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Problem: Given a strip footing as shown in the figure. The footing is part of a building that is being renovated. The building load of 50 kips is shown on the figure. Construction required some staging to be attached to the foundation in order to facilitate the erection of other components. During construction, a crane operator accidentally hit the staging structure with his crane boom. Assuming that we can model the impacts as a 1 kip load in the z-direction, determine if the foundation fails. The strength of the concrete is 700 psi in tension and 8000 ksi. The modulus of elasticity of the foundation concrete is 5,000 ksi. Consider all normal and shear stresses created in the foundation by the loads to make your determination if the foundation is safe or unsafe. Document the assumptions that you make and the approach that you follow to solve this problem in such way that an engineer reviewing your calculations can follow the approach.
a piston-cylinder contains nitrogen at a temperature of 50 degc a pressure of 500 kpa and a volume of 10 liters. a
plot a curve of the specific exergy of 1 kg of a substance that has a constant specific heat of 1 kjkg-k over the
10 degree c water is flowing in a 10mm internal diameter smooth tube. the mass flow rate of the water is 0.07 kgs. the
a cylindrical container has a 4.5 inch diameter and weighs 0.4 lbf when empty. when the cylinder is filled to a depth
Air at 300 kPa, 63oC, and a velocity of 423 m/s enters an insulated duct of varying cross-sectional area. The air exits at 150 kPa, 88oC. At the inlet, the cross-sectional area is 6.57 cm2.
steam at 500 kpa 300c is used to heat cold water at 15c to 75c for domestic hot water supply. how much steam per kg
A meteorologist uses a pitot -static tube to measure the wind speed in a tornado. Based on the damage caused by the storm, the tornado is rated as EF5 on the enhanced Fujita Scale. This means that the wind speed is estimated to be in the range of 261..
power from a 3200 hp motor is transmitted by a 2 12 in diameter shaft rotating at 2000 rpm. bending and axial loads are
a hollow sphere is constructed of aluminum with an inner diameter of 4 cm and an outer diameter of 8 cm. the inside
superheated steam at 120 bar and 520c leaves the steam generator of a vapor power plant and enters a turbine with an
the rigid body shown above is made of a solid truncated cone and solid hemisphere joined together at the bases of the
A brittle cast iron (E = 15 Msi, ? = 0.2, Sut = 30 ksi, Suc = 100 ksi) hub is shrink-fit onto a solid carbon steel shaft. The hub has initial inner and outer diameters of 3.000 and 6.000 inches respectively. What is the largest diameter the steel sha..
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