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Categories of Precast Components in a Building

 

Given below, the detailed lists of various types of precast components found in a building developed with precast structure.

 

 

Precast Beams: Precast beams are classified as follow :-

 

. Internal beams - Here floor loading is almost equal
. External beams - Here floor loading is largely irregular.

 

Precast Columns:

 

. In case of five storied or less structures, each column will generally be constant to the complete height of the building.
. In case of structures having in excess of five story's two or more columns are merged jointly.

 

The core types of precast columns range from:

 

. Edge columns - proportionate in one direction.
. Internal columns - proportionate in all directions.
. Corner columns - disproportionate at all.

Precast floor slabs: The following major types of slabs are applied in the precast frames:

 

. Hollow cored slab
. Double tee slab

 

Precast walls: Precast concrete walls offer the following functionalities:

 

. Constancy
. As walls or boxes adjacent to staircases and lift shafts.

Walls are categorized as infill or cantilever:

 

. Infill walls are based on coherent combined action with the beam and column frame.
. Cantilever walls or boxes operate as deep beams to which the frame is affixed.

 

Categories of precast components in a building
Ref.: theconstructor.org

 

Precast staircases: There are three options for precast staircases:

 

. A single precast unit having all the flights and landings
. Individual precast flights and landings
. Parts of the flights and landings are formed with one piece.

 

 

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