Precast erection procedure having the set of sequences. When the panel is installed on the slab, props are fixed to stable the panel, then panel was unhooked from crane then the temporary stich plate or stich angles are connected to the next panel through cast in ferrule, which is casted on the precast panel.
The temporary connection is additional support for the precast panel for until grouting the grout tube & slab were connected to the particular panel. The panels are easily leveled up with respect to the connected panel. Minimize the no of brace connections. Easy to maintain the panel gap.
Based on the position of panels & face of the connection it is classified as below,
- In-line stich plate connection.
- Internal Stich angle connection.
- External stich angle connection.
- On edge stich angle connection.
1. In-line stich plate:
When the panel are next to each other the temporary connections are made by the straight stich plate with ferrule as mentioned below picture.
2.Internal Stich angle:
When the panel is perpendicular each other and inside corner is access to perform the connection, the internal angle stich angle is being used.
3. External stich angle:
When the panel is perpendicular each other and outside corner alone is access to perform the connection, the external angle stich angle is being used.
4.On edge stich angle connection.
Some cases, same level panels one is erected on top of slab and another one is located on ceiling level is supported by on-edge ferrule mentioned as below picture.
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