1. Steel grating must be protected during transportation.
2. When the steel grating is stacked on site, the lower part must be more than 300 meters away from the ground with a wooden pad, and the upper part should be covered with a color striped cloth.
3. If the steel grating needs to be hoisted during installation, it must not be pulled diagonally during hoisting, and must be tied at two points with slings to ensure parallel hoisting, and the number of hoisting blocks should not exceed 10 each time, to prevent the process of hoisting and dropping. The steel grille is deformed, affecting the installation.
4. When the steel grating is stacked on the frame platform, the bottom should be well supported to prevent the grating from being overhead and causing potential safety hazards. The stacking of each frame of platform grid plates should not exceed 2 bundles, and each bundle should not exceed 10 pieces.
5. According to the design requirements, for holes with diameter or side length ≤ 200mm, the manufacturer does not open holes in the factory. The construction unit can go to the site to cut the holes according to specific requirements. The holes must be confirmed by the general contractor. The same flat steel edging of the grating.
6. The connection between the steel grating and the finished member shall be fixed by welding. The welding points shall not be less than two places on the support members at both ends of each plate, and the distance shall not be greater than 900mm, and there shall not be less than two places on each intermediate support member. , the length of the weld shall not be less than 20mm.
7. After the steel grating is welded, the welding points need to be polished clean and painted with galvanized paint to prevent rust.
8. If the edge of the steel grating is too long or too short (unable to overlap) during the final adjustment process, report to the general contractor and the design department for opinions, and do not take measures without authorization.
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