BS EN 13084-2:2007

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Materials
   4.1 Concrete
        4.1.1 Normal-weight concrete for cast-in-situ
               chimneys
        4.1.2 Concrete for prefabricated chimneys
   4.2 Mortar for bedding of prefabricated elements
   4.3 Reinforcing steel
5 Material properties
6 Structural design
   6.1 Actions
   6.2 Effect of actions
        6.2.1 General
        6.2.2 Partial safety factors
        6.2.3 Moments of 2[nd] order
        6.2.4 Superposition of effects from thermal and
               other actions
   6.3 Verification
        6.3.1 General
        6.3.2 Ultimate limit state
        6.3.3 Serviceability limit state
7 Detailing provisions
   7.1 Cast-in-situ chimneys
        7.1.1 Minimum vertical reinforcement
        7.1.2 Minimum horizontal reinforcement
        7.1.3 Minimum reinforcement around openings
        7.1.4 Distance between bars
        7.1.5 Minimum concrete cover
        7.1.6 Minimum wall thickness
        7.1.7 Splices
   7.2 Prefabricated concrete chimneys
        7.2.1 Minimum reinforcement for transportation of
               prefabricated elements
        7.2.2 Minimum horizontal reinforcement
        7.2.3 Minimum concrete cover
        7.2.4 Minimum wall thickness
        7.2.5 Vertical continuous bundles of bars
        7.2.6 Openings
8 Workmanship
   8.1 General
   8.2 Bedding joints
   8.3 Reinforcement ducts
9 Quality control
   9.1 Cast-in-situ chimneys
   9.2 Prefabricated chimneys
Annex A (normative) Analysis of stresses due to thermal and
                    other actions
   A.1 Moment-curvature-relation
   A.2 Calculation procedure
Annex B (normative) Limitations of crack widths

Defines particular requirements and performance criteria for the design and construction of cast-in-situ concrete chimneys as well as prefabricated concrete chimneys. It identifies requirements to ensure the mechanical resistance and stability of concrete chimneys in accordance with the general requirements given in EN 13084-1.

This European Standard specifies particular requirements and performance criteria for the design and construction of cast-in-situ concrete chimneys as well as prefabricated concrete chimneys. It identifies requirements to ensure the mechanical resistance and stability of concrete chimneys in accordance with the general requirements given in EN 13084-1. As for chimneys attached to buildings the criteria given in Clause 1 of EN 13084-1:2000 apply. Unless otherwise stated in the following clauses the basic standard for the design of concrete structures, EN 1992 1 1, applies.