Do you reside in the earthquake-prone region? If yes, then you must consider applying the seismic retrofitting techniques in your building in order to be safe. These modifications of existing structures make them more resistant to the seismic activities. There are different retrofitting techniques such as adding a new shear wall, steel bracing and jacketing depending on the condition of the building. In order to have a brief idea of the seismic retrofitting techniques, see the following slide show.

1. A Brief Idea on
Seismic
Retrofitting
Techniques

2. Old building constructions are prone to
vulnerable damages by the seismic forces
that are happening throughout the year.

3. Some earthquake effects are small, some
are moderate, and some are severe that
occur around the world frequently.

4. It's quite impossible to predict when the
earthquake will happen and what will be
its effects.

5. So a proper seismic retrofitting can
withstand earthquake of any size & will
save you from the disasters.

6. Buildings that are built before the nineties
need to be checked and retrofitted as these
buildings were not built with stringent
standards as that of now.

7. Seismic or earthquake retrofitting
involves upgrading all of the components
of the home to make it as safe and as
modern as possible.

8. It's the modification of existing structures
to strengthen and make them more
resistant to
Seismic Activity
Ground Motion Soil Failure

9. The retrofitting of the building also saves us from
Cyclones
Thunderstorms
Tornadoes
Severe Winds

10. Roof to wall connections, roof
diaphragm, shear walls, and continuity
ties are checked and strengthened
accordingly if any weak part is found.

11. Seismic retrofitting is needed in both the
earthquake damaged buildings and
earthquake-vulnerable buildings.

12. Important buildings such as hospitals,
Commercial buildings, historical
monuments, architectural buildings
should be retrofitted at the earliest.

13. Retrofitting is basically performed to
 Upgrade Building Structure's Lateral
Strength
 Increasing the Structure's Strength &
Ductility

14. Methods of building retrofitting vary
according to the
 Type of Structures
 Material Condition
 Amount of Damage

15. Some of the Seismic Retrofitting Techniques are
 Adding New Shear Walls
 Adding Steel Bracing
 Jacketing

16. Adding New Shear Walls

17. It's used normally for retrofitting non
ductile reinforced concrete frame
buildings to control drift.

18. Here the new elements are placed at the
exterior of the building rather than the
interior part to avoid interior mouldings.

19. Addition of Steel Braces

20. Steel braces are added in the structure to
provide strength, ductility, and stiffness to it.

21. The important thing in this technique is to
make connection between the braces and
the existing frame.

22. This technique is used when large openings
are required.

23. Addition of Infill Walls

24. Buildings with ground storeys are normally
retrofitted with the addition of masonry
infill wall.

25. Addition of infill walls boosts the strength
and stiffness of the building.

26. But in this case, the ductility of the building
is not increased.

27. Mass Reduction

28. The lateral force demand decreases when
there is reduction of mass results. So this
technique is used to strengthen the
structures.

29. Base Isolation

30. Base isolation of the building is a seismic
retrofitting technique to control the passive
structural vibration.

31. Jacketing

32. Jacketing is meant for strengthening the
building coloumns.

33. The benefits of jacketing is to increase the
shear strength, flexural strength, and the
concrete confinement.

34. The important types of jacketing are
concrete jacketing, steel jacketing, and fiber
reinforced polymer composite jacketing.

35. For detailed analysis of your home
condition and appropriate seismic
retrofitting according to that condition is
vital and only an expert in this sector can do
it effectively.

36. http://www.troybuilders.com/
https://www.facebook.com/pages/Troy-
Builders/
515246492139991