Structural Steel in Housing...Structural steel is playing an increasingly important role in...

Structural steel is playing an

increasingly important role in

traditional and medium density

housing with its versatility, strength

and competitive price.

OneSteel produces a unique range

of steel beams, columns, channels and

angles which are suitable for use in

domestic housing as floor bearers,

joists, roof strutting beams, lintels,

piling and other applications.

This booklet has been compiled to assist

builders, draftspersons and designers to

specify and use OneSteel�s range of

structural steel. It contains span tables,

surface treatment specifications and

installation details on the use of

OneSteel�s structural steel products in

various residential building applications.

��

Structural steel is playing an

increasingly important role in

traditional and medium density

housing with its versatility, strength

and competitive price.

OneSteel produces a unique range

of steel beams, columns, channels and

angles which are suitable for use in

domestic housing as floor bearers,

joists, roof strutting beams, lintels,

piling and other applications.

This booklet has been compiled to assist

builders, draftspersons and designers to

specify and use OneSteel�s range of

structural steel. It contains span tables,

surface treatment specifications and

installation details on the use of

OneSteel�s structural steel products in

various residential building applications.

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��41 Fortescue Street,Spring Hill Qld 4000PO Box 304Spring Hill Qld 4004Australia

��+61 7 3831 3533

��+61 7 3832 3835

��bris@mcwilliam.com.au

��www.mcwilliam.com.au

Ken BourkeGerald CroucherMike GouldLes MiethkeDavid NorrisBrian Wooldridge

Michael BlakeneyGreg ClowesGeoff CurtisDrew GordonPeter MelloyBryan Munns

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��41 Fortescue Street,Spring Hill Qld 4000PO Box 304Spring Hill Qld 4004Australia

��+61 7 3831 3533

��+61 7 3832 3835

��bris@mcwilliam.com.au

��www.mcwilliam.com.au

Ken BourkeGerald CroucherMike GouldLes MiethkeDavid NorrisBrian Wooldridge

Michael BlakeneyGreg ClowesGeoff CurtisDrew GordonPeter MelloyBryan Munns

��

Bearer span

Bearer to bedesigned

Timber or SteelFloor Joists

Bearers

Not to scale

Joist support(unless joists are

cantilevered)

Load Width= 0.6A if as shown= 0.5A if the joists are not continuous over the bearer= A2/2B if joists are cantilevered

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Bearer span

Bearer to bedesigned

Timber or SteelFloor Joists

Bearers

Not to scale

Joist support(unless joists are

cantilevered)

Load Width= 0.6A if as shown= 0.5A if the joists are not continuous over the bearer= A2/2B if joists are cantilevered

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Rafters

Ceiling Joists

Strutting Beams

Underpurlin

Hanging Beam

Not to scale

Load Area= 0.25xAxS

SStrutting

Beam span

Strutting Beamto be designed

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Rafters

Ceiling Joists

Strutting Beams

Underpurlin

Hanging Beam

Not to scale

Load Area= 0.25xAxS

SStrutting

Beam span

Strutting Beamto be designed

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Strutting/Hanging Beam

Rafter length, A

Ceiling Joists

Strutting/Hanging Beams

Strutting/HangingBeam Span Load Width

= Maximum of 0.5A & 0.5BNot to scale

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Strutting/Hanging Beam

Rafter length, A

Ceiling Joists

Strutting/Hanging Beams

Strutting/HangingBeam Span Load Width

= Maximum of 0.5A & 0.5BNot to scale

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Lintel span

Load Width= A

Not to scale

LintelsTruss Roof

Roof Trusses

Lintel to bedesigned

Lintel span

Ceiling Joists

Not to scale

Rafters

LintelsConventional Roof

= Maximum of

Load Width

A2/2B & 0.5C

Ridge Beamor Underpurlin

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Lintel span

Load Width= A

Not to scale

LintelsTruss Roof

Roof Trusses

Lintel span

Ceiling Joists

Not to scale

Rafters

LintelsConventional Roof

= Maximum of

Load Width

A2/2B & 0.5C

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Not to scale

Lintel span

Roof Trusses

Floor Joists

LintelsTruss Roof and Floor

Cantileveredfloor

Load Width

A & C2/2D= Maximum of

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Not to scale

Lintel span

Ceiling Joists

RaftersLintelsConventional Roof and Floor

Cantileveredfloor

Lintel to bedesignedD

Load Width= Maximum ofA2/2B & C2/2D

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Not to scale

Lintel span

Roof Trusses

Floor Joists

LintelsTruss Roof and Floor

Cantileveredfloor

Load Width

A & C2/2D= Maximum of

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Not to scale

Lintel span

Ceiling Joists

RaftersLintelsConventional Roof and Floor

Cantileveredfloor

Lintel to bedesignedD

Load Width= Maximum ofA2/2B & C2/2D

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Lintel span

Ceiling Joists

Rafters

Strutting Beam(or Girder Truss)

Hanging Beam

LintelsSupporting Strutting Beams

Load Area= 0.3xAxB

Not to scale

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Lintel span

Ceiling Joists

Rafters

Strutting Beam(or Girder Truss)

Hanging Beam

LintelsSupporting Strutting Beams

Load Area= 0.3xAxB

Not to scale

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Beam to bedesigned

Rafters

Verandah Beam

Beam SpanLoad Width= A2/2B

Not to scale

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Beam to bedesigned

Rafters

Verandah Beam

Beam SpanLoad Width= A2/2B

Not to scale

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OneSteel Wire guarantees that wall tiesproduced from its unique, purpose-specificwire will meet the durability criteria1

specified in AS/NZS 2699.12 (or, forconnectors and accessories, AS/NZS 2699.2)for all corrosion classifications from R3down to R0.

��The poor performance of masonry ins t r u c t u r e sin the 1989 Newcastle earthquake dramatically illustrated the importance of correctconstruction techniques and componentserviceability.

The cost to the nation of the earthquake waswell over $1 billion, with most of thestructural damage being to masonry � in bothold and recently constructed buildings. Investigatorsattributed much of the masonry damage toeither inadequate or completely missing wall ties. In many cases the original steel wall ties were found to havet o t a l l y

corroded away, due to inadequate zinccoatings.

��The Masonry Code (AS 3700, Masonrystructures, published July 1998) specifiesperformance requirements for work fallingwithin the scope of the Building Code ofAustralia.

It takes into account the need for improvedconstruction practice, plus important recentdevelopments in masonry design. The currentMasonry Code calls up AS/NZS 2699 and thisStandard requires a design life of at least 50years for all in-built steel components.

��AS/NZS 2699:2000, In-built components formasonry construction, is a new andcomprehensive product manufacturingStandard. Part 1 relates to wall ties, and Part2 to connectors and accessories.

The Code divides, and defines, applicationenvironments into five general corrosion

1 Provided the zinc coating is not materially damaged.2 Tie manufacturers should be aware that AS/NZS2699.1 contains requirements on the structural performance of ties, relating to their design. This aspect is beyond the control of OneSteel Wire.

3 More than 1km from a surf beach. 4 Arid areas.

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QualityEndorsedCompany

��

OneSteel Wire guarantees that wall tiesproduced from its unique, purpose-specificwire will meet the durability criteria1

specified in AS/NZS 2699.12 (or, forconnectors and accessories, AS/NZS 2699.2)for all corrosion classifications from R3down to R0.

��The poor performance of masonry ins t r u c t u r e sin the 1989 Newcastle earthquake dramatically illustrated the importance of correctconstruction techniques and componentserviceability.

The cost to the nation of the earthquake waswell over $1 billion, with most of thestructural damage being to masonry � in bothold and recently constructed buildings. Investigatorsattributed much of the masonry damage toeither inadequate or completely missing wall ties. In many cases the original steel wall ties were found to havet o t a l l y

corroded away, due to inadequate zinccoatings.

��The Masonry Code (AS 3700, Masonrystructures, published July 1998) specifiesperformance requirements for work fallingwithin the scope of the Building Code ofAustralia.

It takes into account the need for improvedconstruction practice, plus important recentdevelopments in masonry design. The currentMasonry Code calls up AS/NZS 2699 and thisStandard requires a design life of at least 50years for all in-built steel components.

��AS/NZS 2699:2000, In-built components formasonry construction, is a new andcomprehensive product manufacturingStandard. Part 1 relates to wall ties, and Part2 to connectors and accessories.

The Code divides, and defines, applicationenvironments into five general corrosion

1 Provided the zinc coating is not materially damaged.2 Tie manufacturers should be aware that AS/NZS2699.1 contains requirements on the structural performance of ties, relating to their design. This aspect is beyond the control of OneSteel Wire.

3 More than 1km from a surf beach. 4 Arid areas.

��

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��

QualityEndorsedCompany(03) 9931 2600

310 Selby Street North, Osborne Park, WA 6017 PO Box 1418, Osborne Park, WA 6017 Telephone: (08) 6332 3131 Facsimile: (08) 6332 3132

Structural Steel in Housing...Structural steel is playing an increasingly important role in...

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