Construction Industries had advanced several techniques in construction, specially civil engineers innovate several methods to reduce quant...
Construction Industries had advanced several techniques in construction, specially civil engineers innovate several methods to reduce quantity but increase strength. Among several techniques Prestress concrete sections are common now a days. In prestress reinforced concrete sections we impose stress to the tendons that during loading they can back to low stress condition. To achieve this main target there are mainly two methods of construction.
Pretension: Where stretched tendons used in casting.Post tension: Where tendons stretched after casting.
Here we are showing you video of Post tension method with explanation of steps. VIDEO IS IN LAST OF THIS POST
- Form work Set up
- Placing of bottom reinforcement.
- Fixing of bar chair
- Placing post tension tendon
- Fixing anchorage, bursting reinforcement.
- Placing of bottom reinforcement.
- Placing anchorage pocket former and grout vent.
- Fixing slab edge formwork with pocket former.
- Concreting of slab.
- Remove slab edge formwork.
- Remove pocket former.
- Placing anchor head and wedge in position.
- Stressing
- Cutting end of strand.
- Capping stressing recess with cement mortar.
- Grouting.
Watch video here