In using NANTONGRATETM FRP grating, the principle is similar to that of metal grating, but the flexural modulus ofelasticity of reinforced fiberglass bars is lower than that of steel. As a result, the allowable deflection has to be taken into consideration. The style of installation for NANTONGRATETM FRP grating can be classified as secure installation, standard installation and 1% deflect installation.
Secure Installation: Deflection : Span =1:180
Standard Installation: Deflection : Span =1:120
1% deflection installation: Deflection : Span =1:100
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The data
of load capacity provided by us comes from testing on the basis of 1%
deflection, it is also the heaviest load suggested by us. The data, which
is on the basis of secure installation or standard installation, can be
calculated as per the following formula and the load data on the basis
of 1% deflection.
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Deflection
of Grating = (Actual Load / Load on the basis of 1% deflection) * 1% deflection.
Unknown Load = (Known Span2 / Span2 of Unknown Load) * Load of Known Span
Deflection of Covered Grating = Deflection of Grating * High3 of Grating / (High of Grating + High of Covered plate)3
The above formula are based on experience, the result may not completely accurate.
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Tools of Installation: |
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NANTONGRATETM
FRP grating can be cut at work-site by china disc or emery disc, even
the normal saw can be used. It is suggested that to use water when cutting
to avoid dusty. Meanwhile other safety measures should be taken, such
as gloves, protect glass and gauze mask etc. should be put on. |
Support and Connect: |
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All sides
of NANTONGRATE TM FRP grating should have support, and the
support should be at least 40mm width. The clip must be used in the middle
of 900~~1800mm. Minimum four clips per side is required for full size panels.
Support has to be used under the joint of two grating products.~{!0~}M~{!1~} and
~{!0~}L~{!1~} clips are used as connector between grating and framework. ~{!0~}C~{!1~} clip
connects two pieces grating. Clips are sold as sets consisting of clip,
bolt, nut and washers. They are all made from stainless steel. |
