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

AIM: To design and analysis of G+3 hostel building in etabs and foundation in safe

Introduction:

In this project, participants will get to experience the entire design process from modelling, analysis, design, and preparation of construction drawings. The architectural drawings of a G+3 RCC building is provided. The following information on the building is to be used:

Location – Guwahati, Assam
Function – Hostel block in an academic instituteThe walls will be made of AAC blocks. Other loadings are to be calculated as per the architectural drawings.

The buildings rests on type 3 soil. Piles of length 10 meters and 500 mm diameter with a load-carrying capacity of 280 KN is to be used.

The ground floor level will be at a height of 2 meters above the existing site level to avoid floodwater enter the building.

M25 grade of concrete with Fe500 for longitudinal reinforcement and Fe 415 for shear reinforcement is to be used.

The following design IS codes will be required for reference:

IS 875 part 1
IS 875 part 2
IS 13920
IS 1893
IS 2911 part 2
IS 456
SP 34
Students will have to produce the following:

Etabs model for the two blocks on either side of the expansion gap
Foundation details illustrating the pile & pile cap reinforcement
Tie beam details connecting the pile caps
Column reinforcement
Framing plan for typical floor
Beam reinforcements for ground floor

Procedure:

first create etabs model

step 1: open the etabs software

click on built up option from initialization window

then put all correct code

like that

step 2) grid setting

set grid of X direction and Y direction accordingly plan as shown below

now add stories data

like that

now our frame plan is ready on etabs screen

step 3) now define material property

go to define tab and select material option

click on add new material option

and add M25 grade concrete

and also, rebar of fe415 and fe500 fck

our all material are shown below

step 4) section property

go to define

and click on frame section

then click on add new property

select rectangular section

and press ok

SAFE model (foundation Design)

step 1) after exporting etabs model to safe then open the safe and import file

step 2)

now show load from display option

dead above load

Step 3)

given in question

soil type = 3

piles of length = 10m

pile dia = 500mm

load carrying capacity = 280KN

pile cap = slab type = mat = 500mm thick

column cap slab = stiff 500mm thick

so firstly, define the slab property

Step 4)

define slab property

step 5)

RC beam section of tie connection of foundation is 600X500mm is assigned

step 6)

for piles the point springs are assigned

step 7)

for bearing pressure checking the service load combination is considered

for flexural design the ultimate load combination is considered

Step 8) Define the soil

step 9) Draw the points for the reference of the pile

Step 10)

draw piles And assign the point springs

step 11)

Draw columns below the loads

step 12)

Run model Display the deflection

Step 13) Reactions

Step 14) Punching shear

Step 15)

Design reinforcement
Since load was heavy the model divided to 3 pasts and analysis was done