• INTRODUCTION
  • SOFTWARE’S
  • INFORMATION OF PROJECT
  • LOADS ON THE STRUCTURES
  • OBJECTIVES OF STRUCTURAL DESIGN
  • DESIGN AND ANALYSIS
  • REFERENCES

INTRODUCTION

Analysis is done through using the STAAD-PRO

CODE used in the project is  IS-456-2000

IS-456:200  : DESIGN CODE FOR RCC STRUCTURES

SP-16 : DESIGN CODE FOR COLUMNS

IS-875(PART 1) : CODE FOR DEAD LOADS

IS-875(PART 2) : CODE FOR IMPOSED LOADS

IS-875(PART 3) : CODE FOR WIND LOADS

INFORMATION OF PROJECT

1.Utility of building : Residential building

2.No of storeys : G+4

3.No.of staircases:5 no’s

4.Shape of the building: rectangular

5.Type of construction:  R.C.C framed structure

5.Type of walls :brick wall

Geometric details:

Ground floor               :3.0M

Floor height                :3.0M

Height of plinth          :1.5M from below foundation

Depth of foundation   :500MM

Material details:

Concrete Grade                      : M25

All steel grade                        : Fe500 grade

Type of steel bars                   : HYSD

Bearing capacity of Soil         : >180  KN/M2

DIFFERENT TYPES OF  LOADS  ON THE   STRUCTURES:-

Dead loads       Imposed loads         Wind loads

  • Dead loads:-RCC slab  Beams & column  sPlinth  Walls
  • Imposed load:-Imposed also known live loadsLoads over the floor i.e. Load of persons it is calculated as 1 KN/m2

    This load is applied over the length of structure

  • Wind load:-Wind is air in motionWind loads are calculated according to IS:875(part 3)

    Intensity of wind and exposure are applied in the direction as required

  • Load combinationThe structures should be analysed for combination of loads as in practice we have numbers of loads in various directions act

    Some of the combinations to be checked  are

    1.5(DL+LL)

    1.5(DL+WL)

    1.5(DL+LL+WL)

The main objective of the design are

  1. Foundation design
  2. Column design
  3. Beam  design
  4. Slab  design

DESIGN PRINCIPLE, ASSUMPTION AND NOTATION ASSUMED

  1. The notation adopted throughout the work is same as in IS 456-2000
  2. Using partial safety factors for loads in accordance with clause 36.4 of IS 456-2000
  3. Partial  safety factor for material in accordance with clause 36.4.2 IS456-2000 is taken as 1.5 for concrete and 1.15 for steel
  4. Using partial safety factors in accordance with clause 36.4 of  IS 456-2000  combination of load
  5. (D.L+L.L) 1.5

(D.L +L.L+W.L) 1.2

Density of materials used:-

MATERIAL                                  Density

1.Plain concrete                               24.0 kn /m3

2.Reinforced                                      25.0 k /m3

3.Flooring material(c.m)                 20.0kn/m3

4.Brick masonry                              19.0kn/m3

5.Fly ash                                            5.0kn/m3

LIVE LOADS: In accordance with IS 875-86

1.Live load on slab                  =3.0kn/m3

2.Live load on passage           =3.0kn/m3

3.Live load on stair                 =3.0kn/m3

Structural design

  • For slab, depth is 125 mm provided.
  • For beams, after calculations are done . the dimensions of beam is 230*530mm factored load on beam is 15.87kn/m
  • Shape of column is rectangular
  • For columns, the dimension of column is 300*600mm
  • Factored load on column 1090.10kn
  • For footings, the bearing  capacity of soil is 175kn/m2
  • To provide the dimensions of footing is 12.5m*2.7m

Assign the properties of structures1

ASSIGN   LOADS   ON  THE   SLAB

2

LOAD  ASSIGN  ON    THE    WALLS3

ASSIGN  WIND  LOAD ON  THE    STRUCTURES

(X+VE DIRECTION)4

ASSIGN  WIND  LOAD ON  THE    STRUCTURES

(X-VE DIRECTION)5

and similarly for the +z and -z direction

and the analysis is completed

Advertisements