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CE-311 Structural Analysis CE-311 Hall Ticket Number: III/IV B.Tech (Regular) DEGREE EXAMINATION November , 2015 (First Semester) Structural Analysis - I (CIVIL ENGINEERING) Time: Three Hours Maximum : 60 Marks Answer Question No.1 compulsorily. (1X12 = 12 Marks) Answer ONE question from each unit. (4X12=48) A1. Answer all questions (1X12=12 Marks) 1. a) What do you mean by virtual work? b) Write the expression for strain energy in members under bending. c) State max wells law of reciprocal deflection d) What is the effect of sinking of support in a fixed beam? Draw a sketch indicating the effects e) A fixed beam of span ‘l’ is subjected to a uniformly distributed load of w/unit length . Draw the bending moment diagram. f) State the applications of Castiglionos theorems g) What is the difference between cantilever and propped cantilever beam? h) A pin-jointed plane truss is deficient. How to make it redundant? i) A fixed beam is subjected to a clock-wise couple at the centre? Draw the shear force diagram. j) Can a fixed beam be analyzed by Clapeyron’s theorem of three moments? Give the reason k) What do mean by redundancy ? l) Practically where do you observe sinking of support? UNIT I 2. A beam ABC of length 8m is supported at A and B 6m apart with an overhang BC of 2m. it carries two point loads of 60kN and 20kN at distances 2m and 8m respectively support A. using virtual work method find out deflections under load points. Take E= 2 x105 N/mm2, I= 2x108 mm4. (12m) (OR) 3. A simply supported beam of span 6m is subjected to a uniformly distributed load of 20kN/m over the entire span and a point load of 60kN at 2m from left support using Castigliano’s first theorem. Determine the deflection under 60kN load. Take E= 2 x105 N/mm2, I= 2x108 mm4. (12m) UNIT II 4. A uniformly distributed load of 60kN/m, 8m long, crosses girder of 30m span from left to right calculate the maximum shear force and bending moment at a section 12m from left hand support. Also find out the maximum shear and the absolute maximum bending moment in the beam. (12m) (OR) 5. Tree wheel loads 35kN,140kN and 140kN spaced 4.5m apart from each other ,with the 140kN load in the lead pass over a simply supported bridge girder of span 24m . Determine the maximum shear and moment developed at a point 9m from left support. What is the absolute maximum moment in the girder and where does it occur? (12m) UNIT III 6. Abeam AB 6m long is fixed at A and simply supported at B and carries a point of 200kN at 4m from A. Find the fixing moment at A and the reactions at the two supports .Draw shear force and bending moment diagrams. (12m) (OR) 7. A continuous beam ABC fixed at the ends is loaded as shown in Fig.(1). Find the reaction and support moments Draw also Bending moment and shear force diagrams. (12m) UNIT IV 8. Analyse the hinged base portal frame shown in Fig.(6) by strain energy method. (12m) (OR) 9. Determine the forces in the members of the pin-jointed frame shown in Fig.(3). Sectional area of the members are as follows. (12m) Horizontal members :1000mm2. Vertical members : 1300mm2 Diagonal members :1400mm2 Hall Ticket Number CE-312 III/IV B.TECH (REGULAR) DEGREE EXAMINATION NOVEMBER, 2015 (FIRST SEMESTER) WATER RESOURCE ENGINEERING –I (CIVIL ENGINEERING) Time: Three Hours Maximum: 60 Marks Answer Question No.1 compulsory. (1*12=12 Marks) Answer ONE question from each unit. (4*12=48) 1. Answer all questions (12*1= 12 Marks) a) What are the various forms of precipitation? b) Write the equation for Dalton’s Law of Evaporation & explain the terms. c) Distinguish between hyetograph and hydrograph. d) Define Coefficient of Transmissivity. e) Write the equation for Darcy’s law. f) What is Regime channel? g) Write a short note on storage reservoir. h) What is flood routing? i) What are the limitations of Bligh’s theory? j) List various methods of measuring velocity. k) Write the Stage- Discharge relationship of a stream flow. l) List some anti water logging measures. UNIT – I 2. a) Explain briefly various methods for measurement of rainfall. (8M) b) Discuss various factors affecting infiltration. (4M) (OR) 3. a) What is a Unit Hydrograph? What are the limitations of unit hydrograph? (4M) b) The direct runoff hydrograph resulting from a 5.0cm of effective rainfall of 6 h duration is given below. Determine the area of the catchment and the ordinates of the 6h unit hydrograph. (8M) Time 0 6 12 18 24 30 36 42 48 54 60 66 72 in hrs Direct runoff 0 25 175 320 360 310 230 165 105 60 60 10 0 m3/sec UNIT – II 4. a) Define porosity, specific yield and specific retention. (6M) b) Calculate the discharge from a tube well of radius 10cm penetrating fully into a confined aquifer of 20m thick and having a permeability of 40m/day. The draw down in the well is 3m and zero drawdown is at 300m distance from the well. (6M) (OR) 5. a) Explain design procedure of channel using Kennedy’s theory. (6M) b) A channel section has to be designed for the following data using Lacey’s theory. (6M) Discharge = 20cumecs, Silt factor = 1.00, Side slope =0.5:1. Find also longitudinal slope. UNIT – III 6. a) Describe the procedure for determination of reservoir capacity for a specific yield. (6M) b) Explain with neat sketch various zones of storage in a reservoir. (6M) (OR) 7. a) Define a diversion head work. Explain the purpose of scouring sluices in diversion head work. (4M) b) Describe the design of impervious floor for sub surface flow using Bligh’s theory. (8M) UNIT – IV 8. a) Explain stream flow measurement by Ultrasonic method. (6M) b) Discuss briefly measurement of velocity using Pitot tube and current meter. (6M) (OR) 9. a) Why is lining of canal necessary? Classify canals. (4M) b) Design a trapezoidal shaped concrete lined channel to carry a discharge of 50 cumecs at a slope of 30cm/km. The side slopes of channel are 1.5:1. The value of N may be taken as 0.016. Assume b/d=8. (8M) CE-313 Hall Ticket Number: III/IV B.TECH (REGULAR) DEGREE EXAMINATION DECEMBER, 2015 (First Semester) Design of Concrete Structures - I (CIVIL ENGINEERING) Time: Three Hours Maximum : 60 Marks Answer ONE question from each unit. (5X12=60) Notes:1. Assume suitable data if necessary. 2. IS456 will be supplied in the examination. UNIT – I 1. a) Write the objectives of structural design. [4M] b) Briefly explain different codes are used to design of a concrete structures. [4M] c) Write a short note on modes of failures. [4M] (OR) 2. A doubly reinforced rectangular beam of overall size 230 mm wide × 550 mm depth is reinforced with 2 no. 20 mm diameter bars at top and 4 no. 20 mm diameter bars at bottom. Find out the moment of resistance of the beam. If this beam is subjected to a moment of 72 kNm, Find the maximum stresses developed in concrete and steel. Consider d = 500 mm, d’=50 mm. The materials are M20 grade concrete and HYSD reinforcement of grade Fe 415. [12M] UNIT – II 3. a) Derive the actual depth of N.A (Xu) and M.R of singly reinforced section. [6M] b) An R.C.C beam of size 230mm wide × 460mm effective depth is reinforced with 3 no. 32mm diameter bars. Find out the moment of resistance of beam. Also state type of beam. The materials are M30 grade concrete and HYSD reinforcement of grade Fe 415. [6M] (OR) 4. A tee beam of effective flange width 1000mm, thickness of slab 100mm, width of rib 250mm and effective depth of 360mm is reinforced with 6-25mm diameter bars as a tension reinforcement and 2- 20mm diameter bars as a compression reinforcement. Calculate factored moment resistance. The materials are M20 grade concrete and HYSD reinforcement of grade Fe 415. [12M] UNIT – III 5. Determine the shear capacity of the beam section 230mmX720mm effective depth reinforced with 5no of 16mm diameter bars of Fe415 grade steel (3 straight+ 2 bent at 45 degree) and 8 mm stirrups of Fe415 at a spacing of 300mm c/c. Concrete grade is M20. [12M] (OR) 6. A simply supported beam of span 5m carries central concentrated load of 90Kn. The size of the beam is 250mmX600mm overall depth with a R/F of 3no of 20mm diameter bars are provided as a tension reinforcement. The materials used are M20 & Fe415. Calculate short term deflection. [12M] UNIT – IV 7. A simply supported beam of span 6m is subjected a udl of 25kn/m inclusive of its own weight. Design the suitable cross section. The materials are M20 grade concrete and HYSD reinforcement of grade Fe 415. [12M] (OR) 8. A simply supported rectangular slab is resting on four edges with a span of 12.65m and 4m are respectively. Live load on the slab is 4Kn/Sqm. Materials used are M20 grade concrete and Fe415 grade steel. Design the slab. [12M] UNIT – V 9. Design a rectangular water tank of size 5m x 4m x 6m deep resting on firm ground. The materials are M30 grade concrete and HYSD reinforcement of grade Fe 415 [12M] (OR) 10. Design an underground water tank of size 4m x 6m x 4m for the following data: 3 0 Type of soil: Submerged sandy soil, with γS = 16kN/m , φ = 30 .
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