Project 2_Design & Analysis of a Hostel building at Guwahati, Assam

Aim: Design and analysis of  a hostel building situated in Guawahti using E-tabs and SAFE.

DESIGN Codes used:

The following is design codes required for reference.

IS1875 -PART-1

IS1875-PART -2

IS13920.

IS1893.

IS29311 -PART-2

IS456

SP34. 

Required Data:

The wall will be made of AAC block. other loads are to be calculted as per architectural drawing.

The building rest on 3-types of soil.

piles of length 10metres and 500mm diameter with a load- carrying capacity of 280KN isto be used.

M25 Grade of concrete with Fe500 For longitudnal reinforcementand Fe 415 for shear reinfocement is to be used.

Procedure:

Open E-TABS and edit the grids and story data.

Then click ok.

Then customize story data.

Define the Materials.

Now defining Beams,Columns, & Slab.

Now Define Load patterns.

Define Mass source.

Now Assign columns,beams & slabs.

now columns.

Now Beams

now slabs

now select beam property

Now Run Analysis

Calculating time period as per clauses 7.6.2 as per IS1893.

Tx=0.009h/`squareroot`d

    =0.009x16.85/`square root`67.7

    =0.0185sec, Ty=0.415sec.

check the model 

so that the model participating the ratio should be greater than 90%.hene it is ok.

 Step :2 - SAFE Design.

Given Data :

Column size =450x600 mm

Pile load carrying capacity= 280KN.

Pile Length = 16mm,

Dia of Pile = 500mm.

Safe bearing capacity =150Kn/mm^2.

E=25000kn/mm^2

Area of pile=196375 mm^2.

spacing of pile = 1250mm as per clause 6.6.2 as per IS 29111

 

procedure:

Open SAFE  then load the  ETABS file of the project

choose only the base and above in etabs in the model.

For X- direction

Max. reinforcement at top = 9041 mm^2 = 28no. 20 mm dia

Max reinforcement at bottom = 4038 mm^2= 13 nos. 20 mm dia

For Y direction

or top max reinforcement = 3831 mm^2 = 12 nos. 20mm dia

Max reinforcement at bottom = 4398mm^2 = 14nos. 20 mm dia

Define materials

Define soli Bearing.

Define pile cap

Define load.

Draw the designated pile caps, columns.

Draw the deisgn strips

 start the analysis.

RESULTS:

WITH THIS I CONCLUDE THE PROJECT.