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Earthquake resistant prefabricated houses
Earthquake resistant prefabricated houses
Earthquake resistant prefabricated houses
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Earthquake resistant prefabricated houses

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  • 1. Earthquake  Resistant  Prefabricated  Houses  
  • 2. Prefab  homes  can  be  found  in  earthquake  and  seismic  zones  from  California  to   Alaska,  Hawaii,  the  Caribbean  and  Japan.  Each  house  design  is  individually   engineered  to  meet  local  seismic  code  requirements  and  to  adapt  to  the  natural   terrain  uBlizing  one  among  the  many  foundaBon  opBons  available.     The  biggest  misconcepBon  is  that  prefab  homes  are  flimsy  and  fall  apart  easy.  This  is   due  to  the  videos  we  see  on  television  about  old  mobile  home  parks  in  hurricanes.   The  fact  of  the  maEer  is  that  the  new  prefab  homes  are  built  as  strong  as  or  stronger   than  convenBonal  homes.     Earthquake  Hazard  Levels  are  based  on  the  seismic  risk  and  the  damage  anBcipated   from  major  seismic  events.  While  seismic  acBvity  is  much  more  common  in   California,  Hawaii,  the  Pacific  Northwest  and  Alaska,  damage  from  major  earthquakes   in  other  areas  could  be  significant  since  few  structures  elsewhere  are  built  to  be   earthquake  and  seismic  resistant.  
  • 3. A  unique  approach  of  integraBng  Post  and  Beam  construcBon  technology  with  almost  any   foundaBon  type  makes  prefab  homes  adaptable  to  nearly  any  terrain,  climate  or  design   need.  FoundaBon  types  include  sBlts  &  pilings,  basements,  crawl-­‐spaces,  and  on-­‐grade   slabs,  as  well  as  a  unique  pedestal  foundaBon  design.     Depending  upon  the  specific  locaBon  and  the  condiBon  of  the  soil,  various  approaches  are   employed  to  stabilize  the  home  foundaBons.  Slab  foundaBon  homes  oQen  only  require   large  steel-­‐reinforced  floaBng  slabs,  but  in  some  circumstances  where  soil  condiBons  are   poor,  steel-­‐reinforced  grade  beams  may  also  be  required.  In  other  seSngs,  foundaBons   may  actually  have  to  be  pinned  to  stable  rock  formaBons  below.  And  in  the  most  extreme   seismic  areas,  anchoring  foundaBons  deep  in  the  ground  to  stabilizing  pilings  may  be   necessary.  No  maEer  what  the  requirement,  working  closely  with  structural  engineers  and   local  building  officials  to  create  the  appropriate  and  safe  foundaBon  design,  is  the  best   approach.  

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