A normative appendix is an integralpart of a Standard, whereas an informative appendix is only for information andguidance.Ĭopyright STANDARDS AUSTRALIAUsers of Standards are reminded that copyright subsists in all Standards Australia publications and software. The terms normative and informative have been used in this Standard to define theapplication of the appendix to which they apply. All other details are purely illustrative. The Figures are intended to show only the structural proportions of the footingsystem. The Notes to the Figures in Section 3 form part of the mandatory provisions of thisStandard. (d) Tolerance of the superstructure to movement. (c) Distribution to the foundation of the applied loads.

(b) Settlement of compressible soils or fill. (a) Swelling and shrinkage movements of reactive clay soils due to moisture changes. The Standard takes account of the following: Although awide range of conditions is covered, this Standard places particular emphasis on thedesign for reactive clay sites susceptible to significant ground movement due to moisturechanges. The purpose of this Standard is to establish performance requirements and specificdesigns for footing systems for foundation conditions commonly found in Australia and toprovide guidance on the design of footing systems by engineering principles. This Standard was prepared by the Standards Australia Committee BD/25 on ResidentialSlabs and Footings to supersede AS 2870.11988 and AS 2870.21990. PUBLISHED BY STANDARDS AUSTRALIA(STANDARDS ASSOCIATION OF AUSTRALIA)1 THE CRESCENT, HOMEBUSH, NSW 2140

Residential slabs and footingsConstruction

Australian standard as2870 pdf download