The document discusses the demolition of a building. It describes the steps that must be taken before demolition, including surveying the structure, removing hazardous materials, preparing a demolition plan, and creating a stability report. It outlines safety measures that must be followed. It then explains the two main methods of demolition - non-explosive demolition using equipment like sledgehammers, and explosive demolition which uses explosives to strategically remove structural supports to bring the building down in a controlled manner. The conclusion states that the demolition method depends on factors like the site, structure, building age and height, and cost effectiveness, and that explosive demolition is effective for larger structures.

1. Topic :-Demolition of a Building
Submitted by
Abhishek kadve
Civil engineering

2. content
 Introduction
 Demolition
 Steps before demolition
 Surveying
 Removal of Hazardous Materials
 Preparation of Plan
 Stability report
 Safety measures
 Methods of Demolition
 Non-explosive demolition
 Explosive demolition
 Conclusion

3. Introduction
 We know every structure is
designed for a life period.
 The existence of the structure
after the service life period is
very dangerous to its occupants
and surrounding buildings.For
the protection of public safety
and to ensure adjoining
premises and the site are made
good on complection.

4. Demolition  Demolition is the process of
tearing down or falling dowm of a
building after its life period with
the help of some equipments or
any other method.
 When explosives are used for this
then the demolition process are
called as an implosion.

5. Steps before demolition
Surveying
Removal of dangerous material
Preparation of Plan

6. Surveying Study of different
parameters of the structure
and its surroundings.
Record Drawing
The construction materials
Adjoining properties and
site condition

7. Removal of dangerous material
 Asbestos containing material
 Soil contamination material

8. Preparation of plan
The location of the building to be demolished .
A layout plan of all floors of the building to be
demolished.
The structure support systems.
Time and frequency.
A temporary parking layout for mobile machines and
trucks.

9. Stability report
The stability report shall included the following parts
 A report on the stability of the building to be
demolished during all stages of demolition.
 A report on the stability of neighbouring
buildings,adjoining properties.

10. Certificate of demolition

11. Safety measures
Training and communication.
Equipments Maintenance.
Electrical Safety.
Fire
Occupational Health.
Emergency Exit Requirements in Demolition sites.
Vibration
Enviromental Precautions.

12. Methods of Demolition
There are two types of Demolition
 Non explosive Demolition
 Explosive Demolition

13. Non explosive demolition
 It means the demolition
of a structure done with
some equipments
without the use of
Explosive.
SLEDGE HAMMER

14. EXPLOSIVE DEMOLITION
The basic idea of explosive
demolition is quite simple.
If we remove the support
structure of a building at a
certain point, the section of
the building above the
point will fall down the part
of the building below that
point.

15. CONCLUSION
Types of demolition method depend upon various
factor such as site condition,types of structure,age of
building,height of building and economy.
Anyway controlled demolition of building is necessary
to ensure safety.
Explosive demolition is the perfact method for safely
and efficiently demolishing the larger structures.

16. Referencehttps://www.google.co.in
https://www.slideshare.net
https://www.wikipedia.org
https://images.google.com
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