computer aided analysis and design of multi story building

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

PROBLEM STATEMENT

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

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.

ANALYSIS AND DESIGN

Skeleton view of structure-

PLAN OF STRUCTURE

ELEVATION OF STRUCTURE

3D Rendered View-

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)

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

ANALYSIS OF STRUCTURE

Bending MomentsShear ForceSupport ReactionsDeflection Values

DESIGN

Design Parameters Grade of Concrete = 30 Mpa Grade of Steel = 415 Mpa Clear Cover = 25 mm

Design Specifications Design Beam Design Column

DESIGN RESULTS

BEAM IN N-S DIRECTION

IN E-W DIRECTION

COLUMN

SLAB

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)

STRAP BEAM

PILE FOUNDATION (Type 1)

PILE FOUNDATION (TYPE 2)

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.

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