Suspended Concrete Floor Slab Section Detail

It consists of a floor slab usually 50 to 100mm thick supported by reinforced concrete ribs or joists.

Suspended concrete floor slab section detail. Riw td 801 typical ground bearing slab detail. 7 2 21 valleys and hidden gutters. Riw td 156 insulated concrete formwork masonry below ground retaining wall slab interface plus gas. Precast slabs are manufactured off site and craned into place either in finished form or with an additional thin pour of concrete over the top.

4 2 slab on grade construction details. Figures 4 12 through 4 14 show variations where the slab is the primary location for insulation. 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. 7 2 23 fascias and trim.

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. 5 1 17 ground floor slab and concrete. This chapter gives guidance on meeting the technical requirements for suspended ground floors including those constructed from. The suspended reinforced concrete slab is tied into the external capping beam at floor level.

Figures 4 9 through 4 11 and 4 15 show configurations with insulation on the exterior surface of the foundation. In this section several typical slab on grade sections are illustrated and described. The ribs are usually tapered and are uniformly spaced at distances that do not exceed 750mm. The main reinforcement should be of the order of diameter at 9 centres and the distribution steel 3 8 diameter at 12 centres.

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. To form this type of slab requires temporary beams columns and plywood as floor supports for the concrete. Detail 21 shows a suspended slab with no beam. Refer to aci 223 for procedures for the design and construction of shrinkage compensating concrete slabs on ground.

Suspended slabs are formed and poured in situ with either removable or lost non loadbearing formwork or permanent formwork which forms part of the reinforcement. The ribs are supported on girders that rest on columns. Riw td 153 typical detail at top of internal retaining wall with suspended floor. The design of suspended floors should conform to requirements of aci 318 and aci 421 1r.

5 1 18 laying the ground bearing floor slab. The design of slabs on ground should conform to the recommendations of aci 360r. The top steel reinforcement is important. Geo vent ground level vent box.