Suspended Concrete Floor Slab Section Detail

They are normally pre fabricated offsite and transported by truck.

Suspended concrete floor slab section detail. The slab is constructed on well compacted granular fill crushed stone or marl. The mesh reinforcement in the slab is placed in the top with 1 covers. Concrete slab floor construction was often used for internal garages or lower levels of split level houses with suspended floors used for other parts of the house. The suspended reinforced concrete slab is tied into the external capping beam at floor level.

They can normally span greater distances than timber joists. This chapter gives guidance on meeting the technical requirements for suspended ground floors including those constructed from. The ground floor is made up of suspended concrete slab or beam and block floor supported by the external and internal load bearing walls which transfer the loads to the foundations below. Ventilation is required in the same way as a suspended timber floor.

The design of suspended floors should conform to requirements of aci 318 and aci 421 1r. When renovating rooms with timber floors it is often possible to replace the timber with a concrete slab for added thermal mass and quietness underfoot. 7 2 23 fascias and trim. Detail 5 is an option where the garage floor is built as suspended concrete slab for parking while below is a living space or storage.

5 1 17 ground floor slab and concrete. 7 2 21 valleys and hidden gutters. To form this type of slab requires temporary beams columns and plywood as floor supports for the concrete. The design of slabs on ground should conform to the recommendations of aci 360r.

5 1 18 laying the ground bearing floor slab. Detail 21 shows a suspended slab with no beam. Added rooms can use slab on ground or suspended slabs. The top steel reinforcement is important.

In such application the suspended slab can be concrete slab on metal deck formed concrete slab or precast concrete deck. This slab design can only work for a slab clear span of 14 feet which is only good for one car garage 2 cars if parked behind the other not side by side. Alternative floor slab detail. Construction details excavation construction started with the removal of topsoil and excavation for footings.

Some slabs have hollow channels running through them these hollow core slabs are used to help reduce weight and also to allow cabling and piping to be run through the slab. Suspended floors are also used when the water table is high or when aggressive chemicals are present in the soil that may attack the concrete slab. This construction is similar to the timber floor above but uses either pre cast concrete planks or small pre cast concrete beams with concrete blocks laid between the beams. Suspended slabs are made of concrete and steel mesh the same as a ground slab.

Refer to aci 223 for procedures for the design and construction of shrinkage compensating concrete slabs on ground.