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A free-standing rectangular beam with cross-sectional width b = 250 mm and a span of 6.5 m is loaded with dead load (including dead weight) = 29 kN / m and payload = 35 kN / m. The payload has no long-term share.
a) Determine the dimensioning field moment of the beam in the ultimate limit state.
b) Select normal reinforced cross section. Determine the cross-sectional height and reinforcement quantities when it is stated that the beam is to be pressure-reinforced for 30% of the design moment. Show geometry and reinforcement on a sketch of the cross section.
c) Sketch the strain state of the cross section and check that the pressure reinforcement flows.
d) A deflection requirement in the service limit state of L / 400 has been stated. Calculate the maximum deflection in the life of the beam and compare with the requirement, disregarding the effect of shrinkage on deflection.
A first order partical differential equations p+q=z-xy is
A company has decided to expand its business and has opened new departments. Company has its
software system, to incorporate those departments in existing software system, it contacts a software
company.
To build such a system which type of process model approach should be followed by the software
company, iterative, incremental, or simple linear approach. Justify your answer please.
In rising a 200 kg Shivaji Maharaj statue of bronze material 10,000 J of work is performed. How high it is raised ? *
A footing 2m x 2m is to be founded at a depth of 1.5m in a saturated soil of unit weight 19 kN/m3. The soil has an angle of friction, f, of 28o and cohesion, c, of 5kPa. Groundwater level is at a depth of 4m. Assume a factor of safety of 3.0.
⦁ Determine a value for the safe bearing capacity of the foundation.
⦁ If the groundwater level was to rise to the ground surface, determine the new value of safe bearing capacity.
Determine the total thrust on the back of a smooth vertical wall, 8m high, which is supporting granular backfill with bulk unit weight 18kN/m3 and angle of friction of 33 degrees. The soil surface is horizontal and the water table lies 2.2m below ground level. Assume the saturated unit weight of backfill is 22kN/m3 below water table.
A raft foundation subjects its supporting soil to a uniform pressure of 300 kPa. The dimensions of the raft are 6.1m by 15.25m. Determine the vertical stress due to the raft at a depth of 4.58m below it at the central points of the long edges.
A 8m thick layer of medium sand overlies a deep deposit of dense gravel. A series of standard penetration tests carried out through the depth of the sand has established that the average blow count is 26. Further tests show that the gravel has a standard penetration value of N = 52 in the region of the interface with the sand. A precast pile of diameter 300mm is to be driven down through the sand and to penetrate sufficiently into the gravel to give good end bearing. Adopting a safety factor of 3.0, determine the allowable load that the pile will be able to carry.
A distributed load of w N/m is applied over an entire length of a simply supported beam 8m long. The beam section is made up of four 20mmx100mm rectangles arranged as shown. A. Determine the maximum value of w without exceeding the permissible flexure stress of 10MPa. B. Determine the maximum value of w without exceeding the permissible shear stress of 1.2MPa.C. Determine the maximum value of w without exceeding the permissible screw strength of 800N for a pitch of 75mm. *
A conical vessel 12 cm deep and with a radius of 6 cm at the top, is being filled with water. If the rate at which the water rises is 2 cm/sec, how fast is the volume increasing when the water is 4 cm deep? How fast is the volume increasing?
