Nantong Composite Material Co.,Ltd

Molded Grating

Features

Pultruded Grating

Features

FRP Profiles

Other Products

In using NANTONGRATE^TM 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 NANTONGRATE^TM 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

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.

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.

Tools of Installation:

NANTONGRATE^TM 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:

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.“M” and “L” clips are used as connector between grating and framework. “C” clip connects two pieces grating. Clips are sold as sets consisting of clip, bolt, nut and washers. They are all made from stainless steel.