb Prob. 6 ,. The pipe wrench is parallel to the z-axis, and is subjected to a 40lbf force in the -y direction. The pipe's inner and outer diameters are 1.040 and 1.300 inches, respectively. Please calculate the principal stresses at points A and B. Note carefully that torsion, bending, and shear must all be considered at the cross-section of interest.

From the given trusses below, determine the force in the member MN. (kN) Hint: V -20.9 kN Note: Use two (2) decimal places in the final answer. %3D M 1.5m L to 0. 75AN 75AN 9 cqual bays at3.0 m cach 3.0m