The document discusses building demolition techniques, emphasizing that demolition involves careful planning and safety measures, particularly the removal of hazardous materials. It details two main demolition methods: non-explosive, which includes tools like sledgehammers and excavators, and explosive, which employs controlled implosion of structures. The importance of analyzing the building's weak spots is also highlighted to ensure a successful demolition without accidents.

1. BUILDING DEMOLITION TECHNIQUES AND METHODS

2. DEMOLITION
 DEMOLITION is the process of breaking down or
removal
 It is process of dismantling or destroying the
structure
 the building is demolished if the building is not
capable to living and not safe to neighboring
buildings
 Demolition is not a simple process it have some
important steps before demolish

3. STEPS BEFORE BUILDING
DEMOLITION
 SURVEYING
 REMOVAL OF HAZARDOUS MATERIALS
 PREPARATION OF PLAN
 SAFETY MEASURES

4. SURVEYING
This process is to analyze the structure and
surrounding of building.

5. REMOVAL OF HAZARDOUS
MATERIALS
Removal of hazardous materials like
petroleum,radioactive elements. This process is
executed for the safety plan to avoid any fire accidents

6. PREPARATION OF
DEMOLITION PLAN FOR
STRUCTURE
This process is executed for
analyze weak spots of the
building structure like its pillars
and columns

7. SAFETY MEASURES
The good that are flammable
are removes from the site like
wood, timber, fuels and stored
it in a proper storage facilities

8. DEMOLITION METHODS OF BUILDINGS
 Demolition method are of two types
• Non-explosive demolition
• Explosive demolition

9. NON-EXPLOSIVE DEMOLITION
 SLEDGE HAMMER
SLEDGE HAMMERS USED
TO DEMOLISH SINGLE
WALLS OR SINGLE
COLUMN

10. Excavators and bulldozers
Excavators and bull
dozers are used to
demolish the small
house and small
buildings and its is used
to removal of
demolished bricks and
objects to truck

11. Wreckingball
It was a large steel ball pulled and
released towards a building.
This method is not recommended.
Once the steel ball strikes the
structure it cannot be controlled

12. HIGHREACH EXCAVATORS
These high reach exacavator
are used to demolish building
have 300ft
It have shear attachments and
hydraulic hammers

13. IMPLOSION
Implosion is the process of
demolition of a building using
explosives. If the supports of
the building are removed the
structure collapses
The columns, beams , slab are
fixed with explosives and
detonated.

14. FAILURE OF
DEMOLISTION
If you demolish a
building without
proper anlalyzing
process THIS IS THE RESULT.

15. ANALYZING
If you properly
analyze and find out
the weak spot of
structure you can
success
Fully demolish a
building without any
corruption.so
analyzation is very
important.

16. PRESENTATION BY:
MAHMOOD ANAS M.S