Project 1_Comparative study of different storey buildings for Seismic forces

Project1 : Comparative study of diffrent storey building for seismic forces

AIM: Comparative study of diffrent storey building for seismic forces

INTRODUCTION:

• Factors influencing the Natural Period if a building

• Effect of stiffness onn T.Compare fundamental natural periods of building E and F as well as G and H.WHy is ther a marginal significant diffrence in the fundamental natural periods
• Effect of mass on T : Compare findamental natural periods of buildings H ,J and K Have the bbuilding became more flexible or stiff due to change in mass
• Effect of building height on T. How does the fundamental natural periods of buildings A ,B,F and H change in building height
• Effect of column orientation on T : How does the fundamental natural periods of buildings B ,C AND D change in column orientation

• Building A

1. 2 Storey Building
2. X direction - 4 and Ydirection -3
3. Size of beam 400 X 400mm

• Open ETABS software and go for new model set the model

• First edit custom grid spacing set no of bay and spacing two grids and press ok

• Now storey data

• Our building frame created

• Now go to define --->materials of concrete and rebar

• Now go to slab section add 150 mm thick membrane slab with grade concrete

• Go to load pattern define the load

• Now define mass source

• Now go to load cases

• Create load combination

• Now go for column modelling and click draw column option change working plane as all stories

• Beam modelling

• quick draw slab

• Now assign loads Wall load = 10 Kn/M

Live load= 3Kn/m

• Now assign diaphragms

• Now Check design and rin analysis