safe building practices forearthquake
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sfe buildingTRANSCRIPT
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Presented by
M.AISHWARYA,
953413103003
Civil-III
Safe Building Practices ForEarthquake
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Definition of Earthquake Causes of Earthquake
Effects of Earthquake
Safe building practices
Conclusion
AGENDA
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They are natural disasters of a generally unpredictable nature
It is the shaking of earth due to the movement of earth’s crust
A sudden ,rapid shaking of the earth caused by the breaking and shifting of rocks beneath the earth surface
Defnition of Earthquake
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Earthquakes are casually related to compression or tensional stresses.
Volcanic eruptions, rock fall landslides and explosions can also cause a earthquake
Causes of Earthquake
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• Ground motion
• Landslides
• Ground displacement
• Liquefaction
• Tsunamis
Effects of Earthquake
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SIZE OF BUILDING
“ Simpler the plan , Better the performance”
CONSTRUCTION MATERIALS
“ R.C.C Preferable than P.C.C ”
IMPROVING EARTHQUAKE RESISTANCE OF MINOR BUILDINGS
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Horizontal band is necessary
throughout the masonry
“LATUR” earthquake incident
Strong column weak beam concept
is used in quake resistant buildings
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“Avoid soft storey-continue walls in ground storey”
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BASE ISOLATION METHOD
ENERGY DISSIPATION DEVICE
(seismic dampers)
• KEEPING BUILDING UP-RIGHT
EARTHQUAKE RESISTING STRUCTURES TECHNIQUES
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Introduces flexibility to the structures
Building is rested on flexible pads (base isolators)
When earthquake strikes the building does not moves
It is suitable for hard soil only
BASE ISOLATION
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In India base isolation technique was first demonstrated after 1993 killari EQ
Two single storey building were built with rubber base isolators resting on hard ground
The four storey bhuj hospital building was built with base isolation technique after 2001 bhuj EQ
BASE ISOLATION IN INDIA
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ENERGY DISSIPATION DEVICE - ( SEISMIC DAMPERS)
These are used in place of structural elements such as diagonal braces
Acts like the hydraulic shock absorbers in cars
When seismic energy is transmitted through them , dampers absorb part of it , and thu s damp the motion of the building
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Recently discovered technique of japan
It has found to be survived even in extreme earthquake
When then the quakes strikes the system dissipates energy in the building cores and exteriors
The frames are free to rock up and down within fittings fixed at their bases
KEEPING BUILDING UP-RIGHT
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IS 1893 ( part I) ,2002,Indian Standard Criteria for Earthquake Resistant Design of Structures (5th Revision)
IS 4326 , 1993 , Indian Standard Code of Practice for Earthquake Resistant Design and Construction of Buildings (2nd Revision)
IS CODES
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While Earthquake Are Inevitable,Each Earthquake
Need Not covert Into A Disaster........As what Comes in Between
the Culture of Safety and Prevention
Let us Work Together to Build a Culture of Prevention!!!!!
CONCLUSION
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Presented by
P.Pricilal,
953413103034
Civil-III
Safe Building Practices ForEarthquake
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