Basics of Flat Plate Floor System
A flat plate is a couple-way system normally bolstered legitimately on columns or burden bearing dividers. It is one of the most widely recognized types of construction of floors in structures. Today, we will talk about the flat plate floor system.
The chief element of the flat plate floor is a uniform or close uniform thickness with a flat soffit which requires just straightforward formwork and is anything but difficult to build.
We use the flat plate system commonly in many types of construction. It’s a generalized construction methodology used in residential and commercial sectors.
The floor permits extraordinary adaptability for finding even administrations over a suspended ceiling or in a bulkhead. The economical span of a flat plate for low to medium burdens is normally restricted by the need to control long haul deflection and may be reasonably pre-cambered (not exaggerated) or prestressed.
An economical span for a strengthened flat plate is of the request for 6 to 8 m and for prestressed flat plates is in the scope of 8 to 12 m. The span 'L' of a fortified solid flat-plate is around D x 28 for basically bolstered, D x 30 for an end span of a constant system, to D x 32 for inward consistent spans.
The economical span of a flat plate can be stretched out by prestressing to roughly D x 30, D x 37 and D x 40 separately, where D is the profundity of slab.
Why should we prefer the Flat Plate System:
1. Straightforward formwork and appropriate for direct fix or showered ceiling
2. No beams—rearranging under-floor administrations
3. Least basic profundity and diminished floor-to floor stature.
Inconveniences of Flat Plate System
1. Medium spans
2. Restricted horizontal burden limit as a component of a minute casing
3. May require shear heads or shear support at the columns or bigger columns for shear
4. Long haul deflection might be controlling element
5. May not be appropriate for supporting weak (workmanship) allotments
6. May not be appropriate for substantial burdens.
The flat plate is a two-way reinforced concrete framing system utilizing a slab of uniform thickness, the simplest of structural shapes. It is widely used in most of the common building constructions.
To get more details, go through the following video tutorial.
Video Credit : Eng Ahmed ElFar