The composition of the product by weight is 70% fibreglass
reinforcement and 305 thermosetting polyester resin. By
volume, each constituent is present in about equal proportions.
The configuration of the grating is as shown in the figure
below. Bearing bars are pultruded sections of 25 mm depth
width and 8 mm width.The pultruded section ensures efficient
material distribution resulting in a high strength to weight
ratio. Bearing bars have slip resistance grit bonded to
their surface to ensure slip resistance. Transverse members
are 8 mm diameter rods of the same composition as the bearing
bars. They are passed through the bearing bars and securely
boded to them with structural adhesive. FRP gratings are
supplied prepigmented, in most colour of the purchaser's
choice. Standard colour is GREY
2. LOAD TABLE - UNIFORMLY DISTRIBUTED
The table shows the maximum uniformly distributed load,
in Kg/M2 which our grating are rated to withstand, to maintain
deflections within 10 mm or 1 / 200th of the span whichever
is the lesser in accordance with BS 4592. it may be noted
that upto about 2 - 3 times these loads may be safely carried
if greater deflections are permitted.
|Span of Walkman
||Max. Uniformly distributed load Kg/M2
Maximum clear span for 500 Kg/M2 pedestrian loading 1.25
3. LOADING UNDER CONCENTRATED
The graph shown below gives an idea of the ability
of our FRP gratings to withstand concentrated loads applied
mid - span. As has been explained, a deflection of 10 mm
or 1 / 200th of the span, whichever is the lesser, is as
per B5 4592. However, as is evident from the graph, if higher
deflections are permitted (which is perfectly safe) upon
3 times or more concentrated loading may be accomplished.
4. FASTENING OF GRATINGS TO STEEL
Saddle type clip of SS is used to fasten flooring to steelworks.
Saddle clips are applied at either end of the span, between
every 6th and 7th loads bearing bar. These clips are also
used to hold adjacent panels in place next to one another,
with the end bearing bars of each panel at the standards
30 mm distances.
ADVANTAGES OF FIBRE GLASS PLASTIC
GRATINGS / FLOORING
TEMPERTAURE WITHSTANDABILITY AND CORROSION RESISTANCE
FRP gratings are made to withstand temperature of
upto 75 -n 800 C. Special resin system may be used
for higher temperature withstandability.
FRP gratings are inert most chemical environments.
Details of chemical environment and prevailing temperature
should be furnished with each enquiry.
Strength : Unit strength in tension, flexure
and compression is much higher than steel based on
||Weight : Density
is 25 % of Steel & 75 % that of Aluminum.
Unaffected by exposure to water & various corrosive
chemicals & environment.
: High inherent dielectric strength.
: Many individual components can be combined into
one large profile.
: Extremely resistance to stretching, warping or swelling
over a wide range of temperatures and physical stresses.
: It has low thermal conductivity - 1 / 500th of Aluminium
and 1 / 100th of steel.
: Available in custom built colours.
||NON - MAGNETIC, MACHINABLE, FATIGUE RESISTANT.