Download PTU M.Tech. Civil Engg 1st Semester 74241 ADVANCED STRUCTURAL DESIGN Question Paper

Roll No.

Total No. of Questions : 08

Total No. of Pages : 02

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M.Tech. (Civil Engg.) (2016 Batch) (Sem.-1)

ADVANCED STRUCTURAL DESIGN

Subject Code : MTCE-205

M.Code: 74241

Time: 3 Hrs.

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Max. Marks : 100

INSTRUCTION TO CANDIDATES :

1. Attempt any FIVE questions out of EIGHT questions.
2. Each question carries TWENTY marks.

1. Design the stem of a cantilever retaining wall for the following requirements:

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   • Height of wall above ground level - 5 m
   • Superimposed load due to road traffic - 18 kN/m²
   • Unit weight of fill - 18 kN/m²
   • Angle of internal friction for fill material - 28°
   • Allowable bearing pressure on ground - 150 kN/m²

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   • Coefficient of friction between concrete and ground - 0.4
   • Height of parapet wall on top of stem - 1 m

   Use M-20 concrete and Fe-415 grade steel.

2. Design a flat slab for a garage using the following data :

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   • Loading - 10kN/m²
   • Column grid - 8 m × 8 m
   • Materials - M-20 grade concrete, Fe-415 grade HYSD bars

   Design the interior panel of slab with drops. Design the flat slab panel and sketch the reinforcement details.

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3. a) Discuss substitute frames and loading conditions for maximum moment values of different critical points of a building frame.

   b) What are the conditions under which a frame sways?

4. Design a symmetrical deep beam one half of which is shown in figure 1. It supports two loads kN at 400 mm from supports on each side. Assume fy = 415 N/mm², grade 25 concrete and effective span 1650 mm.

   FIG.1

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5. A simply supported rectangular slab 4.5 m long and 3 m wide carries an ultimate load of 15 kN/m². Determine the design moments for case when the moment of resistance of the short span is 30% greater than that in the direction of long span.

6. Explain the portal method for analysing a building frame subjected to horizontal forces.

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7. A two span intermediate frame of a multi-storeyed building is shown in figure 2. The frames are spaced at 5 m intervals. The dead load and live load per meter run of the beam may be taken as 15kN/m and 20 kN/m respectively. Analyse the frame using two cycle method of moment distribution. If wind loads of 15 kN and 30 kN are acting at joint A, B and C respectively. Analyse the frame by portal method. Assume that all the columns have equal area of cross section for the purpose of analysis.

   FIG.2

8. A square slab is simply supported on three sides and is free on the fourth side. If the moment capacities are equal in both directions, calculate the collapse load.

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NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any page of Answer Sheet will lead to UMC against the Student.

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