steel_in_housing

Courtesy of Econo Steel reference library. www.econosteel.com

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 OneSteels range of
structural steel. It contains span tables,
surface treatment specifications and
installation details on the use of
OneSteels structural steel products in
various residential building applications.

41 Fortescue Street,
Spring Hill Qld 4000
PO Box 304
Spring Hill Qld 4004
Australia
+61 7 3831 3533
+61 7 3832 3835
bris@mcwilliam.com.au
www.mcwilliam.com.au
Ken Bourke
Gerald Croucher
Mike Gould
Les Miethke
David Norris
Brian Wooldridge
Michael Blakeney
Greg Clowes
Geoff Curtis
Drew Gordon
Peter Melloy
Bryan Munns

Bearers
Timber or Steel
Floor Joists
B
A
Bearer to be
designed
Joist support
(unless joists are
cantilevered)
Not to scale
Bearer span
Load Width
= 0.6A if as shown
= 0.5A if the joists are
not continuous over the bearer
= A 2 /2B if joists are cantilevered

Strutting Beams
Underpurlin
Rafters
A
Strutting Beam
to be designed
Ceiling Joists
Hanging Beam
Not to scale
S
Strutting
Beam span
Load Area
= 0.25xAxS

Strutting/Hanging Beams
A
Rafter length, A
Ceiling Joists
B
Strutting/Hanging Beam
Not to scale
Strutting/Hanging
Beam Span
Load Width
= Maximum of
0.5A & 0.5B

Lintels
Truss Roof
A
Roof Trusses
Lintel to be
designed
Not to scale
Lintel span
Load Width
= A
Lintels
Conventional Roof
Ridge Beam
or Underpurlin
B
A
Rafters
Ceiling Joists
Not to scale
C
Lintel to be
designed
Lintel span
Load Width
= Maximum of
A 2 /2B & 0.5C

Lintels
Truss Roof and Floor
A
Roof Trusses
Not to scale
Floor Joists
D
C
Lintel span
Cantilevered
floor
Lintel to be
designed
Load Width
= Maximum of
A & C 2 /2D
Lintels
Conventional Roof and Floor
Ridge Beam
or Underpurlin
B
Rafters
A
Ceiling Joists
C
D
E
Cantilevered
floor
Lintel to be
designed
Not to scale
Lintel span
Load Width
= Maximum of
A 2 /2B & C 2 /2D

Lintels
Supporting Strutting Beams
Strutting Beam
(or Girder Truss)
Hanging Beam
Rafters
Ceiling Joists
B
A
Lintel to be
designed
Not to scale
Lintel span
Load Area
= 0.3xAxB

Verandah Beam
Rafters
B
A
Beam to be
designed
Not to scale
Beam Span
Load Width
= A 2 /2B

OneSteel Wire guarantees that wall ties corroded away, due to inadequate zinc
produced from its unique, purpose-specific coatings.
wire will meet the durability criteria 1
specified in AS/NZS 2699.1 2 (or, for
connectors and accessories, AS/NZS 2699.2) The Masonry Code (AS 3700, Masonry
for all corrosion classifications from R3 structures, published July 1998) specifies
down to R0.
performance requirements for work falling
within the scope of the Building Code of
Australia.
The poor performance of masonry in
It takes into account the need for improved
s t r u c t u r e s
construction practice, plus important recent
in the 1989 Newcastle earthquake dramatically
developments in masonry design. The current
illustrated the importance of correct
Masonry Code calls up AS/NZS 2699 and this
construction techniques and component
Standard requires a design life of at least 50
serviceability.
years for all in-built steel components.
The cost to the nation of the earthquake was
well over $1 billion, with most of the
structural damage being to masonry in both AS/NZS 2699:2000, In-built components for
old and recently masonry construction, is a new and
constructed buildings. Investigators comprehensive product manufacturing
attributed much of the masonry damage to Standard. Part 1 relates to wall ties, and Part
either inadequate or 2 to connectors and accessories.
completely missing wall ties. In many cases the
The Code divides, and defines, application
original steel wall ties were found to have
environments into five general corrosion
t o t a l l y
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.

(03) 9931 2600
Quality
Endorsed
Company
310 Selby Street North, Osborne Park, WA 6017
PO Box 1418, Osborne Park, WA 6017
Telephone: (08) 6332 3131
Facsimile: (08) 6332 3132
Courtesy of Econo Steel reference library. www.econosteel.com