NZS 4297:2020
Engineering design of earth buildings
Objective is to provide a core resource for building consent authorities determining compliance with the New Zealand Building Code (NZBC) and has given guidance to designers, builders, owner-builders and others involved in the construction of successful earth walled buildings in New Zealand, and elsewhere around the world. There has been no failure reported to date of any earth building built in accordance with this suite of standards. Earth walled construction continues to be relevant at a time when the sustainability and decarbonising of the built environment is under scrutiny. Earthen materials are minimally processed, have low toxicity, and are available locally. This will encourage and enable the uptake of local earthen materials with very low embodied energy within a decarbonising building industry. The revised standard continues to be a core resource and reflect advances in earth building practice, research, changes in referenced standards, and changes in building legislation: the Building Act 2004 and the New Zealand Building Code.
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NZS 4297:2020 Engineering design of earth buildings
CONTENTS
1 GENERAL
1.1 Objective
1.2 Scope
1.3 Interpretation
1.4 Seismic hazard factor
1.5 Responsibility for design
1.6 Construction monitoring
1.7 Definitions
1.8 Abbreviations
1.9 Notation
2 LIMIT STATE DESIGN REQUIREMENTS AND MATERIAL PROPERTIES
2.1 Notation
2.2 Scope
2.3 Design objectives
2.4 Earth building materials
2.5 Strength
2.6 Ultimate limit state requirements
2.7 Principles and requirements additional to 2.6 for members designed for seismic loading
2.8 Control joints and shrinkage
3 DESIGN ALLOWANCE FOR DURABILITY
3.1 General
3.2 Earth materials
3.3 Timber
3.4 Concrete
4 DESIGN FOR FIRE RESISTANCE
4.1 Fire resistance of earth construction
4.2 No penetrations
4.3 Strength and stability during and after fire
4.4 Fire resistance values
5 REINFORCEMENT – DETAILS, ANCHORAGE, AND DEVELOPMENT
5.1 Notation
5.2 Scope
5.3 General principles and requirements for members designed for seismic loading
6 FOUNDATIONS
6.1 Notation
6.2 General principles and requirements
6.3 Loads and reactions
6.4 Principles and requirements additional to 6.3 for foundations designed for seismic loading
7 STRUCTURAL WALLS AND COLUMNS – STRENGTH AND SERVICEABILITY
7.1 Notation
7.2 General
7.3 Shear strength of bolts embedded in earth
7.4 Flexure with or without axial load
7.5 Shear
8 COLUMNS
8.1 General
8.2 Notation
8.3 Strength calculations
8.4 Column construction
8.5 Column durability
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NZS 4297:2020 Engineering design of earth buildings
CONTENTS
1 GENERAL
1.1 Objective
1.2 Scope
1.3 Interpretation
1.4 Seismic hazard factor
1.5 Responsibility for design
1.6 Construction monitoring
1.7 Definitions
1.8 Abbreviations
1.9 Notation
2 LIMIT STATE DESIGN REQUIREMENTS AND MATERIAL PROPERTIES
2.1 Notation
2.2 Scope
2.3 Design objectives
2.4 Earth building materials
2.5 Strength
2.6 Ultimate limit state requirements
2.7 Principles and requirements additional to 2.6 for members designed for seismic loading
2.8 Control joints and shrinkage
3 DESIGN ALLOWANCE FOR DURABILITY
3.1 General
3.2 Earth materials
3.3 Timber
3.4 Concrete
4 DESIGN FOR FIRE RESISTANCE
4.1 Fire resistance of earth construction
4.2 No penetrations
4.3 Strength and stability during and after fire
4.4 Fire resistance values
5 REINFORCEMENT – DETAILS, ANCHORAGE, AND DEVELOPMENT
5.1 Notation
5.2 Scope
5.3 General principles and requirements for members designed for seismic loading
6 FOUNDATIONS
6.1 Notation
6.2 General principles and requirements
6.3 Loads and reactions
6.4 Principles and requirements additional to 6.3 for foundations designed for seismic loading
7 STRUCTURAL WALLS AND COLUMNS – STRENGTH AND SERVICEABILITY
7.1 Notation
7.2 General
7.3 Shear strength of bolts embedded in earth
7.4 Flexure with or without axial load
7.5 Shear
8 COLUMNS
8.1 General
8.2 Notation
8.3 Strength calculations
8.4 Column construction
8.5 Column durability
Previous versions
NZS 4297:2020
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.