natural hazard resilience in iran
TRANSCRIPT
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A Perspective on Natural Hazard
Resilience in Iranian Cities
David Alexander University College London
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The rosebud and the soul Write mysteries on their margins, Fold by fold, Stay closed, And wait. Hafez Shirazi
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BENIGN (healthy) at the service of the people
MALIGN (corrupt) at the service of vested interests
interplay dialectic
Justification Development
[spiritual, cultural, political, economic]
IDEOLOGY CULTURE
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Aspects of preparedness
in Iran
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Earthquake preparedness information campaigns
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Seismic monitoring
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Civil protection and emergency
response
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Emergency planning
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Critical infrastructure protection
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The complexity and diversity of Iranian urban environments presents a challenge to disaster risk reduction
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• 8-16 million inhabitants
• three fault systems: mag. 6.9-7.1
• last major quake 1840: seismic gap?
• 50% building stock not antiseismic
• predicted 400,000 deaths.
Tehran
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Elements of vulnerability and resilience of historic buildings in
Iran
Contrasting Sinān with Bahā' al-dīn al-'Āmilī
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• domes and vaults: heavy and rigid
• arches: shallow and round-headed
• minarets: tall, slender and fragile
= rigidity, spreading stress distribution, high centre of mass.
Islamic architecture and dynamic hazards
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• widespread use of acute arch (stress distribution more contained)
• high quality of masonry and design
• use of flexible, energy- absorbing wooden spacers.
Mitigating factors in Iran
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An unknown quantity...
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Problems of Environmental Protection
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Where there's no sign of hope in the desert So much hope still lives inside despair Heart, don't kill that hope, Even willows bear sweet fruit In the garden of the soul. Maulana (Jalāl ad-Dīn Muhammad Rūmī) Kolliyat-e-Shams-e-Tabrizi
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Kheyli mamnoon va khoda hafez!
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