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BY: -Gur jee t Kumar ( 10102035 )H i manshu Garg (10102037 )
Rup inder pa l S ingh (10102068)
COMPUTER AIDED ANALYSIS AND DESIGN OF
MULTI-STOREYED BUILDINGS
MENTOR-Dr. A. P. Singh,Professor,Department of Civil Engineering ,NIT Jalandhar
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PROBLEM STATEMENT
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Utility of building : Residential buildngNo of storeys: G+8Shape of the building: Rectangular No.of staircases : 9
GEOMETRIC DETAILS:-Floor Height- 12 ftDepth of Foundation- 5 ft below ground level
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INTRODUCTION
DESIGN OF BEAMSDESIGN OF COLUMNSDESIGN OF SLABSDESIGN OF PILE FOUNDATIONDESIGN OF RAFT FOUNDATIONCOMPARISON OF RAFT AND PILE
FOUNDATIONDesign of Beams and Columns is done through STAAD PRO.
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ANALYSIS AND DESIGN
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Skeleton view of structure-
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PLAN OF STRUCTURE
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ELEVATION OF STRUCTURE
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3D Rendered View-
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PROPERTIES ASSIGNED
All columns = 0.45 * 0.35 m All beams = 0.35 * 0.45 m All slabs = 0.15 m thick Raft Foundation Area=675 m2
Raft foundation Thickness=600 mmPile Diameter = 300mmPile Cap Depth = 750 mmParapet = 0.12 m thick RCC (3 KN/m Load)
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LOADS ASSIGNED
Dead Load = 6 KN/m2Member Load = 6.5 KN/mMember Load due to Parapet Wall = 3 KN/mLive Load on Floor = 4 KN/m2Live Load on Roof = 2 KN/m2Seismic Load- ZONE IV(Zone Factor= 0.24) Response Reduction Factor = 5 Importance Factor = 1.5 Damping Ratio = 5
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ANALYSIS OF STRUCTURE
Bending MomentsShear ForceSupport ReactionsDeflection Values
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DESIGN
Design Parameters Grade of Concrete = 30 Mpa Grade of Steel = 415 Mpa Clear Cover = 25 mm
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Design Specifications Design Beam Design Column
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DESIGN RESULTS
BEAM IN N-S DIRECTION
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IN E-W DIRECTION
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COLUMN
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SLAB
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RAFT FOUNDATION Bearing Capacity of Soil=140 KN/m2
Area Provided= 675 m2
Upward Bearing Pressure=122 KN/m2
Total Load on Raft=82290 KN Reinforcement in E-W Direction=10mm@100mm c/c (both at top and bottom) Reinforcement in N-S Direction=16mm@100mm c/c(at top) 10mm@100mm c/c(at bottom)
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STRAP BEAM
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PILE FOUNDATION (Type 1)
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PILE FOUNDATION (TYPE 2)
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COMPARISON OF RAFT AND PILE FOUNDATION
1.RAFT FOUNDATION- Volume of Concrete = 405 m3
Quantity of Steel - 10 dia. = 12.3 tonnes 16 dia. = 11.4 tonnes 25 dia. = 12.2 tonnes 12 dia. = 6.2 tonnes Total Quantity of Steel = 42.1 tonnes 2.PILE FOUNDATION- Volume of Concrete = 320 m3
Quantity of Steel - 25 dia. = 9.55 tonnes 20 dia. = 3.77 tonnes 12 dia. = 12.70 tonnes 10 dia. = 2.12 tonnes 6 dia. = 2.95 tonnes Total Quantity of Steel = 31.09 tonnes Hence Pile Foundation is more economical.
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REFERENCES
IS 875 – INDIAN STANDARD CODE FOR LOADSIS 456 – INDIAN STANDARD CODE FOR PLAIN AND
REINFORCED CONCRETEIS 1893-2002 –REVISED INDIAN STANDARD CODE
FOR SEISMIC LOADSIS 13920- INDIAN STANDARD CODE FOR DUCTILE
DETAILING OF REINFORCED STRUCTURESTAAD PRO V8iAUTO CAD-2013MICROSOFT EXCEL“ REINFORCED CONCRETE DESIGN ” BOOK BY
S.N SINHA