Q: A plane truss is subjected to loads P2 and P at joints
A plane truss is subjected to loads P2 and P at joints B and C, respectively, as shown in the figure part a. The truss bars are made of two L 102 × 76 ×Â&nb...
See AnswerQ: A solid bar of circular cross section (diameter d) has
A solid bar of circular cross section (diameter d) has a hole of diameter d/5 drilled laterally through the center of the bar (see figure). The allowable average tensile stress on the net cross sectio...
See AnswerQ: A solid steel bar of a diameter d1 = 60 mm has
A solid steel bar of a diameter d1 = 60 mm has a hole of a diameter d2 = 32 mm drilled through it (see figure). A steel pin of a diameter d2 passes through the hole and is attached to supports. Determ...
See AnswerQ: A sign of weight W is supported at its base by four
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...
See AnswerQ: The piston in an engine is attached to a connecting rod AB
The piston in an engine is attached to a connecting rod AB, which in turn is connected to a crank arm BC (see figure). The piston slides without friction in a cylinder and is subjected to a force P (a...
See AnswerQ: Truss members supporting a roof are connected to a 26-mm
Truss members supporting a roof are connected to a 26-mm-thick gusset plate by a 22-mm diameter pin, as shown in the figure and photo. The two end plates on the truss members are each 14 mm thick. (a)...
See AnswerQ: The upper deck of a football stadium is supported by braces,
The upper deck of a football stadium is supported by braces, each of which transfers a load P = 160 kips to the base of a column (see figure part a). A cap plate at the bottom of the brace distributes...
See AnswerQ: The inclined ladder AB supports a house painter (85 kg)
The inclined ladder AB supports a house painter (85 kg) at C and the weight (q = 4 0N/m) of the ladder itself. Each ladder rail (tr = 4 mm) is supported by a shoe (ts = 5 mm) that is attached to the l...
See AnswerQ: A steel plate of dimensions 2.5 × 1.5
A steel plate of dimensions 2.5 × 1.5 × 0.08 m and weighing 23.1 kN is hoisted by steel cables with lengths L1 = 3.2m and L2 = 3.9m that are each attached to the plate by a c...
See AnswerQ: A plane truss has joint loads P, P2, and P3
A plane truss has joint loads P, P2, and P3 at joints D, C, and B, respectively (see figure) where load variable P = 5200 lb. All members have two end plates that are pin- connected to gusset plates....
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