Floor Framing - AS1684.4

Building and Construction 1
CONSTRUCTION IV IN BUILDING & CONSTRUCTION
By (Name)
Course
Professor’s name
University name
City, State
Date of submission

Building and Construction 2

Building and Construction 3
Floor framing - AS1684.4
Q
no Answer Reason or Explanation
1i Suitable
Wind classification is suitable for this design because it has a
height of 5175mm which is within the permissible limit of
8500mm as given in AS 4055
ii Suitable The plan layout is partly L-shaped and rectangular which is
within the flexible limits for timber-framed construction
iii Single and two storey Depending on the timber strength, it can only support the
maximum load of a two story building according to AS 1684.4
iv Suitable The width is of the house is 11870mm which is within the
permissible limit which is 16000mm
v Suitable The wall height from floor to ceiling is 2450mm which is within
the permissible limit of 3000mm as stated in AS 1684.4
vi Suitable The hanging rafter is within the required limits
vii Suitable
The roof type shall be hip which is the same case with our house
and the roof pitch is 20⁰ which is within the maximum limit of
35⁰ is in compliance with AS 1684.4
2 Yes
The site has such topography that is able to support the structure,
the floor span is also within the maximum span for timber floor
construction, hence within the deflection limits
3 450mm
4 300mm. Reference from the BCA
5 No requirement for filling Suspended floor can be employed in the construction, hence pad
foundation can be used for construction.
6 50kPa,
Controlled fill is where a tested
material imported to the site or
found on site is placed in layers
of 150mm, the moisture content is
regulated by adding water using a

Building and Construction 4
compaction equipment
A rolled fill is an embankment of
the earth or rocks where the
material is placed in layers and
compacted using rolling
equipment. KPa is a unit for
measuring pressure. Allowable
bearing pressure is the maximum
stress that can be applied on a
foundation such that it is able to
withstand the shear failures.
7 Diagrams 3.2.5.4
In compliance with the BCA, an external wall should be non-
combustible and if made of a combustible material then it should
be in accordance with certain fire hazard properties so as to be
treated as an attachment.
8
A DPC is a barrier that prevents
moisture from penetrating
through a structure by capillary
action through the rising damp
phenomenon.
9
Thin material pieces of
impervious materials that are
installed to prevent water passage
through and into a structure
10 Windows, vent pipes, roofs walls,
door openings
11 Size of floor Framing Members - identify the location of timber stumps, bearer, joists
and the ledger on the plan below.