Construction IV in Building & Construction - Floor Framing AS1684.4

CONSTRUCTION IV IN BUILDING & CONSTRUCTION
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Floor framing - AS1684.4
Q
no Answer Reason or Explanation
1i Suitable The building is to be built in a city square whose perimeter has an
estimate of over 250,000 meters squared of open field.
ii Suitable The plan layout is partly L-shaped and rectangular which is within
the physical 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.
iv Suitable The width is less than 16m which is the maximum
v Suitable The wall height is within the limits of 3000mm
vi Suitable The hanging rafter is within the standard limits
vii Suitable Roof pitch is 30⁰ which is within the maximum limit of 35⁰
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
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.