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8/8/2019 Building Construction Pre Cast
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Prestressed ConcreteConstruction:PrecastClass Instructor :
RINO D.A. FERNANDEZ
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PRECAST CONCRETE:
Prestressed Concrete
- concrete reinforced by pretensioning or
posttensioning high-strength steeltendons within their elastic limit to
actively resist a service load
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PRECAST CONCRETE:
Types of Prestressed concrete:
Pretensioned or precast concrete
Post-tensioned concrete
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PRECAST CONCRETE:
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PRECAST CONCRETE:
Precast Concrete
A concrete which has been prepared forcasting, cast and cured in a location which isnot its final destination
A concrete member/product that is cast andcured in a place other than where it is to be
installed in a structure
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PRECAST CONCRETE:
Cast in situ means cast in the actual position to
be occupied in the completed structure.
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PRECAST CONCRETE:
PRECAST CONCRETE STRUCTURES
An assemblage of precast elements which, whensuitably connected together, form a 3D
framework capable of resisting gravitation andwind loads
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PRECAST CONCRETE:
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PRECAST CONCRETE:
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PRECAST CONCRETE:
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PRECAST CONCRETE:
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PRECAST CONCRETE:
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PRECAST CONCRETE:
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PRECAST CONCRETE:
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PRECAST CONCRETE:
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PRECAST CONCRETE:
WHY CHOOSE A PRECAST STRUCTURE
Cost effective
Fast to erect
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PRECAST CONCRETE:
MATERIALS USED IN PRECAST STRUCTURES
Concrete
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PRECAST CONCRETE:
MATERIALS USED IN PRECAST STRUCTURES
Steel
Main Flexural - 16, 20, 25, 32, 40mm
Column Stirrups - 8 &10mm
Beam Stirrups - 10 & 12mm
Walls & Slabs - welded fabric
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PRECAST CONCRETE:
welded fabric
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PRECAST CONCRETE:
MATERIALS USED IN PRECAST STRUCTURES
Structural Steel
Rectangular Hollow SectionsSquare Hollow Sections
Solid Billets
ChannelsAngles
Plates, etc.
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PRECAST CONCRETE:
MATERIALS USED IN PRECAST STRUCTURES
Non-cementitious Materials
Neoprene/Rubber - bearing pads
Polysulphide Sealants - expansion joints
Epoxy Resins Mortars - shear & tension joints
Polystyrene - filler
PTFE (Teflon) - frictionless bearings
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PRECAST CONCRETE:
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PRECAST CONCRETE:
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PRECAST CONCRETE
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PRECAST CONCRETE:
PRECAST CONCRETE
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PRECAST CONCRETE:
PRECAST CONCRETE
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Conventional Precast Panel Support Detail
PRECAST CONCRETE:
PRECAST CONCRETE
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Direct-bearing Connection
PRECAST CONCRETE:
PRECAST CONCRETE
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Direct-bearing Connection
PRECAST CONCRETE:
PRECAST CONCRETE
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Eccentric Bearing Connection
PRECAST CONCRETE:
PRECAST CONCRETE
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Bolted Connection Welded Connection
PRECAST CONCRETE:
PRECAST CONCRETE
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PRECAST CONCRETE:
PRECAST CONCRETE
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PRECAST CONCRETE:
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PRECAST CONCRETE:
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PRECAST CONCRETE:
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PRECAST CONCRETE:
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PRECAST CONCRETE:
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PRECAST CONCRETE:
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PRECAST CONCRETE: