Exam Details
| Subject | advanced structural design | |
| Paper | ||
| Exam / Course | b.tech | |
| Department | ||
| Organization | Vardhaman College Of Engineering | |
| Position | ||
| Exam Date | November, 2017 | |
| City, State | telangana, hyderabad |
Question Paper
(AUTONOMOUS)
B. Tech VIII Semester Supplementary Examinations, November 2017
(Regulations: VCE-R11/R11A)
ADVANCED STRUCTURAL DESIGN
(Civil Engineering)
Date: 14 November, 2017 AN
Time: 3 hours
Max Marks: 75
Answer ONE question from each Unit
All Questions Carry Equal Marks
Unit I
1.
Design a cantilever retaining wall to retain an earth embankment with a horizontal top for a height of 4 m above the ground level. Density of earth=18kN/m3. Angle of internal friction is 300S. B.C of soil=200kN/m2. Co-efficient of friction between soil and concrete=0.5 Adopt M20 grade concrete and Fe-415 HYSD bars.
15M
2.
Design a rectangular R.C.C water tank resting on the ground with an open top for a capacity of 80000litres. The inside dimensions of the tank may be taken as (6mx4m) respectively. Design the side walls of the tank using M20 grade concrete and Fe-250 grade steel.
15M
Unit II
3.
Derive the expression for shallow bin based on AIRY's theory.
8M
Design a bunker (side walls only) to store the 300KN of Coal for the following data:
Unit weight of Coal=8340N/m3, Angle of repose is 300, permissible stress in steel is 230N/mm2 and M20 grade of concrete.
7M
4.
An R.C Chimney having a mean diameter of 2.5m is reinforced with 60 bars of 16mm diameter. Assuming an effective wind pressure of 1400N/m2 on projected area, determine the maximum stress in concrete and steel at section 25.0m from top. Density of RCC is 24000N/m3.
15M
Unit III
5.
Design a simply supported plate girder supporting a uniform load of 20kN/m over a span of 18m. Adopt the yield stress of steel as 250N/mm2. Design the main cross section of the girder and the bearing and intermediate stiffeners adopting a web plate 8mm thick. Sketch the plate girder showing the details of cross section and the stiffeners.
15M
6.
Design a welded plate girder of 30m span to support a uniformly distributed live load of 70kN/m over the span using the following data:
Effective span of the girder=30m
Distributed live load=60kN/m
Yield stress of steel=250N/mm2
Top flange is restrained laterally. Design the cross sectional details of the plate girder to conform to the specifications of IS: 800-2007.
15M
Unit IV
7.
Explain briefly on the selection for type of bridge and economical span length.
8M
Explain the type of loading on bridges.
7M
Cont…2
8.
Design the RCC slab bridge decks for NH to suit the following data:
Carriage way-2 lane (7.5m wide)
Foot Path 1m on either side
Clear Span 6.0m; Wearing Coat =80mm; Width of Bearing =0.4m; 2.84
Use M25 grade of concrete and Fe415 steel. Class AA tracked vehicle load.
15M
Unit V
9.
A 10-storeyed RCC special moment resisting frame (SMRF) conforming to ductile detailing provisions residential building with importance factor 1 is located in zone V. The height of each storey is 3m. The area of each floor/roof is 576m2 with a dead load as 2kN/m2. The live load on each floor is 3kN/m2 and the live load on roof is 1.5kN/m2. The Structure is on medium soil. The Damping in the structure is estimated to be 8.5%. Determine the design seismic forces on the structures by equivalent static force method.
15M
10.
How do you improve the ductility of an R.C.C building for earthquake and wind forces as per codal provisions?
15M
B. Tech VIII Semester Supplementary Examinations, November 2017
(Regulations: VCE-R11/R11A)
ADVANCED STRUCTURAL DESIGN
(Civil Engineering)
Date: 14 November, 2017 AN
Time: 3 hours
Max Marks: 75
Answer ONE question from each Unit
All Questions Carry Equal Marks
Unit I
1.
Design a cantilever retaining wall to retain an earth embankment with a horizontal top for a height of 4 m above the ground level. Density of earth=18kN/m3. Angle of internal friction is 300S. B.C of soil=200kN/m2. Co-efficient of friction between soil and concrete=0.5 Adopt M20 grade concrete and Fe-415 HYSD bars.
15M
2.
Design a rectangular R.C.C water tank resting on the ground with an open top for a capacity of 80000litres. The inside dimensions of the tank may be taken as (6mx4m) respectively. Design the side walls of the tank using M20 grade concrete and Fe-250 grade steel.
15M
Unit II
3.
Derive the expression for shallow bin based on AIRY's theory.
8M
Design a bunker (side walls only) to store the 300KN of Coal for the following data:
Unit weight of Coal=8340N/m3, Angle of repose is 300, permissible stress in steel is 230N/mm2 and M20 grade of concrete.
7M
4.
An R.C Chimney having a mean diameter of 2.5m is reinforced with 60 bars of 16mm diameter. Assuming an effective wind pressure of 1400N/m2 on projected area, determine the maximum stress in concrete and steel at section 25.0m from top. Density of RCC is 24000N/m3.
15M
Unit III
5.
Design a simply supported plate girder supporting a uniform load of 20kN/m over a span of 18m. Adopt the yield stress of steel as 250N/mm2. Design the main cross section of the girder and the bearing and intermediate stiffeners adopting a web plate 8mm thick. Sketch the plate girder showing the details of cross section and the stiffeners.
15M
6.
Design a welded plate girder of 30m span to support a uniformly distributed live load of 70kN/m over the span using the following data:
Effective span of the girder=30m
Distributed live load=60kN/m
Yield stress of steel=250N/mm2
Top flange is restrained laterally. Design the cross sectional details of the plate girder to conform to the specifications of IS: 800-2007.
15M
Unit IV
7.
Explain briefly on the selection for type of bridge and economical span length.
8M
Explain the type of loading on bridges.
7M
Cont…2
8.
Design the RCC slab bridge decks for NH to suit the following data:
Carriage way-2 lane (7.5m wide)
Foot Path 1m on either side
Clear Span 6.0m; Wearing Coat =80mm; Width of Bearing =0.4m; 2.84
Use M25 grade of concrete and Fe415 steel. Class AA tracked vehicle load.
15M
Unit V
9.
A 10-storeyed RCC special moment resisting frame (SMRF) conforming to ductile detailing provisions residential building with importance factor 1 is located in zone V. The height of each storey is 3m. The area of each floor/roof is 576m2 with a dead load as 2kN/m2. The live load on each floor is 3kN/m2 and the live load on roof is 1.5kN/m2. The Structure is on medium soil. The Damping in the structure is estimated to be 8.5%. Determine the design seismic forces on the structures by equivalent static force method.
15M
10.
How do you improve the ductility of an R.C.C building for earthquake and wind forces as per codal provisions?
15M
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