What is a flat slab?

A flat slab is a two-way reinforced concrete slab that usually does not have beams and girders, and the loads are transferred directly to the supporting concrete columns.

Can we use flat slab in residential building?

Yes, Dr. Baekeland. I was refering to beamless slabs with two-way load transfer. Flat slabs create large horizontal diaphragm action as compared to vertical diaphragm action which is far less owing to absence of beams.

Why which cases we select to construct the flat slab?

Flat slabs are preferred to the clients and architects due to economics advantage and it is speeding up the construction process. But there is a major weakness in flat slab from structural engineering point of view that they are vulnerable to punching shear failure at the junctions of columns and columns.

Where are one way slabs used?

Types of Designs for One-way Slab

• There are mainly three types of designs for one-way slab.
• In one-way solid slab (with beams) system, the slab is supported on beams.
• One-way Ribbed Slab (with beams)system is used for the office buildings (low rise), parking structures, and warehouses.

What is the difference between solid slab and flat slab?

The main difference between the two types is “drop beam”. A solid slab has drop beams whereas a flat slab has no drop beams, as a result the main problem with flat slabs is the “punching Shear” from the columns.

What are the conditions in which flat slab is preferred?

Flat slabs are mostly used in auditoriums, high rise buildings, parking garages, etc. for construction of asymmetrical column layouts like ramps, floors with curved shapes, etc, flat slabs are preferred.

What are the components of flat slab?

Major components of flat slab are capital/head, drop panel, columns strip and middle strips.

Where are two way slabs used?

In two way slabs, the load will be carried in both the directions. So, the main reinforcement is provided in both directions for two way slabs. Example: These types of slabs are used in constructing floors of a multi-storeyed building.

Where is one way slab and two way slab used?

Whereas two-way slabs are used in constructive floors of the Multistorey building. In one-way slab quantity of steel is less. In two-way slab quantity of steel is more as compared to the one-way slab. Main Reinforcement is in provide short span due to banding.

Is flat slab economical?

Weight of Flat slab structure is quite low as compared to conventional slab structure. Flat slab structure is more economical than that of conventional slab structure. The cost of flat slab structure is reduced by 15.8\% compared to conventional slab structures.

What is flat slab?

Flat slab is an RCC slab built monolithically with supporting columns and reinforced in two or more directions. Beams are not provided to support the slab. The loads are directly transferred to the columns. In flat slabs, the columns are provided with enlarged heads called capitals or column heads.

What is the difference between flat slab and reinforced concrete?

A reinforced concrete slab that generally does not use beams and transfers the load directly to the supporting column refers to the flat slab. A flat slab gives a plan ceiling surface providing better diffusion of light, simple constructability with the saving in the formwork, shorter story height or considerable headroom, and pleasant appearance.

Where are slabs used in construction?

These slabs are typically used on parking decks, commercial buildings, hotels, or places where beam projections are not desired. This slab is also called beam slab construction so beams are sometimes avoided in warehouses, offices, public halls, and slabs are supported directly by columns.

What is a flat slab ceiling?

A flat slab gives a plan ceiling surface providing better diffusion of light, simple constructability with the saving in the formwork, shorter story height or considerable headroom, and pleasant appearance. These slabs are directly held on a suitably spaced column with or without drop panel and column heads.