Q: Repeat Problem 4, but now include the weight of the bar
Repeat Problem 4, but now include the weight of the bar. See Table 1 in Appendix I for the weight density of steel. Data from Problem 4: A vertical bar consists of three prismatic segments A1, A2, a...
See AnswerQ: Repeat Problem 5, but now include the weight of the bar
Repeat Problem 5, but now include the weight of the bar. See Table 1 in Appendix I for the weight density of steel. Data from Problem 5: A vertical bar is loaded with axial loads at points B, C, and...
See AnswerQ: A rectangular bar of length L has a slot in the middle
A rectangular bar of length L has a slot in the middle half of its length (see figure). The bar has width b, thickness t, and modulus of elasticity E. The slot has width b/4. (a) Obtain a formula for...
See AnswerQ: Solve the preceding problem if the axial stress in the middle region
Solve the preceding problem if the axial stress in the middle region is 24,000 psi, the length is 30 in., and the modulus of elasticity is 30 × 106 psi. In part (c), assume that Î&a...
See AnswerQ: A two-story building has steel columns AB in the first
A two-story building has steel columns AB in the first floor and BC in the second floor, as shown in the figure. The roof load P1 equals 400 kN, and the second-floor load P2 equals 720 kN. Each column...
See AnswerQ: The rails of a railroad track are welded together at their ends
The rails of a railroad track are welded together at their ends (to form continuous rails and thus eliminate the clacking sound of the wheels) when the temperature is 60° F. What compressive stress σ...
See AnswerQ: An aluminum pipe has a length of 60 m at a temperature
An aluminum pipe has a length of 60 m at a temperature of 10° C. An adjacent steel pipe at the same temperature is 5 mm longer than the aluminum pipe. At what temperature (degrees Celsius) will the al...
See AnswerQ: A welded steel girder having the cross section shown in the figure
A welded steel girder having the cross section shown in the figure is fabricated of two 20 in. × 1 in. flange plates and a 60 in. × 5 /16 in. web plate. The plates are joined...
See AnswerQ: A rigid bar of weight W = 750 lb hangs from three
A rigid bar of weight W = 750 lb hangs from three equally spaced wires: two of steel and one of aluminum (see figure). The diameter of the wires is 1/8 in. Before they were loaded, all three wires had...
See AnswerQ: A steel rod of 15-mm diameter is held snugly (
A steel rod of 15-mm diameter is held snugly (but without any initial stresses) between rigid walls by the arrangement shown in the figure part a. (For the steel rod, use α = 12 Ã...
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