Thursday, December 16, 2010

Precast concrete open riser stair

  • RC loadbearing wall
  • Balustrade omitted for clarity
  • In-situ floor slab 
  • Rc column 
  • Precast concrete spine beam 
  • In-situ RC landing 
  • Housing for spine beam 
  • Floor finish 
  • In-situ Rc landing 
  • Cantilever concrete or timber tread with 25mm overlap of tread below . 
  • Foot of spine beam housed in pocket cast in floor 

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