Fiberglass grating shall be DURADEK® Series (I-6500 1″) (I-6500 1-½”) (T-5800 2″) as manufactured by Strongwell. Grating shall be pultruded and assembled in the U.S.A. Resin shall be fire retardant (polyester) (vinyl ester) meeting the requirements of a Class 1 rating of 25 or less per ASTM E-84 and the self-extinguishing requirements of ASTM D-635. Color shall be (light gray) (yellow). Resin shall be UV inhibited and the composite shall include a veil on all exposed surfaces. Panels shall be assembled into the sizes ordered using a 3-piece pultruded cross-rod system.
The cross-rods shall consist of a center core wedge and two spacer bars that are notched at each bearing bar so that each bearing bar is both mechanically locked and chemically bonded to the web of each bearing bar. The spacer bars shall be continually bonded to the center core wedge. The cross rods shall be spaced a maximum of 8″ in the panel. The top of the panels shall be covered with a bonded epoxy medium grit anti-skid surface.
NOTE: If special options are required that are not stated in the above specification, fill in your special requirement in the appropriate section.
When ordering DURADEK®, ensure the bearing bars for installation will be oriented in the correct direction for the application. Bearing bars shall traverse from support to support. Cross-rods are not intended to be applied in the span direction. The adjacent drawing will help specify the width and length of panels.
NOTE: Width is the measurement from end to end of the cross-rods. Length is always the bearing bar length.
Panel Sizes Are Specified: Width x Length
NOTE: DURAGRID®, Strongwell’s line of custom pultruded grating, is available with a wide array of options, including: colors, resin systems, panel sizes, cross rod spacings and more.
| SERIES | BEARING BAR THICKNESS | NO. BARS PER FT. WIDTH | BEARING BAR CENTER | OPEN SPACE | OPEN AREA | APPROX. WEIGHT PER FT | CROSS-SECTIONAL AREA (PER FT. OF WIDTH) | MOMENT OF INERTIA (PER FT. OF WIDTH) | SECTION MODULUS (PER Fl OF WIDTH) |
|---|---|---|---|---|---|---|---|---|---|
| 1-6500 | 1.0" | 7 | 1.71" | 1.11" | 65% | 2.2 lb | 2.190 in2 | 0.288 in4 | 0.575 in3 |
| 1-6500 | 1.5" | 7 | 1.71" | 1.11" | 65% | 2.7 lb | 2. 752 in2 | 0.814 in4 | 1.088 in3 |
| T-5800 | 2.0" | 5 | 2.40" | 1.40" | 58% | 2.6 lb | 2. 711 in2 | 1.396 in4 | top: 1. 588 in3 bottom: 1. 24 7 in3 |
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