NZS 3106:2009
Design of concrete structures for the storage of liquids
This Standard provides design information that meets the requirements of the New Zealand Building Code and is intended to be used by engineers and others involved in new storage tank projects. It provides a basis for designing concrete structures for the storage of liquids that will require only limited periodic maintenance to remain serviceable for their design life, and will not allow an uncontrolled, rapid loss of the liquid contents in extreme events such as a major earthquake.
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Committee Representation
Acknowledgement
Copyright
CONTENTS
REFERENCED DOCUMENTS
LATEST REVISIONS
REVIEW OF STANDARDS
Foreword
Outcome statement
1 GENERAL
1.1 Scope
1.2 New Zealand building legislation
1.3 Interpretation
1.4 Appendices
1.5 Design and construction
2 DEFINITIONS AND ABBREVIATIONS
2.1 Definitions
2.2 Abbreviations
2.3 Notation
3 GENERAL DESIGN REQUIREMENTS
3.1 Design methods
3.2 Support structures
3.3 Tanks storing portable water
3.4 Pipework
3.5 Freeboard
4 LOADS AND LOAD COMBINATIONS
4.1 General
4.2 Loads and other actions
4.3 Load control
4.4 Non-symmetric loads for circular tank
4.5 Load combinations for serviceability limit state
4.6 Load combinations for ultimate limit state
5 DESIGN FOR SERVICEABILITY
5.1 General considerations
5.2 Reinforced concrete
5.3 Prestressed concrete
6 DESIGN FOR STRENGTH AND STABILITY AT THE ULTIMATE LIMIT STATE
6.1 General
6.2 Stability design
6.4 Minimum reinforcement
7 DESIGN FOR DURABILITY
APPENDIX
A – EARTHQUAKE ACTIONS
A1 General
A2 Earthquake actions
A3 Structural analysis
B – DESIGN OF REINFORCEMENT TO CONTROL CRACKING
B1 Calculation of crack widths
C – TESTING
C1 General
C2 Testing for liquid tightness
C3 Testing of liquid retaining structures
C4 Testing of roofs
D – THERMAL STRESS COEFFICIENTS
D1 General
D2 Average temperature change
D3 Differential temperature change
D4 Total temperature change
D5 Stresses
Table
1 – Roof temperature criteria
2 – Moisture variation – Shrinkage and swelling strains
3 – Liquid tightness class and leakage control provisions for Group A loads
4 – Reinforcement ratio for fully restrained concrete
5 – Limiting stresses in steel reinforcement where compression zone depth complies with 5.1.1
6 – Limiting stresses in steel reinforcement where compression zone depth is less than 5.1.1
7 – Limiting stresses in prestressed concrete
8 – Exposure classifications
A1 – Displacement ductility factor, μ
A2 – Correction factor kf (μ,ξi)
B1 – Ratio of bond strength
B2 – Strength and deformation characteristics for concrete
D1 – Thermal stress coefficients – Pinned-base condition
D2 – Thermal stress coefficients – Fixed-base condition
D3 – Thermal stress coefficients – Sliding-base condition
Figure
1 – Temperature distributions in tank walls
2 – Effective concrete area
3 – Reduction of stiffness of doubly reinforced wall on cracking (includingtension stiffening effect)
A1 – Damping for horizontal impulsive mode
A2 – Damping for vertical impulsive mode
A3 – Dimensionless period for fundamental sloshing model
A4 – Equivalent weights of impulsive and convective contents (circularand rectangular tanks)
A5 – Equivalent weight distribution
A6 – Horizontal force distribution
A7 – Equivalent heights of impulsive and convective weights for overturning (circular and rectangular tanks)
A8 – Approximate method for estimating buoyancy pressure on roof
B1 – Effective tension area
B2 – Crack width, w, at concrete surface relative to distance from bar
D1 – Differential temperature change
D2 – Total temperature change
© 2009 STANDARDS COUNCIL
- B1
- G14
Previous versions
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Related Information
Building Code Compliance Document G14
Ministry: Ministry of Business, Innovation, and Employment - Building Systems Performance (BSP)
Section: VM1
Citation context:Building Code Compliance Document B1
Ministry: Ministry of Business, Innovation, and Employment - Building Systems Performance (BSP)
Section: VM1
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Committee Representation
Acknowledgement
Copyright
CONTENTS
REFERENCED DOCUMENTS
LATEST REVISIONS
REVIEW OF STANDARDS
Foreword
Outcome statement
1 GENERAL
1.1 Scope
1.2 New Zealand building legislation
1.3 Interpretation
1.4 Appendices
1.5 Design and construction
2 DEFINITIONS AND ABBREVIATIONS
2.1 Definitions
2.2 Abbreviations
2.3 Notation
3 GENERAL DESIGN REQUIREMENTS
3.1 Design methods
3.2 Support structures
3.3 Tanks storing portable water
3.4 Pipework
3.5 Freeboard
4 LOADS AND LOAD COMBINATIONS
4.1 General
4.2 Loads and other actions
4.3 Load control
4.4 Non-symmetric loads for circular tank
4.5 Load combinations for serviceability limit state
4.6 Load combinations for ultimate limit state
5 DESIGN FOR SERVICEABILITY
5.1 General considerations
5.2 Reinforced concrete
5.3 Prestressed concrete
6 DESIGN FOR STRENGTH AND STABILITY AT THE ULTIMATE LIMIT STATE
6.1 General
6.2 Stability design
6.4 Minimum reinforcement
7 DESIGN FOR DURABILITY
APPENDIX
A – EARTHQUAKE ACTIONS
A1 General
A2 Earthquake actions
A3 Structural analysis
B – DESIGN OF REINFORCEMENT TO CONTROL CRACKING
B1 Calculation of crack widths
C – TESTING
C1 General
C2 Testing for liquid tightness
C3 Testing of liquid retaining structures
C4 Testing of roofs
D – THERMAL STRESS COEFFICIENTS
D1 General
D2 Average temperature change
D3 Differential temperature change
D4 Total temperature change
D5 Stresses
Table
1 – Roof temperature criteria
2 – Moisture variation – Shrinkage and swelling strains
3 – Liquid tightness class and leakage control provisions for Group A loads
4 – Reinforcement ratio for fully restrained concrete
5 – Limiting stresses in steel reinforcement where compression zone depth complies with 5.1.1
6 – Limiting stresses in steel reinforcement where compression zone depth is less than 5.1.1
7 – Limiting stresses in prestressed concrete
8 – Exposure classifications
A1 – Displacement ductility factor, μ
A2 – Correction factor kf (μ,ξi)
B1 – Ratio of bond strength
B2 – Strength and deformation characteristics for concrete
D1 – Thermal stress coefficients – Pinned-base condition
D2 – Thermal stress coefficients – Fixed-base condition
D3 – Thermal stress coefficients – Sliding-base condition
Figure
1 – Temperature distributions in tank walls
2 – Effective concrete area
3 – Reduction of stiffness of doubly reinforced wall on cracking (includingtension stiffening effect)
A1 – Damping for horizontal impulsive mode
A2 – Damping for vertical impulsive mode
A3 – Dimensionless period for fundamental sloshing model
A4 – Equivalent weights of impulsive and convective contents (circularand rectangular tanks)
A5 – Equivalent weight distribution
A6 – Horizontal force distribution
A7 – Equivalent heights of impulsive and convective weights for overturning (circular and rectangular tanks)
A8 – Approximate method for estimating buoyancy pressure on roof
B1 – Effective tension area
B2 – Crack width, w, at concrete surface relative to distance from bar
D1 – Differential temperature change
D2 – Total temperature change
© 2009 STANDARDS COUNCIL
- B1
- G14
Previous versions
NZS 3106:2009
Online Library subscription information
Online library subscriptions provide a cost-effective solution for organisations of any size to access the latest standards, offering 24/7 access to a personalised catalogue. The service ensures subscribers have have the most up-to-date version of selected standards, incluing automatic updates for any amendments or versions. Pricing is dependent on the chosen standards and the number of concurrent users, with discounts applied from the standards PDF price. For customised subscriptions or further inquiries, contact the Online Library team.