Project 1_Comparative study of different storey buildings for Seismic forces

AIM: To Prepare the the etabs model for given ones and extract the factors influencing the dynamic characterstics ,Natural period and mode shape of oscillation.

Introduction:Etabs are used for structural design and analysis of high rise building ,mostly for sesmic design.

Procedure:

1A:2Storey building with column 400mmx400mm & beam 300mmx400mm

• Design the 2storey building with column size 400x400mm and beam of 300x400mm.
• Then apply the dead loads as per given.
• Modal direction factor for 0.606sec.
• Modal period and frequience for 0.608sec.

1B:5Storey building with column 400mmx400mm & beam 300mmx400mm

• Design the 5storey building with column size 400x400mm and beam of 300x400mm.
• Then apply the dead loads as per given.
• Modal period and frequience for 1.286sec.

1C:5Storey building with column 550mmx300mm & beam 300mmx400mm

• Design the 5storey building with column size 550x300mm and beam of 300x400mm.
• Then apply the dead loads as per given.
• Change the column oreintation for x-axis.
• Modal period and frequience for 1.3266sec.

1D:5Storey building with column 300mmx550mm & beam 300mmx400mm

• Design the 5storey building with column size 300x550mm and beam of 300x400mm.
• Then apply the dead loads as per given.
• Change the column oreintation for y-axis.
• Modal period and frequience for 1.359sec.

1E:10Storey building with varying column up to 5 storey 600mmx600mm &5 to 10 storey 400mmx400mm beam 300mmx400mm

• Design the 10storey building with column size 600x600mm up to 5 storey and 6 to 10 storey 400mm to 400mm and beam of 300x400mm.
• Then apply the dead loads as per given.
• Modal period and frequience for 2.21sec.

1F:10Storey building with column 600mmx600mm & beam 300mmx400mm

• Design the 10storey building with column size 600x600mm and beam of 300x400mm.
• Then apply the dead loads as per given.
• Modal period and frequience for 2.223sec.

1G:25Storey building with varying column up to 10 storey 800mmx800mm;11 to 20 storey 600mmx600mm&21 to 25 storey column 400x400mm; beam 300mmx400mm

• Design the 10storey building with column size 800x800mm 11 to 20 storey 600mmx600mm &21 to 25 storey column 400x400mm and beam of 300x400mm.
• Then apply the dead loads as per given.
• Modal period and frequience for 4.742sec.

1H: 25Storey building with column 800mmx800mm & beam 300mmx400mm

• Design the 25 storey building with column size 800x800mm and beam of 300x400mm.
• Then apply the dead loads as per given.
• Modal period and frequience for 5.05sec.

1J:25Storey building with Imposed load of 10% higher than H ;column 800mmx800mm & beam 300mmx400mm

• Design the 25 storey building with imposed load 10% higher than column size 800x800mm and beam of 300x400mm.
• Then apply the dead loads with increased 10% live load as per given.
• Modal period and frequience for 5.552sec.

1K:25Storey building with Imposed load of 20% higher than H ;column 800mmx800mm & beam 300mmx400mm

• Design the 25 storey building with imposed load 20% higher than column size 800x800mm and beam of 300x400mm.
• Then apply the dead loads with increased 20% live load as per given.
• Modal period and frequience for 5.595sec.

Result:

To complete the the etabs model for given ones and extract the factors influencing the dynamic characterstics ,Natural period and mode shape of oscillation.