Sleeved Purlin System is easily the
most popular of the three zed
purlin systems available from
Hi-Span. Purlins achieve a high degree of
continuity over the supports
by employing connecting sleeves over joints.
This means that design
bending moments are distributed evenly along the
length, resulting in smaller section sizes and valuable economies
In the various possible arrangements of single and
double span purlins,
the Hi-Span sleeved system offers the customer
low material costs,
practical on-site advantages during erection, and
Double Span Joint Arrangement. This system
combines single and double span purlins with their joints staggered and sleeved.
The provision of a sleeve at the unjointed connections over the penultimate
support is required.
Span Joint Arrangement. Apart from the penultimate support this
system has sleeves at alternate positions. Purlins must be continuous over a
minimum of two spans using a sleeve, in order to create an end bay situation.
(Sleeve arrangement as above, using single span purlins).
These layouts do not imply that all
sections are suitable.
Additional holes on the
standard punchlines will be made
as detailed.Non standard punchlines
can be incorporated
at no extra charge.
For Gauge Line
Details click here