NF EN 12573-3 : 2000
Current
The latest, up-to-date edition.
WELDED STATIC NON-PRESSURISED THERMOPLASTIC TANKS - PART 3: DESIGN AND CALCULATION FOR SINGLE SKIN RECTANGULAR TANKS
12-01-2013
Foreword
1 Scope
2 Normative references
3 Definitions, symbols and abbreviations
3.1 Definitions
3.2 Symbols and abbreviations
4 General considerations in design calculations
5 Unstiffened tanks sitting on a continuous flat
rigid surface
5.1 General
5.2 Aspect ratio x/y < 0,5
5.3 Aspect ratio 0,5 < x/y < 4
5.4 Aspect ratio x/y > 4
6 Tanks with rim stiffening supported on a continuous
flat rigid surface
6.1 Calculation of the skin thickness
6.2 Calculation of rim stiffeners
7 Tanks with intermediate horizontal stiffeners
supported on a continuous flat rigid surface
7.1 General
7.2 Calculation of the minimum skin thickness
7.3 Calculation of the horizontal stiffeners
8 Tanks with cross-ribbed horizontal and vertical
stiffeners supported on a continuous rigid surface
8.1 Calculation of the minimum skin thickness,
base thickness and properties of horizontal
stiffeners
8.2 Calculation of the properties of vertical
stiffeners
9 Rectangular tanks with U-frame
9.1 General
9.2 Calculation of the skin thickness of the side
walls
9.3 Determination of the tank base
9.4 Calculation of the U-frame stiffening
10 Determination of the tank cover
10.1 General
10.2 Freely supported tank cover
10.3 Fixed tank cover
10.4 Stiffened tank cover
Annex A (informative) Construction details for rectangular
tanks
Annex B (informative) Special cases
Annex C (informative) A-deviations
Bibliography
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