Structural Floor Panels Design Guide - Hebel Supercrete AAC ...

2.0 Design Considerations
2.1 General Design Criteria
2.1.1 Panel Layout
As with all types of floor design, the span between the
supporting structure, the orientation and size of the
support structure and the orientation of the floor panels
themselves, all need to be taken into consideration when
the preliminary design is prepared. These may impose
constraints on the possible arrangement and size of the
structure. As a general rule, Supercrete Structural Floor
Panels are better if all oriented in the same direction, so
that ring anchor reinforcing can be continuous. However,
this is not a mandatory requirement and it is often
necessary to orient panels in both north/south and east/
west directions (for instance) on the same floor level, to
make better use of the supporting structure, or to make
the supporting structure more cost effective.
Typical ring anchor set out
Detail No. SFP 2-0
Line of
support
below
Typical corner ring anchor setout
Line of
support
below
Setout of ring anchor with panels staggered
Line of
support
below
Ring
anchor
D 12
Ring
anchor
D 12
400 Lap
Setout of ring anchor with adjoining panels
40 min
40 min
2.1.2 Panel Thickness
It is often more economic to install all panels on a particular
level using the same panel thickness, even though some of
the panels with shorter spans could be of a lesser thickness,
as allowed by the load/span tables. This is because the
additional work involved in providing two levels of support
for the differing thicknesses, is outweighed by the additional
cost for some of the panels to be thicker than needed for
strength requirements. However differing panel thickness
can be used to advantage, for example, to give a step down
to a deck from a main floor, or for floor level showers or
wet areas needing to be set to a fall (see Details SFP 2-1
& SFP 2-2, pages 18 & 19).
Where free form or non rectangular floors are required,
additional care must be exercised to ensure that panels
that require site cutting, to fit the irregular shape, still have
sufficient edge support. For example, you cannot have
an angled panel tapering to zero width, without an outer
support following the angle. For these types of floors, it
is best to design the panel layout at the same time as the
overall design is being developed, so that full panel support
is incorporated in the design.
Floor panels in different orientations to suit
spans and supports.
Ring anchor steel is laced between the panels.
SFP 2012 16 Copyright © Supercrete Limited 2008