Weitere ähnliche Inhalte Mehr von Forest Products Society (20) Kürzlich hochgeladen (20) Sdrhcon2011 griffen2. Natural Disasters
Haiti Earthquake
• January 12, 2010
Hurricane Katrina
• August 28, 2005
Copyright © 2011 American Wood Council. All rights reserved.
3. Lateral Loads
Wind &
Seismic
Copyright © 2011 American Wood Council. All rights reserved.
4. Wind Basics
LIFT
WIND PRESSURE or SUCTION
Reactions
UPLIFT OVERTURNING SLIDING SHEAR
Copyright © 2011 American Wood Council. All rights reserved.
5. Lateral Loads - Wind
Copyright © 2011 American Wood Council. All rights reserved.
6. Lateral Loads - Seismic
Copyright © 2011 American Wood Council. All rights reserved.
7. Building Response Motions
Both wind & seismic
• planar sway (racking) center of stiffness
• torsional twist
racking twist
Copyright © 2011 American Wood Council. All rights reserved.
8. Building Response Motions
Both wind & seismic
• horizontal force transfer
– in-plane shear
Vmax at edges
Load
Copyright © 2011 American Wood Council. All rights reserved.
9. WFCM Standard
Basis for the Guides
•Consensus Standard
•Referenced in U.S. Building Codes
•Very technical
•Audience
•Designers
•Building Officials
Copyright © 2011 American Wood Council. All rights reserved.
10. High Wind Guides
Developed after Hurricane Katrina
•90-130 mph Exposure B
•Simplified approach
•Specific to wind zones
Copyright © 2011 American Wood Council. All rights reserved.
11. Caribbean Basin Builders’ Guide
Developed after Haiti Earthquake
•150 mph Exposure C
•Seismic Category D2
•Simplified approach
•Panelized construction
Copyright © 2011 American Wood Council. All rights reserved.
13. Caribbean Basin Guide
Limited Size
• 16’x24’
• Can be joined to form
larger structures
Copyright © 2011 American Wood Council. All rights reserved.
14. Caribbean Basin Guide
Foundations
• Needed especially in high
wind areas
• Slabs predominant
Copyright © 2011 American Wood Council. All rights reserved.
15. Caribbean Basin Guide
Modular walls
• Can be prefabricated and
shipped
Copyright © 2011 American Wood Council. All rights reserved.
18. Caribbean Basin Guide
Trilingual
•English
•Spanish
•French
• CWC assisted with French
translation
Copyright © 2011 American Wood Council. All rights reserved.
19. Availability of Caribbean Guide
www.awc.org
• Download
– no charge
• Hard copies
– Limited quantities
– Contact AWC
Copyright © 2011 American Wood Council. All rights reserved.