Design of multistorey building

21,426 views 36 slides Apr 15, 2015
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About This Presentation

It is a multi storeyed building it is designed by manually


Slide Content

DESIGN AND ANALYSIS OF MULTI-STORIED BUILDING By : D.J.P.K.SIVAJI (11AP1A0107) P.S.S.VIJAYA VARMA (11AP1A0122) P.S.PAVAN KUMAR (11AP1A0115) B.ADITYA (11AP1A0104) G.NAGA SRINIVASULU (11AP1A0109) P.PRUDVI RAJU (11AP1A0124)

CONTENTS 1. INTRODUCTION 2. CODES 3. STATEMENT OF THE PROJECT 4. LOADS ON THE STRUCTURE 5. OBJECTIVE OF STRUCTURAL DESIGN 6. DESIGN AND ANALYSIS 7. REFERENCES

INTRODUCTION Our project is based on the design and analysis of the multi-storied building. Live loads and dead loads are taken into consideration and analysis is done manually . Notation adopted through out the project is same as in IS-456-2000.

STATEMENT OF THE PROJECT :

1.Utility of building : Residential building 2.Shape of the building: Rectangular 3.Type of walls : Brick wall 4. No . of flats for each floor : G+14

Geometric details : Floor Height : 3.0 M Height of Plinth : 0.6 M above G.L Depth of Foundation : 6 ft below G.L

Material details : Concrete Grade : M15, M20 Grade of steel : HYSD REINFORCEMENT of Grade Fe415 Bearing Capacity of Soil : 400 KN/M 2 Type Of Construction : R.C.C framed structure

DIFFERENT TYPES OF LOADS ON STRUCTURE Dead loads Imposed loads Wind loads

Dead loads Involves self weight of RCC slab Beams & columns Plinth Walls

Imposed loads Imposed also known live loads Load over the floor i.e. load of persons it is calculated as 0.5 kN/m 2 This load is applied over the length of structure

Wind loads Wind is air in motion Intensity of wind and exposure are applied in the directions as required

TYPES OF LOADS IMAGE VIEW

Load combinations The structure should be analysed for combination of loads as in practice we have number of loads in various directions act Some of the combinations to be checked are DD + LL = 1.5 DD + LL + WL = 1.2

Density of materials used MATERIAL DENSITY i) Plain concrete 24.0 KN/m3 ii) Reinforced 25.0 KN/m3 iii) Flooring material 20.0KN/m3 iv) Brick masonry 19.0KN/m3

OBJECTIVES OF STRUCURAL DEIGN Structure designed should satisfy the criteration of ultimate strength. Structure should satisfy the serviceability It should satisfy the stability against overturning , sliding , and buckling.

The main objective of the design are Foundation design Column design Beam design Slab design

Structural design For slabs , Depth is 120 mm provided Factored Load on slab is 9KN/m For beams, after calculations are done. the Dimensions of beam is 230*420mm

Shape of column is Rectangular For columns, the dimension of column is 230*350mm & 230*450mm For footings, the bearing capacity of soil is 400Kn/m 2 To provide the dimension of footing is 2000*2000mm

DESIGN OF THE SLAB If Lx/Ly < 2 two way slab. > 2 one way slab. LOADS ON SLABS : Dead load = thickness * unit weight of concrete. Live Load for slab = 2.5 CALCULATION OF B.M : M x = α x W L x 2 M y = α y W L Y 2 Check for depth d = √ ( M u /2.7*b)

REINFORCEMENT : M u = 0.87 f y A s t d [1- A st *f y /bd*f ck ] Max Dia of the bars = 10mm Spacing of the bars 300 mm c/c CHECK FOR DEVELOPMENT LENGTH :- I d = (Ø σ s )/(4 Ʈbd) CHECK FOR SHEAR V u / b d

DESIGN OF BEAMS Max Dimensions of the beam 230*420mm 230*520mm Max Dia of the beam = 12mm HYSD bars. Clear cover of the beams = 25mm.

DESIGN OF COLUMNS Max dimensions of the columns 230*350mm 230*450mm Max diameter of the bar = 16mm Clear cover = 40mm

FOOTINGS

STAIR CASE Type : Open – newel stair case No. of flights = 3 No. of steps for flight = 7

ANALYSIS Analysis of frames is done by using KANIS Method. The KANIS Method to be simple for multi storeyed building. Analysis is done for RCC structure M ab =MF ab +2M’ ab +M ’ ba M ba =MF ba +2M’ ba +M’ ab

DESIGN OF WATER TANK Capacity required 32000 lit wall thickness 200 mm Area of the tank 2.6 x 3.6 m 2 Total Height of the water tank 3.96 m Total load 4 KN/M 2 Reinforcement provided 8 mm Ø bars at 240 mm c/c

RCC analysis Code is assigned as IS:456-2000 The parameters are assigned to the structure Commands to be given are concrete design

Conclusions It is Manual design. we can do this analysis within no time but the basic thing is to know the concept behind it. The same result can be achieved using the software like “Staad-Pro”.

REFERENCES Structural analysis by THANDAVA MURTY IS456-2000 CODE Design of RCC structures by N.KRISHNAM RAJU

Thank you..!

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