Tuesday, July 24, 2012

How to prepare concrete staircase form work or shuttering work

The stair case which has 6 steps before landing, width of the stair case 850mm, step height 176mm, steps 200mm.  stair case step one start after floor height of 150mm

Drawing of sample stair case

leveling step one of form work

side view of staircase shuttering work

stair case bottom support of shuttering/form work

The most important thing to take note while preparing form work is that; 
1. The ply wood is secure and timber is enough to support concrete weight and vibration while pouring, so the last pic shows the bracing given to support the concrete. the pics were taken few hours before completing the whole form-work.
2. Making sure the first step is level, using a sprite level, so that it ensures the fact that next steps will be leveled. 
3. Take accurate measurements from the last end of the step one to the grid line, and top end of the step to the grid line, in this sample it measure 820mm at bottom and top against the grid line.
4. for easy construction of form work, use 2inch x 1.5inch straight timbers, and nail or screw them together. 

concrete poured to stair case form work and left for curing

setting up cantilever beam for landing


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