we are providing you the solution of bihar engineering university pyq of civil engineering. @beu-bih.ac.in . BEU exam of 7 th semester is from 8th of may . To excel in your exam revise PYQ OF BIHAR ENGINEERING UNIVERSITY.
1. Explain flexible and rigid pavements and bring out the points of difference.
2(A).what are the various factors to be considered in pavement design? discuss the signifance of each.
2(B). Determine the spacing between contraction joints for 3-5 m slab width having thickness of 20 cm and f-1-5, for the following two cases: (i) For plain cement allowable Se= 0.8 kg/cm² concrete, (ii) For reinforced cement concrete, 1-0 cm dia bars at 0·30 m spacing. Consider W (unit CC 2400 kg/m³)
3(A).Explain ESWL and the concept in the determination of the equivalent wheel load.
4(A). Discuss the effects of repeated applications of loads on pavements. explain equivalent wheel load factors for load repetitions.
5(A). Explain how climatic variation affects pavement design and performance.
5(B). The width of expansion joint gap is 2.5cm in a cement concrete pavement. if the laying temperature is 10 degree celsius and the maximus slab temperature in summer is 54 degree celsius. calculate the spacing between expansion joints. assume coefficient of termal expansion of concrete as 10 * 10^-6 per celsius
6(a). Explain how the elastic modulii of subgrade and base course are estimated using plate bearing test data
6(b). Compute the radius of relative stiffness of 15 cm thick cement concrete slab from the following data: Modulus of elasticity of cement concrete is 210000 kg/cm² Poisson’s ratio for concrete = 0.13 Modulus of subgrade reaction k=(i) 3.0 kg/cm³ and (ii) 7-5 kg/cm³
7(a). Discuss the importance of gross wheel load and contact pressure in stress distribution pattern and in pavement design.
7(b) Calculate the stresses at interior, edge and corner regions of a cement concrete pavement using Westergaard’s stress equations. Use the following data: Wheel load, P= 5100 kg concrete, E-3-0×103 kg/cm² Modulus of elasticity of cement Pavement thickness, h= 18 cm Poisson’s ratio of concrete, μ=0-15 Modulus of subgrade reaction, k = 6.0 kg/cm³ Radius of contact area, a = 15 cm
8. what do you understand by frost action? discuss the effects and factors on which the intensity of frost action depends. suggest measures to prevent or reduce the adverse effect.
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