Design a cantilever slab to carry a live load of 2000 N/m2. The overhang of the slab is 1.20m. b) A slab over a room is 4.75m x 4.75m. The edges of the slab are simply supported and the corners are not held down. The live load an the slab is 300 Kg/m2. The slab has a bearing of 15cm. On the supporting walls. Design the slab as per Rankine - Grashoff theory. Assume weight of R.C.C. = 2400 Kg/m2.

2861

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A doubly reinforced concrete beam is 25 cm wide and 50cm deep to the centre of tension reinforcement. The centre of compression is steel is 5cm from the compression edge. The areas of the compression and the tension steel are 10.16cm2 and 12.56 cm2 if m=18 and the bending moment at the section is 7,000,000 N-cm. Calculate the stress in concrete and steel.

2175

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Design a reinforced concrete combined footing (rectangular) for two columns located 3.60 metres apart. The overall sizes of the columns are 40cm x 40cm and 69cm x 60cm and the loads on them are 1000 kn and 1500 kn respectively. The space available for the width of the footing is restricted to 180cm. The S.B.C. of the soil is 280 kn/mm2 use M15 concrete.

2629

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Design a cantilever type retaining wall to retain sand for 4m above the ground. The sand fall slopes at the rate of 1 vertical to 2 horizontal. The weight of sand is 18000 N/m3, the angle of repose being 30. The safe bearing capacity of the soil is 200 kn/m2 at 1/25m below the ground level. Use m 15 concrete mix.

2836

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Design an underground tank of internal dimensions 6m x 3m x 3m. The soil surrounding the tank always remains dry. The tank shall be provided with a roof slab. The soil weighs 16000 N/m3 having an angle of repose of 30.

2113

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For the symmetrical continuous beam shown in figure, Prestressed with a force P = 1500 KN along parabolic curve as shown, compute the extreme fiber stresses over the central support for the uniformly distributed load of 24 kn/m. Use load balancing method.

2107

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1. 1. The mass of a chunk of moist soil is 34 Kg and its volume is 0.012 cu. Meter. After drying in an oven, the mass reduces to 14.25 Kg. Determine the water content, the density of moist soil, the dry density, void ratio, porosity and degree of saturation. Take G = 3.25

2779

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2. In a container filled with each of the following materials, at a porosity of 40%, determine the upward gradient required to cause the quick condition (a) Lead shot with a G = 13.75; (b) Fibre beads with G = 2.15; (c) Sand with a G = 2.32

2455

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3. A vane 12.5 cm long, 8.8 cm dia was pressed into a soft clay at the bottom of borehole. Torque was applied and the value at failure was 55 N-m. find the shear strength of the clay on a horizontal plane.

2140

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4. Differentiate between NC and OC soils. Draw curves for (i) Stress vs Strain (ii) Volume charge vs Strain (iii) Pore pressure vs Strain for these soils

2839

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5. Two long boundary walls run parallel to each other at a center to center distance of 1 meter apart. The width and height of the first wall are 0.30 m and 2.5m respectively. While those of the second are respectively 0.18m and 3.5m. Plot the distribution of vertical stress intensity due to walls on a horizontal plane, 1m below ground level. The walls have negligible depth of foundation and are made of brick masonry (y = 19.2 kN/m cu)

2147

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in the design of a rack and pinion with the pinion having a pitch of 4in and a teeth number of 45,how many teeth should a rack of length 196.850in have

2334

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how can i determine the gear ratio for a rack and pinion system if an electronic gate operated by an electric motor is to travel a distance of 5meters in 15 seconds.

2047

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How it the difference between force balance system and dispalacement balance system?

2096

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What out turn civil works

6821

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