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Name of the College : SREE CHAITANYA COLLEGE OF ENGINEERING
University : JNTUH
Department : Civil Engineering
Subject Code/Name : 07A82101/ADVANCED STRUCTURAL DESIGN
Year/Sem : IV/II
Website : scce.ac.in
Document Type : Model Question Paper

Download Model/Sample Question Paper : https://www.pdfquestion.in/uploads/scce.ac.in/4904-07A82101%20%20ADVANCED%20STRUCTURAL%20DESIGN.pdf

Advanced Structural Design Question Paper :

B.Tech IV Year II Semester Examinations, April/May-2012
(CIVIL ENGINEERING)
Time: 3 hours

Related : Sree Chaitanya College Of Engineering 07A70103 Environmental Engineering-II B.Tech Question Paper : www.pdfquestion.in/4903.html

Max. Marks: 80
Answer any five questions :
All questions carry equal marks :
Note: Relevant IS codes are permitted
1. A cantilever retaining wall is to be constructed for a road for the following requirements:
Height of wall from the bottom of base to top of stem = 6.0m
Superimposed load due to road traffic = 18kN/m2
Unit weight of fill = 18kN/m2
Angle of internal friction for fill material = 300
Allowable bearing pressure on ground = 160kN/m2
Coefficient of friction between concrete and ground = 0.4
Use M15 concrete Take sst = 140N/mm2.
a) Check the stability against sliding and over-turning
b) Design the stem portion. [8+8]

2. Design a circular tank with flexible base for capacity of 400000 liters. The depth of water is to be 4m, including a free board of 200mm. Use M20 concrete.
Give details of reinforcement. [16]

3. Design an overhead riveted steel rectangular flat bottom tank of capacity 70000 liters. The available width of plates is 1.22m and lengths up to 6.1m.The staging consist of 4 columns, spaced 4.88m x 3.66m and the bottom of the tank is 9.14m above the ground level. [16]

4. A coal bunker is to be designed to store 300kN of coal having a unit weight of 8kN/m3. The bunker should be square with 3 meters sides. The stored coal is to be surcharged at an angle of repose which is 30 degrees for coal. Adopt M25 grade concrete and Fe415 steel and design the side walls and hopper bottom and sketch the details of reinforcement. [16]

5. Design a R.C. Slab culvert for the following data:
Culvert to be on state highway
Width of bridge = 12.0m
No footpath provided
Conditions of exposure: ‘Moderate’
Materials : Concrete grade M25
Steel-Deformed bars to IS: 1786(grade Fe 415)
Clear span = 5.0m
Height of Vent = 3.0m
Depth of foundation = 1.35m
Wearing course: 56 mm thick asphaltic concrete. [16]
Note: (Consider IRC class ‘AA’ & Class ‘A’ loading for computing Live loads)

6. Design a gantry girder for a mill building to carry an electric overhead travelling crane, having the following data:
Crane capacity = 250kN
Weight of crane excluding crab = 200kN
Weight of crab = 60kN
Span of Crane between rails = 20m
Minimum hook approach = 1.1m
Wheel base = 3.4m
Span of gantry girder = 7m
Mass of rail section = 30kg/m
Height of rail section = 75mm
Take fy =250N/mm2 and E = 2 x 105 N/mm2. [16]

7. A Pratt truss girder through bridge is provided for single broad gauge track. The effective span of bridge is 50m. The cross girders are spaced 5m apart. The stringers are spaced 2m between center lines. 0.60kN per meter stock rails and 0.40kN per meter check rails are provided.

Sleepers are spaced at 0.45m from centre to centre and are of size 2.8m x 250mm x 250 mm. Weight of timber may be assumed as 7.50kN per cubic meter. The main girders are provided at a spacing of 7m between their centre lines.

Design the central top chord member and bottom chord member and the vertical and diagonal of central panel. The bridge is to carry standard main line loading (Figure 1). [16]

8.a) What does the seismic code IS-13920:1993 deal with? Why is it necessary to incorporate ductile detailing for Earth quake resistant design?
b) What is special confining reinforcement? Where should we provide it? [16]

Advanced Structural Design Set 2 :
1. Design a cantilever retaining wall to retain earth embankment 3m high above ground level. The unit weight of earth is 18kN/cum and its angle of repose is 30 degrees. The embankment is horizontal of at its top.

The safe bearing capacity of soil may be taken as 100kN/sqm and the coefficient of friction between soil and concrete as 0.5. Use M20 grade concrete and Fe415 steel. [16]

2. Design a square water tank for 300 KL capacity. Adopt M25 and Fe415 grades of concrete and steel respectively. [16]
3. Design an elevated circular steel tank to hold 250000 liters of water. The staging and the circular supporting beam need not be designed.