NZS 4229:2013
Concrete masonry buildings not requiring specific engineering design
NZS 4229 provides methods for the design and construction of reinforced concrete masonry houses and small buildings with one, two or certain configurations of three storeys. Designers, architects, and block layers will find it useful. It provides a way of complying with the New Zealand Building Code requirements for the structure of these buildings including their foundations, wall layout, lintels, bracing systems, and reinforcement bars when read along with Acceptable Solution B1/AS1.
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1 SCOPE AND INTERPRETATION
1.1 Scope
1.2 Interpretation
1.3 Definitions
2 GENERAL
2.1 Materials
2.2 Workmanship, construction, and tolerances
2.3 Surface coatings
2.4 Maintenance
3 SITE REQUIREMENTS
3.1 Soil bearing capacity
3.2 Soil types
3.3 Test method for soil bearing capacity
3.4 Bearing
3.5 Site preparation
3.6 Water in subfloor spaces
3.7 Effects of tree roots on foundations
4 BRACING DEMAND
4.1 General
4.2 Earthquake zones
4.3 Calculations of bracing demand – Wind
4.4 Calculation of bracing demand – Earthquake
5 WALL BRACING CAPACITY
5.1 General
5.2 Bracing panels within structural walls
5.3 Reinforcement of bracing panels
5.4 Non-continuous walls
5.5 Masonry frames
6 FOOTINGS
6.1 General
6.2 Width of footings
6.3 Reinforced concrete footings
6.4 Reinforced masonry footings
6.5 Mass concrete subfootings
6.6 Reinforcement of footings
6.7 Vertical wall starter reinforcement
6.8 Footings for isolated transverse walls
7 FOUNDATION WALLS AND CONCRETE SLAB-ON-GROUND
7.1 Foundation walls
7.2 Slab-on-ground
7.3 Granular base
7.4 Damp-proof membrane
7.5 Bituminous sheet damp-proof membranes
7.6 Polyethylene (polythene) sheet damp-proof membranes
7.7 Rubber emulsion damp-proof membranes
7.8 Slab-on-ground construction
7.9 Bearing
7.10 Underfloor thermal insulation
7.11 Support of loadbearing internal walls
8 WALLS
8.1 General
8.2 Wall systems to resist vertical loads
8.3 Structural walls
8.4 Systems to resist horizontal forces
8.5 Bracing units and elements
8.6 Wall bracing elements in external walls not connected to a structural diaphragm
8.7 Wall bracing elements in internal walls on bracing lines
8.8 Structural diaphragms
9 DIAPHRAGMS
9.1 General
9.2 Roof and ceiling diaphragms
9.3 Timber floor diaphragms
9.4 Concrete diaphragms
9.5 Openings in diaphragms
10 BOND BEAMS
10.1 General
10.2 Bracing line support systems
10.3 Structural diaphragm systems
10.4 Intersection of bond beams
10.5 Gable-shaped walls
11 LINTELS AND COLUMNS
11.1 General
11.2 Size and reinforcement of lintels
11.3 Combination of lintels and bond beams
11.4 Wall columns
11.5 Isolated columns
12 SHRINKAGE
12.1 Shrinkage control joints
13 MASONRY VENEER WALL COVERING
Appendix A – MASONRY RETAINING WALLS (Normative)
Appendix B – Cantilevered walls (Normative)
Appendix D – Design examples and background information on derivation of design tables (Informative)
Appendix E – Masonry veneer wall covering (Informative)
Figure 1.1 – Building types covered by this Standard (see 1.1.3(e))
Figure 3.1 – Relationship of foundation to sloping ground surface
Figure 4.1 – Earthquake zones (see 4.2)
Figure 4.2 – Directions of wind and braced walls (see Table 4.2)
Figure 4.3 – Building storeys (see Table 4.3)
Figure 6.1 – Roof weight contribution kN/m (see 6.2.2)
Figure 6.2 – Suspended floor weight contribution (see 6.2.2)
Figure 6.3 – Reinforced masonry footing (see 6.4.1)
Figure 6.4 – Mass concrete subfooting (see 6.5.1(b))
Figure 6.5 – Reinforcement of footings (see Table 6.2 and 6.6.2)
Figure 6.6 – Edge foundations (see 6.6.2)
Figure 6.7 – Stepped footing (see 6.6.4)
Figure 6.8 – Reinforcement at footing intersections (see 6.6.5)
Figure 7.1 – Minimum heights of finished concrete slab-on-ground floors above adjoining finished ground level (see 7.2.1)
Figure 7.2 – Permanent paving adjoining buildings with slab-on-ground floors (see 7.2.2)
Figure 7.3 – Construction of slabs-on-ground (see 7.4.1)
Figure 7.4 – Positioning of shrinkage control joints (see 7.8.5.2(a))
Figure 7.5 – Supplementary steel (see 7.8.5.2)
Figure 7.6 – Support of loadbearing internal walls (see 7.11.1)
Figure 8.1 – Reinforcement above and below openings (see 8.3.5)
Figure 8.2 – Bracing line support system (see 8.4.2(a))
Figure 8.3 – Structural diaphragm support systems (see 8.4.2(b))
Figure 8.4 – Two diaphragms braced by a common wall (see 8.8.3)
Figure 8.5 – One wall containing 30% of total bracing units (see 8.8.4)
Figure 9.1 – Diaphragm construction (see 9.1.2)
Figure 9.2 – Roof diaphragms (see 9.2.6.2)
Figure 9.3 – Sloping ceiling diaphragms – Sheet material on battened rafters (see 9.2.6.2)
Figure 9.4 – Horizontal ceiling diaphragms (see 9.2.6.2)
Figure 9.5 – Timber floor diaphragms connections (see 9.3.4.2)
Figure 9.6 – Concrete floor diaphragm details (see 9.4.1)
Figure 9.7 – Location of openings in diaphragm (see 9.5.1.2(a))
Figure 10.1 – Bond beam details – Bracing line system (see 10.2.1)
Figure 10.2 – Bond beam details – Diaphragm system (see 10.3.2)
Figure 10.3 – Bond beam intersections (see 10.4.1)
Figure 11.1 – Maximum lintel span at corner (see 11.2.3)
Figure 11.2 – Lintel reinforcement layouts (see 11.2.4)
Figure 11.3 – Wall column spacing (see 11.4.5)
Figure 12.1 – Location of control joints for shrinkage (see 12.1.1)
Figure 12.2 – Control joint detail for solid-filled walls and partially filled walls where horizontal bars are placed between floors but not bond beams (see 12.1.3)
Figure A1 – Retaining wall without surcharge
Figure A2 – Retaining wall with surcharge
Figure A3 – Retaining wall with backslope
Figure B1 – Cast-in-situ concrete piles centrally reinforced to support cantilevered walls (solid or partially filled) (For use in conjunction with Table B1 – see B4.1.1(a))
Figure B2 – Strip footing centrally placed under cantilevered walls (solid or partially filled) (For use in conjunction with Table B2 – see B4.3.2)
Figure B3 – Strip footing for cantilevered walls (solid or partially filled) where footing is on one side of wall (For use in conjunction with Table B3 – see B4.3.2)
Figure B4 – Strip footing consisting of floor slab on one side of a cantilevered wall (For use in conjunction with Table B4 – see B4.1.1(c))
Figure D1 – Example calculation of roof weight contribution (see D3.4)
Figure D2 – Bracing capacity example (see D3.6)
Figure D3 – Strain and force diagram (see D4.2.2)
- B1
- E1
- G13
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References
Built-in components for masonry construction - Wall ties
Built-in components for masonry construction - Lintels and shelf angles (durability requirements)
Masonry units, pavers, flags and segmental retaining wall units - Masonry units
Specification for concrete production
Methods of testing soils for civil engineering purposes - Soil classification tests - Test 2.6 Determination of the linear shrinkage
Related Information
Building Code Compliance Document B1
Ministry: Ministry of Business, Innovation, and Employment - Building Systems Performance (BSP)
Section: AS1, AS3
Citation context:Building Code Compliance Document G13
Ministry: Ministry of Business, Innovation, and Employment - Building Systems Performance (BSP)
Section: AS2
Citation context:Building Code Compliance Document E1
Ministry: Ministry of Business, Innovation, and Employment - Building Systems Performance (BSP)
Section: AS1
Citation context:Similar Standards
-
AS/NZS 2699.1:2000
Built-in components for masonry construction - Wall ties
-
AS/NZS 2699.2:2000
Built-in components for masonry construction - Connectors and accessories
-
AS/NZS 2699.3:2002
Built-in components for masonry construction - Lintels and shelf angles (durability requirements)
-
AS/NZS 3725 Supplement 1:2007
Design for installation of buried concrete pipes – Commentary
1 SCOPE AND INTERPRETATION
1.1 Scope
1.2 Interpretation
1.3 Definitions
2 GENERAL
2.1 Materials
2.2 Workmanship, construction, and tolerances
2.3 Surface coatings
2.4 Maintenance
3 SITE REQUIREMENTS
3.1 Soil bearing capacity
3.2 Soil types
3.3 Test method for soil bearing capacity
3.4 Bearing
3.5 Site preparation
3.6 Water in subfloor spaces
3.7 Effects of tree roots on foundations
4 BRACING DEMAND
4.1 General
4.2 Earthquake zones
4.3 Calculations of bracing demand – Wind
4.4 Calculation of bracing demand – Earthquake
5 WALL BRACING CAPACITY
5.1 General
5.2 Bracing panels within structural walls
5.3 Reinforcement of bracing panels
5.4 Non-continuous walls
5.5 Masonry frames
6 FOOTINGS
6.1 General
6.2 Width of footings
6.3 Reinforced concrete footings
6.4 Reinforced masonry footings
6.5 Mass concrete subfootings
6.6 Reinforcement of footings
6.7 Vertical wall starter reinforcement
6.8 Footings for isolated transverse walls
7 FOUNDATION WALLS AND CONCRETE SLAB-ON-GROUND
7.1 Foundation walls
7.2 Slab-on-ground
7.3 Granular base
7.4 Damp-proof membrane
7.5 Bituminous sheet damp-proof membranes
7.6 Polyethylene (polythene) sheet damp-proof membranes
7.7 Rubber emulsion damp-proof membranes
7.8 Slab-on-ground construction
7.9 Bearing
7.10 Underfloor thermal insulation
7.11 Support of loadbearing internal walls
8 WALLS
8.1 General
8.2 Wall systems to resist vertical loads
8.3 Structural walls
8.4 Systems to resist horizontal forces
8.5 Bracing units and elements
8.6 Wall bracing elements in external walls not connected to a structural diaphragm
8.7 Wall bracing elements in internal walls on bracing lines
8.8 Structural diaphragms
9 DIAPHRAGMS
9.1 General
9.2 Roof and ceiling diaphragms
9.3 Timber floor diaphragms
9.4 Concrete diaphragms
9.5 Openings in diaphragms
10 BOND BEAMS
10.1 General
10.2 Bracing line support systems
10.3 Structural diaphragm systems
10.4 Intersection of bond beams
10.5 Gable-shaped walls
11 LINTELS AND COLUMNS
11.1 General
11.2 Size and reinforcement of lintels
11.3 Combination of lintels and bond beams
11.4 Wall columns
11.5 Isolated columns
12 SHRINKAGE
12.1 Shrinkage control joints
13 MASONRY VENEER WALL COVERING
Appendix A – MASONRY RETAINING WALLS (Normative)
Appendix B – Cantilevered walls (Normative)
Appendix D – Design examples and background information on derivation of design tables (Informative)
Appendix E – Masonry veneer wall covering (Informative)
Figure 1.1 – Building types covered by this Standard (see 1.1.3(e))
Figure 3.1 – Relationship of foundation to sloping ground surface
Figure 4.1 – Earthquake zones (see 4.2)
Figure 4.2 – Directions of wind and braced walls (see Table 4.2)
Figure 4.3 – Building storeys (see Table 4.3)
Figure 6.1 – Roof weight contribution kN/m (see 6.2.2)
Figure 6.2 – Suspended floor weight contribution (see 6.2.2)
Figure 6.3 – Reinforced masonry footing (see 6.4.1)
Figure 6.4 – Mass concrete subfooting (see 6.5.1(b))
Figure 6.5 – Reinforcement of footings (see Table 6.2 and 6.6.2)
Figure 6.6 – Edge foundations (see 6.6.2)
Figure 6.7 – Stepped footing (see 6.6.4)
Figure 6.8 – Reinforcement at footing intersections (see 6.6.5)
Figure 7.1 – Minimum heights of finished concrete slab-on-ground floors above adjoining finished ground level (see 7.2.1)
Figure 7.2 – Permanent paving adjoining buildings with slab-on-ground floors (see 7.2.2)
Figure 7.3 – Construction of slabs-on-ground (see 7.4.1)
Figure 7.4 – Positioning of shrinkage control joints (see 7.8.5.2(a))
Figure 7.5 – Supplementary steel (see 7.8.5.2)
Figure 7.6 – Support of loadbearing internal walls (see 7.11.1)
Figure 8.1 – Reinforcement above and below openings (see 8.3.5)
Figure 8.2 – Bracing line support system (see 8.4.2(a))
Figure 8.3 – Structural diaphragm support systems (see 8.4.2(b))
Figure 8.4 – Two diaphragms braced by a common wall (see 8.8.3)
Figure 8.5 – One wall containing 30% of total bracing units (see 8.8.4)
Figure 9.1 – Diaphragm construction (see 9.1.2)
Figure 9.2 – Roof diaphragms (see 9.2.6.2)
Figure 9.3 – Sloping ceiling diaphragms – Sheet material on battened rafters (see 9.2.6.2)
Figure 9.4 – Horizontal ceiling diaphragms (see 9.2.6.2)
Figure 9.5 – Timber floor diaphragms connections (see 9.3.4.2)
Figure 9.6 – Concrete floor diaphragm details (see 9.4.1)
Figure 9.7 – Location of openings in diaphragm (see 9.5.1.2(a))
Figure 10.1 – Bond beam details – Bracing line system (see 10.2.1)
Figure 10.2 – Bond beam details – Diaphragm system (see 10.3.2)
Figure 10.3 – Bond beam intersections (see 10.4.1)
Figure 11.1 – Maximum lintel span at corner (see 11.2.3)
Figure 11.2 – Lintel reinforcement layouts (see 11.2.4)
Figure 11.3 – Wall column spacing (see 11.4.5)
Figure 12.1 – Location of control joints for shrinkage (see 12.1.1)
Figure 12.2 – Control joint detail for solid-filled walls and partially filled walls where horizontal bars are placed between floors but not bond beams (see 12.1.3)
Figure A1 – Retaining wall without surcharge
Figure A2 – Retaining wall with surcharge
Figure A3 – Retaining wall with backslope
Figure B1 – Cast-in-situ concrete piles centrally reinforced to support cantilevered walls (solid or partially filled) (For use in conjunction with Table B1 – see B4.1.1(a))
Figure B2 – Strip footing centrally placed under cantilevered walls (solid or partially filled) (For use in conjunction with Table B2 – see B4.3.2)
Figure B3 – Strip footing for cantilevered walls (solid or partially filled) where footing is on one side of wall (For use in conjunction with Table B3 – see B4.3.2)
Figure B4 – Strip footing consisting of floor slab on one side of a cantilevered wall (For use in conjunction with Table B4 – see B4.1.1(c))
Figure D1 – Example calculation of roof weight contribution (see D3.4)
Figure D2 – Bracing capacity example (see D3.6)
Figure D3 – Strain and force diagram (see D4.2.2)
- B1
- E1
- G13
Previous versions
NZS 4229:2013
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.