| Propped Steel Portal
Frame Warehouse Buildings
Steel
frame portal buildings are ideal for construction of storage buildings
and other buildings when on a budget. Minimal interior finishing is
necessary however protection from the elements is the key objective.
Providing maximum open space a steel portal framed building is ideal
structure for both retail and whole sale warehouses. Other such uses
can be private aircraft hangars and agricultural structures including
barns. As the spans get wide, the cost of the portal frames will
increase, however further economy can be obtained by using a row of
props on the centre line; or two or more rows of props which will
reduce the span.
This
type of construction takes advantage of the strength and durability of
steel by positioning it in such a way as to construct a sturdy frame
that does not need interior reinforcement other than rows of pillars
that do not occupy significant amounts of space. In fact, these
interior pillars can be taken advantage of to help organize materials
that might be stored or offered for sale in a warehouse built with this
technique, or to store tools, lubricants and similar objects behind the
pillars so that they do not damage an aircraft which is kept in the
central open space of a hangar In a storage building,the internal
columns can be aligned to fit the racking module, or the racking can be
designed to act as props to help support the rafters. The structural
format is also ideal for agricultural use as pens or other means of
keeping livestock separate, as there is sufficient room for these to be
placed between each of the pillars. Rows of props can be used for
building internal partitions, or cold store rooms, or offices or plant
rooms.
A
steel frame portal building can even be constructed as a low rise
multi-story building, such as a warehouse with sales and administration
offices located on a mezzanine level above the storage space, or a
bonded customs warehouse where clearance procedures are carried out in
the upper story offices before items are released for transit from the
warehouse below. Indeed, propped steel portal framed buildings are the
ideal solution when open space is at a premium and economy of
construction is paramount.
We
at REIDsteel much prefer to make buildings with a
row of props at the ridge rather than as two span portals with a
central valley gutter. A ridge is much less of a maintenance problem
compared to a valley gutter.
As
a propped portal becomes wider, the ridge height goes up. Because of
the wider spans, a decent roof slope is needed, especially as the
distance from the ridge increases, and therefore the amount of
rainwater on the roof gets bigger; it is often an advantage to have a
segmented paraboloid roof, with shallower slopes near the apex, and
steeper slopes near the low sides.
REIDsteel
are able to carry out the shipment and erection of propped steel portal
framed structures throughout the world, and all structures provided by REIDsteel
use only the highest quality British steel. The steel can be supplied
with hot dip galvanization when this is desired or required.
The
advantages of 2 span steel portal framed buildings are cheapness,
speed, strength and durability and the economical range is spans of 20m
to 60 m. As the span increases economy can be achieved using portal
framing with the 3 Span Propped Portal frame steel structure with spans
ranging from 30m to 105m.
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Examples
of our Work