This Standard gives simplified procedures for the thermal design of building foundations so as to avoid the occurence of frost heave. It applies to foundations on frost-susceptible ground, and includes buildings with both slab-on-ground floors and suspended floors. It covers heated and unheated buildings, but other situations requiring frost protection (for example roads, water pipes in the ground) are not included. The Standard is not applicable to cold stores and ice rinks.
Tämän julkaisun valmistelusta Suomessa vastaa Rakennustuoteteollisuus RTT ry, puh. 09 12 991 (vaihde).
Sisällysluettelo
Foreword
Foreword
Introduction
1 Scope
2 Normative references
3 Definitions, symbols and units
3.1 Terms and definitions
3.2 Symbols and units
4 Design principles
5 Material properties
5.1 Properties of the ground
5.2 Properties of building materials
6 Climatic data
6.1 Design freezing index
6.2 Frost depth in undisturbed ground
7 Foundation depth greater than frost depth in undisturbed ground
8 Slab-on-ground floors for heated buildings
8.1 Applicability
8.2 General principles
8.3 Restrictions
8.4 Ground insulation
8.5 Unheated parts of a building
8.6 Vertical edge insulation
8.7 Alternative foundation designs
8.8 Buildings with low internal temperature
9 Suspended floors for heated buildings
9.1 Heated underfloor space
9.2 Underfloor space ventilated with outside air
10 Unheated buildings
10.1 General
10.2 Without ground insulation
10.3 With ground insulation
10.4 Additional material that is non-susceptible to frost beneath insulation
10.5 Additional soil cover above insulation
Annex A Definition and calculation of freezing index (normative)
Annex B Numerical calculations (normative)
Annex C Design data for slab-on-ground floors based on 0 °C criterion (normative)
Annex D Frost susceptibility of the ground (informative)
ISO 10211-1:1995 Thermal bridges in building construction -- Heat flows and surface temperatures -- Part 1: General calculation methods
ISO 10456:1999 Building materials and products -- Procedures for determining declared and design thermal values
ISO 6946:1996 Building components and building elements -- Thermal resistance and thermal transmittance -- Calculation method
ISO 10211-1:1995 Thermal bridges in building construction -- Heat flows and surface temperatures -- Part 1: General calculation methods
ISO 10456:1999 Building materials and products -- Procedures for determining declared and design thermal values
ISO 6946:1996 Building components and building elements -- Thermal resistance and thermal transmittance -- Calculation method
ISO 7345:1987 Thermal insulation -- Physical quantities and definitions