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Assumed that a beam as the one in fig.2 in the links below is an end span of a girder which is continuous over several supports and is integral with its supports. The distance l, which is the distance between the outside face of the exterior support at the left-hand end of the beam and the center of the interior support at the right-hand end, is 30ft; the width of the exterior support at the left is 16in. and the width of the interior support at the right is 18in. the design loads on the beam are to be an estimated uniform load equal to 1000 plf. And two concentrated loads p, each of which is equal to 85,000 ib. the distance 1/3l between the two loads p is 10ft. assume that each reaction for the concentrated loads alone would be 85,000 ib.
determine (a) the design maximum negative bending moment (b) the design positive bending moment, and (c) the distance form the exterior face of the interior support to the nearer point of inflection in the end span.
A circular hatch, 2-m in diameter has its top 10-feet under water ( fresh water s.g = 1.0), and is oriented vertically in the water column. What is the hydrostatic pressure force on the hatch, in Newtons.
The slope of the channel So=.15% and the Manning n=.038. Estimate the depth y2=100m upstream of a section where the flow depth y1=2.2m Using a) the direct integration method and b) the standard step method.
Assume that a gallon of gas contains 114,000 BTUs of energy and that a brilliant engineer has created an 80 percent efficient solar cell. Find the area (in square smoots and in square feet) that an array of these solar cells
A 10-min experimental run shows that 75% of a reactant is converted to a product by a zero-order reaction rate. What would be the fraction converted in a half-hour run. Assume the reactor is a batch reactor.
A gas has a volume of 2.0 liters, a pressure of 1.2 atm, and a temperature of 30 degrees Celsius is heated to 60 degrees Celsius and compressed to a volume of 1.5 liters. What is the new pressure
A train moving at 100 km/hr decreases its speed to 80 km/hr in 3.5 seconds. How far, in meters, did the train travel during this time
If A and B are both made of wood and are 3/8 in thick, determine to the nearest ¼ in the smallest dimension h of the support so that the average shear stress does not exceed \tauallow = 300 psi.
A new development is to be constructed in Mexico City. Due to the large subsidence, the elevation at the proposed site must be raised prior to construction. The total volume of soil needed to raise the site is 100,000 cubic yards.
What is the alkali-aggregate reaction? List some of the rock types that are vulnerable to attack by alkaline solutions. Discuss the effect of aggregate size on the phenomenon.
A cone penetration test has been conducted and has measured a con resistance of 85 kg/cm^3 at a depth of 10m. the vertical effective stress at this depth is 159KPa and the over consolidation ratio is 2
A large tank is used to calibrate the reading from a flow meter. Measurements of the system weight as a function of time are made. Water enters the tank vertically from the flow metering system at a speed of 20 ft/sec through a 1.5 in.
Calculate the stress in a No. 7 rebar subjected to a tensile load of 10,600 lb (in ksi).
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