Project 1_Comparative study of different storey buildings for Seismic forces
AIM -
Factors influencing the dynamic characteristics of a building
Factors influencing the Natural Period of a building
Factors influencing the Mode shape of oscillations.
ANS -
THE FOLLOWING BUILDING TASK IS GIVEN AND ANNALYSING ABOUT THREE POINT.
1. Factors influencing the dynamic characteristics of a building
2. Factors influencing the Natural Period of a building
3. Factors influencing the Mode shape of oscillations.
I AM SHOWING THE CREATED TOTAL 10 MODEL WHICH I HAVE CREATED INTHE ETABS. ACCORDING TO GIVEN PROJECT 1 CRITERIA.
1. MODEL A -
in model 1 having 4 dtorey building. which have 4 byes in x - direction and 3 byes in y- direction. having a column 400x400 and beam 300x400.
PLAN VIEW -
3D VIEW -
Time Period After Modifiying The Building (A) :
Time Period - 0.5 second
it means structure is not having flexibility. because time period is .5 sec.
MODEL - B
PALN VIEW -
in model B having 5 dtorey building. which have 4 byes in x - direction and 3 byes in y- direction. having a column 400x400 and beam 300x400.
3D VIEW -
Time Period After Modifiying The Building (A) :
Time Period - 0.5 second
Structure is notmore flexible.
MODEL - C
PLAN VIEW -
IT BENCHMARK BUILDING WITH RECTANGULAER COLUMN ORIENTED ALONG Y-DIRECTION. in model B having 5 dtorey building. which have 4 byes in x - direction and 3 byes in y- direction. having a column 550X300 and beam 300x400.
3D VIEW -
Time Period After Modifiying The Building (C) :
Time Period - 1.12 second
MODEL - D
PLAN VIEW -
IT BENCHMARK BUILDING WITH RECTANGULAER COLUMN ORIENTED ALONG Y-DIRECTION. in model B having 5 dtorey building. which have 4 byes in x - direction and 3 byes in y- direction. having a column 550X300 and beam 300x550.
3D VIEW -
Time Period After Modifiying The Building (D) :
Time Period - 1.12 second
Natural time period is less time. it means structure is stiff.
MODEL - E
PLAN VIEW -
In this model 10 storey building with verying. in model E- having 10 dtorey building. which have 4 byes in x - direction and 3 byes in y- direction. having a column in upper 5-storey had 400x400 and bottom 5 storey had 600x600 and beam having a size 300x550.
PLAN VIEW BOTTOM TO TOP 5 STOREY
PLAN VIEW TOP 5 STOREY TO 10 STOREY
3D VIEW OF MODEL - E
Time Period After Modifiying The Building (E) :
Time Period - 1.73 second
Natural time period is less time. it means structure is stiff.
MODEL - F
PLAN VIEW -
In this model 10 storey building with verying. in model F- having 10 dtorey building. which have 4 byes in x - direction and 3 byes in y- direction. having a column 600x600 and beam having a size 300x 400.
3D VIEW -
Time Period After Modifiying The Building (F) :
Time Period - 1.735 second
Natural time period is less time. it means structure is stiff.
MODEL -G
PLAN VIEW -
In this model 25 storey building with verying. in model G- having 25 Storey building. which have 4 byes in x - direction and 3 byes in y- direction. having a column upper 5 storey 400x400 middle 10 storey 600x600 and bottom 10 storey 800x800 having a sizes. and beam having a size 300x400.
3d view -
Time Period After Modifiying The Building (G) :
Time Period - 4.435 second
Natural time period is Heigh time. it means structure is more flexible.
MODEL -H
PLAN VIEW -
In this model 25 storey building with verying. in model H- having 25 Storey building. which have 4 byes in x - direction and 3 byes in y- direction. having a column 800X800 and beam having a size 300x400.
3D VIEW -
Time Period After Modifiying The Building (H) :
Time Period - 4.17 second
Natural time period is Heigh time. it means structure is more flexible.
MODEL - J
PLAN VIEW -
In this model 25 storey building with verying. in model J- having 25 Storey building. which have 4 byes in x - direction and 3 byes in y- direction. having a column 800X800 and beam having a size 300x400. having 10% imposed mass larger then the building H
3D VIEW -
Time Period After Modifiying The Building (J) :
Time Period - 4.354 second
Natural time period is Heigh time. it means structure is more flexible.
MODEL - K
PLAN VIEW -
In this model 25 storey building with verying. in model J- having 25 Storey building. which have 4 byes in x - direction and 3 byes in y- direction. having a column 800X800 and beam having a size 300x400. having 20% imposed mass larger then the building H
5
3D VIEW -
Time Period After Modifiying The Building (K) :
Time Period - 4.426 second
Natural time period is Heigh time. it means structure is more flexible.
The Following annlysis is doing with copare with 10 building model which i have create Excel sheet.
1. Factors influencing the dynamic characteristics of a building.
2. Factors influencing the Natural Period of a building.
3. Factors influencing the Mode shape of oscillations.
