This document outlines the process and methods used to analyze and design a multi-story residential building using STAAD Pro software. It includes chapters on software used, literature review of analysis methods, load calculations, design of building elements like beams, columns, slabs and footings. Load combinations are defined according to Indian standards. Material properties and design assumptions are provided. The document then describes the analysis and design of each building element and provides sample output diagrams from STAAD Pro.

1. CONTENTS
Abstract
Assumptions and notations
Symbols
CHAPTER 1 INTRODUCTION 1-4
1.1 STATEMENT OF THE PROJECT 2
1.2 DESIGN OF MULTISTORIED RESIDENTIAL BUILDING 3
1.3 LIMIT STATE METHOD 3-4
CHAPTER 2 SOFTWARES 5-6
2.1 STAAD 5
2.2 STAAD FOUNDATION 5-6
CHAPTER 3 LITERATURE REVIEW 7-9
3.1 METHOD OF FLEXIBILITY COEFFICIENTS 7
3.2 SLOPE DISPLACEMENT EQUATIONS 7
3.3 KANI’S METHOD 8
3.4 APPROXIMATE METHOD 9
3.5 MATRIX ANALYSIS OF FRAMES 9
CHAPTER 4 LOADINGS 10-17
4.1 DEAD LOAD 12-13
4.2 LIVE LOAD 13-14
4.3 WIND LOAD 14-16
4.4 FLOOR LOAD 16-17
4.5 COMBINATION LOAD 17

2. CHAPTER 5 BEAMS 18-25
5.1 BEAMS 18
5.1.1 SINGLY REINFORCED BEAM 18
5.1.2 DOUBLY REINFORCED BEAM 18
5.1.3 FLANGED BEAMS 18
5.2 DESIGN OF BEAM 19-25
CHAPTER 6 COLUMNS 26-33
6.1 POSITIONING OF COLUMN 26-27
6.2 NECESSITY OF REINFORCEMENT 27
6.3 TYPES OF COLUMN 27-28
6.4 COLUMN DESIGN 28-33
CHAPTER 7 SLAB 34-37
7.1.1 TYPES OF SLABS 34
7.1.2 ONE WAY SLAB 34
7.1.3 TWO WAY SLAB 35
7.1.4 FLAT SLAB 35
7.1.5 CANTILEVER SLAB 36
7.1.6 SLAB DESIGN 36-37
CHAPTER 8 FOOTINGS 38-63
8.1 TYPES OF FOOTINGS 38-39
8.2 FOUNDATION DESIGN 40-63
CHAPTER 9 STAIRCASE DESIGN 64-66
CHAPTER 10 STAAD OUTPUT 67-92
CHAPTER 11 CONCLUSION 93
CHAPTER 12 REFERENCE 94

3. LIST OF FIGURES
S.NO TITLE PAGE NO
1. Dead load 13
2. Live load 14
3. Wind load 16
4. Floor load 17
5. Beam position 21
6. Reinforcement details of beam 21
7. Deflection details of beam 22
8. Section force details of beam 22
9. Column position 30
10. Reinforcement details of column 30
11. Deflection details of column 31
12. Section force details of column 31
13. One way slab 34
14. Two way slab 35
15. Distribution of loads in slabs 36
16. Isolated footing 38
17. Combined footings 39
18. Strap & raft footings 39
19. Placement of column 41
20. Elevation of reinforcement in footing 63
21. Plan of reinforcement in footing 63
22. Bending moment 90
23. Shear force 91
24. Rendering view of whole structure 92

4. ABSTRACT
In order to compete in the ever growing competent market it is very important for a
structural engineer to save time. As a sequel to this an attempt is made to analyze and design a
Multistoried building by using a software package staad pro.
For analyzing a multi storied building one has to consider all the possible loadings and see
that the structure is safe against all possible loading conditions.
There are several methods for analysis of different frames like Kani’s method, Matrix
method, Slope deflection method, Moment distribution method etc,.
The present project deals with the analysis of a multi storied residential building of G+4
consisting of 5 apartments in each floor.
STAAD Pro with its new features surpassed its predecessors and compotators with its data
sharing capabilities with other major software like AutoCAD and MS Excel.
We conclude that Staad pro is a very powerful tool which can save much time and is very
accurate in Designs. Thus it is concluded that Staad pro package is suitable for the design of a
multistoried building.

5. Assumptions and Notations used:
The notations adopted throughout the work is same IS-456-2000.
Assumptions in Design:
1.Using partial safety factor for loads in accordance with clause 36.4 of IS-456-2000 as ϒt=1.5
2.Partial safety factor for material in accordance with clause 36.4.2 is IS-456-2000 is taken as 1.5
for concrete and 1.15 for steel.
3.Using partial safety factors in accordance with clause 36.4 of IS-456-2000 combination of
load.
D.L+L.L. 1.5
D.L+L.L+W.L 1.2
Density of materials used:
MATERIAL: DENSITY
i) Plain concrete 24.0KN/m3
ii) Reinforced 25.0KN/ m3
iii) Flooring material(c.m) 20.0KN/ m3
iv) Brick masonry 19.0KN/ m3
LIVE LOADS: In accordance with IS. 875-86
i) Live load on slabs = 3.0KN/ m2
ii) Live load on passage = 4.0KN/ m2
iii)Live load on stairs = 4.0KN/ m2

6. DESIGN CONSTANTS:
Using M20 and Fe 415 grade of concrete and steel for beams, slabs, footings, columns.
Therefore:-
Fck = Characteristic strength for M20 = 20N/mm2
Fy = Characteristic strength of steel = 415N/mm2
Assumptions Regarding Design:
i) Slab is assumed to be continuous over interior support and partially fixed on edges,
due to monolithic construction and due to construction of walls over it.
ii) Beams are assumed to be continuous over interior support and they frame in to the column at
ends.
Assumptions on design:-
1) M20 grade is used in designing unless specified.
2) Fe 415 is used for the main reinforcement.
3) Fe 415 and steel is used for the distribution reinforcement.
Symbols:
The following symbols has been used in our project and its meaning is clearly mentioned
respective to it:
A -Area
Ast - Area of steel
b - Breadth of beam or shorter dimension of rectangular column
D -Overall depth of beam or slab
DL -Dead load
d1 -effective depth of slab or beam
Mu max -moment of resistance factor

7. Fck -characterstic compressive strength
Fy -characteristic strength of of steel
Ld -devlopment length
LL -live load
Lx -length of shorter side of slab
Ly - length of longer side of slab
B.M. -bending moment
Mu -factored bending moment
Md -design moment
MF -modification factor
Mx -mid span bending moment along short span
My - mid span bending moment along longer span
M’x -support bending moment along short span
M’y - support bending moment along longer span
Pt -percentage of steel
W -total design load
Wd -factored load
Tc max -maximum shear stress in concrete with shear
Tv -shear stress in concrete
Tv -nominal shear stress
ɸ -diameter of bar
Pu -factored axial load
Mu,lim -limiting moment of resistance of a section with out compression reinforcement
Mux,Muy -moment about X and Y axis due to design loads
Mux1,Muy1 -maximum uniaxial moment capacity for an axial load of pu,bending moment x and Y
axis respectively
Ac - area of concrete
Asc -area of longitudinal reinforcement for column