5.2.5 Transfer of loads: concrete floors
Suspended ground floors shall be designed and constructed to transmit all loads safely to the supporting structure without undue movement. Issues to be taken into account include:
- dead and imposed loads
- end bearings.
Dead and imposed loads#
In-situ:
Loads should be calculated in accordance with BS EN 1991-1-1.
Suspended in-situ concrete ground floors should be designed either:
- by an engineer in accordance with Technical Requirement R5, or
- in accordance with BS 8103-1.
Precast:
Loads should be calculated in accordance with BS EN 1991-1-1.
Precast concrete suspended ground floors should be:
- designed by an engineer in accordance with Technical Requirement R5
- proprietary systems which have been assessed in accordance with Technical Requirement R3, or
- chosen from the manufacturer’s details which are based on recognised standards and codes of practice.
End bearings#
In-situ:
Bearings on supporting walls should be designed either:
- by an engineer in accordance with Technical Requirement R5, or
- in accordance with BS 8103-1.
Precast:
Bearings on supporting walls should be as recommended by the manufacturer, and in no case less than 90mm.
Last updated: 2nd January 2024