EARTHQUAKE RESISTANT

BUILDINGS ININDIA 1

report submitted by:ADARSH KUMAR

ANIL SHRAMA ASHISH SINGH

DEBLA MONDAL PAWAN YADAV

TASLEEM KHAN 2

Sources of Earthquake

• Tectonic plates• Volcanic eruption• Nuclear explosion

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Source: www.ecogeodb.com

Losses

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Techniques to resist Earthquake• Active & Passive system• Shear walls• Bracing• Dampers• Rollers• Isolation• Light weight material• Bands• Others 5

Active SystemActive control systems are devices integrated with real-time processing evaluators for improved service and safety.

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Passive SystemPassive control systems are conventional devices to resist or absorb the energy produced during Earthquake.For example: Viscous Dampers

Inertial Forces

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Shear WallsResist;• Gravity Loads• Lateral Loads

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Shear Wall

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March 3, 1985 Earthquake (Chile) Shear Wall performed very well

Bracing

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Link Beams

Diagonal Cross Chevron Eccentric

Bracing

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Bracing

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Cross Bracing

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Dampers

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Liquid Tuned Mass Damper

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One Rincon Hill, San Francisco

Rollers

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Isolation

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Isolation Bearing

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Base Isolation

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Base Isolation mechanism

Bands

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Waste Tire pads

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Source: www.homeimprovementpages.com

Waste Tire Pads

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Source: www.homeimprovementpages.com

Seismic Zone

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Haunches

In case of Joint failure,• Use High strength concrete • Increase section near joints • Provide haunches.

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Light weight material

In recent times, many new systems and devices using non-conventional civil engineering materials have been developed, either to reduce the earthquake forces acting on a structure or to absorb part of seismic energy. 26

Suggestions

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Source: www.eec.edu.pk

Suggestions

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Source: www.eec.edu.pk

Avoid Hammering & Pounding

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Suggestions• Avoid weak column and strong beam design• Provide thick slab which will help as a rigid diaphragm• Provide cross walls which will stiffen the structures• Provide shear walls in a symmetrical fashion•Increase in the transverse (Shear) reinforcement.• Horizontal lintel band should be provided• Revision/ updation of building code of Pakistan• The building must be regular and symmetrical in shape• Reinforcing bars should be provided at the corners and the junctions of the walls 30

Thank You!

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