Design and manufacture of site built, vertical, cylindrical, flat-bottomed steel tanks for the storage of liquefied natural gases - Part 3: Concrete components
Design and Manufacture of Site Built, Vertical, Cylindrical, Flat-bottomed Steel Tanks for the Storage of Liquefied Natural Gases — Part 3: Concrete Components
1 Scope
This part specifies general requirements for materials, design and construction of the concrete components of the liquefied natural gas storage tanks.
This part is applicable to the design and manufacture of site built, vertical, cylindrical, flat-bottomed steel tanks for the storage of liquefied natural gases with operating temperatures between 0 °C and -165 °C.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 26978.1-2011 Design and Manufacture of Site Built, Vertical, Cylindrical, Flat-bottomed Steel Tanks for the Storage of Liquefied Natural Gases — Part 1: General
GB/T 26978.2-2011 Design and Manufacture of Site Built, Vertical, Cylindrical, Flat-bottomed Steel Tanks for the Storage of Liquefied Natural Gases — Part 2: Metallic Components
EN 206-1 Concrete — Part 1: Specification, Performance, Production and Conformity
EN 1992-1-1:2004 Eurocode 2: Design of Concrete Structures — Part 1-1: General Rules and Rules for Buildings
EN 1992-1-2:2004 Eurocode 2: Design of Concrete Structures — Part 1-2: General Rules — Structural Fire Design
3 Terms and Definitions
For the purposes of this document, the terms and definitions given in GB/T 26978.1-2011 and the following apply.
3.1
low temperature
temperature lower than -20 °C
4 General
For material selection and design of normal reinforced concrete and/or pre-stressed concrete structures, reference is made to EN 1992-1-1.
5 Vapour Tightness
To ensure vapour tightness of the outer tank (e.g. in a full containment tank) metallic liners or polymeric coatings shall be used.
Foreword III
1 Scope
2 Normative References
3 Terms and Definitions
4 General
5 Vapour Tightness
6 Materials
6.1 General
6.2 Concrete
6.3 Pre-stressing and reinforcing steel
6.3.1 Pre-stressing steel and anchors
6.3.2 Reinforcing steel
7 Design
7.1 General
7.2 Partial factors for actions and combinations of actions
7.3 Liquid tightness
8 Detailing Provisions
8.1 General
8.2 Pre-stressing
8.3 Wall design
8.4 Steel roof liner
8.5 Construction joints
8.6 Position of tendons and wires
8.7 Concrete cover
8.8 Minimum reinforcement
8.9 Reinforced concrete bund walls
9 Construction and Workmanship
9.1 General
9.2 Crack control
9.3 Formwork and tie-rods
9.4 Spacers
9.5 Curing
9.6 Tolerances
10 Liners and Coatings
10.1 General
10.2 Liners
10.3 Coatings
10.4 Thermal protection system (TPS)
Annex A (informative) Materials
Annex B (Informative) Pre-stressed Concrete Tank
Annex NA (Informative) Technical Deviations between This Part and EN 14620-3 2006 and Their Justifications
Bibliography
