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An S 12x40.8 of A36 steel in a building is supported as a simple beam having a span equal to 17ft 6in. and carries a uniform load equal to 1.60 klf, which includes the weight of the beam over the entire span.
A) Compute the maximum fiber stress.
B) If the compression flange of the beam is supported laterally only at the ends of the span, what will be the allowable compressive stress in the extreme fibers?
Compute the seepage velocity and estimate the hydraulic gradient in the aquifer if the porosity of the soil is 42%.
determine the elongation of the cable due to its own weight. B. show thet the same elongation would be obtained if the cable were horizontal and if a force equal to half of its weight were applied at each end
Determine the valve loss coefficient needed for h=20 ft. All losses except for the flow control valve are negligible. The area of the pipe is 5 times the area of the exit nozzle.
given bulk density as 1300kg/cubic meter and field capacity as 22% by weight and permanent wilting point as 10% by weight calculate available water capacity.
Effective stress is defined as the overburden soil pressure less the buoyancy effect of water. What is the effective stress 20 feet deep if the specific weight of the dry soil is 113 pcf and the water table is 11 feet deep
An industrial plant presently discharges a chemical (W=2000 * 106 gr/yr) to the lake. In addition, the inflow stream also contains the same chemical at a concentration of 15 mg/L. Note that the volumetric inflow and outflow are equal.
A reinforced concrete column has 6 steel rods inserted in the column and the apparatus is subjected to a temperature drop of 90degrees F. from its stress free state.
Two parallel plates are separate at a distance of 2mm by a fluid. If a shearing stress of 150 Pa is developed at the upper plate when it is pulled at a velocity of 1m/s. Determine the viscosity of the fluid.
Given this 10-yr record of annual precipitation in inches (28,21,33,26,29,27,19,28,18,22), plot a rough precipitation frequency curve. Tabulate the data to be plotted and show the method of computation. (note: the frequency in percent of years is ..
Estimate the value of the coefficient of at-rest earth pressure forthe deposit. If, when the water table was at the ground surface, the deposit was normallyconsolidated,would it still be normally consolidated with the water tablelowered? A reason mus..
Workers plan to apply a reflective coating of paint to one surface of an equilateral triangular shaped highway sign. How many square inches of coating need to be applied to the sign if one side of the triangle is 12 inches
A notched beam, machined from AISI 1020 steel is subjected to reversed bending. Determine the endurance limit Se. Assume the survival rate of 99.9 percent and Cs = 0.75 and that the fatigue stress concentration factor is Kf =2.5.
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