sdrhcon2011 griffen
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LongLong--term Housing term Housing Solutions in DisasterSolutions in Disaster--prone Areasprone Areas
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Copyright © 2011 American Wood Council. All rights reserved.
Natural DisastersHaiti Earthquake• January 12, 2010
Hurricane Katrina• August 28, 2005
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Copyright © 2011 American Wood Council. All rights reserved.
Lateral Loads
Wind & Seismic
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Copyright © 2011 American Wood Council. All rights reserved.
Wind BasicsLIFT
PRESSURE or SUCTION
UPLIFT SLIDING SHEAR
WIND
Reactions
OVERTURNING
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Copyright © 2011 American Wood Council. All rights reserved.
Lateral Loads - Wind
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Copyright © 2011 American Wood Council. All rights reserved.
Lateral Loads - Seismic
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Copyright © 2011 American Wood Council. All rights reserved.
Building Response Motions
• planar sway (racking)• torsional twist
racking twist
center of stiffness
Both wind & seismic
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Copyright © 2011 American Wood Council. All rights reserved.
Building Response Motions
• horizontal force transfer – in-plane shear
Vmax at edges
Load
Both wind & seismic
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Copyright © 2011 American Wood Council. All rights reserved.
WFCM StandardBasis for the Guides•Consensus Standard•Referenced in U.S. Building Codes•Very technical•Audience
•Designers•Building Officials
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Copyright © 2011 American Wood Council. All rights reserved.
High Wind GuidesDeveloped after Hurricane Katrina•90-130 mph Exposure B•Simplified approach•Specific to wind zones
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Copyright © 2011 American Wood Council. All rights reserved.
Caribbean Basin Builders’ GuideDeveloped after Haiti Earthquake•150 mph Exposure C•Seismic Category D2•Simplified approach•Panelized construction
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Copyright © 2011 American Wood Council. All rights reserved.
Caribbean Basin Guide
Simple structures
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Copyright © 2011 American Wood Council. All rights reserved.
Caribbean Basin Guide
Limited Size• 16’x24’• Can be joined to form
larger structures
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Copyright © 2011 American Wood Council. All rights reserved.
Caribbean Basin Guide
Foundations• Needed especially in high
wind areas• Slabs predominant
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Copyright © 2011 American Wood Council. All rights reserved.
Caribbean Basin Guide
Modular walls• Can be prefabricated and
shipped
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Copyright © 2011 American Wood Council. All rights reserved.
Caribbean Basin Guide
Modular walls
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Copyright © 2011 American Wood Council. All rights reserved.
Caribbean Basin Guide
Roof Systems
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Copyright © 2011 American Wood Council. All rights reserved.
Caribbean Basin GuideTrilingual•English•Spanish•French• CWC assisted with French translation
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Copyright © 2011 American Wood Council. All rights reserved.
Availability of Caribbean Guidewww.awc.org• Download
– no charge• Hard copies
– Limited quantities– Contact AWC
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Copyright © 2011 American Wood Council. All rights reserved.
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