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Design requirements and surface treatment of steel grid

The steel plate manufacturing tolerances

The design requirements of the steel grid plate

1. According to the conditions of use (bearing value and installation span), the model of steel grid plate is selected from the table of "safety negative load and span and deflection".

2. The design requirements of platform walkway:

When the steel grid platform is subjected to the design load, the deflection of the platform can not be greater than 1/00 of the span, and the maximum of the platform walkway shall not exceed 10mm. All the platforms shall meet the following requirements, in addition to meeting the above requirements:

A. When the design load value is X1.5, the steel lattice plate will not produce permanent deformation

B. When the design load value is X3.0, the steel lattice plate will not break

C. The design requirements under special load conditions shall be agreed upon by both parties

3. Design requirements for stair treads:

Under the condition of design load, the deflection deformation of the point at any step can not be greater than 1/200 of the span, the maximum can not exceed 6mm, in addition to meet the above requirements, all steps should also meet the following requirements:

A. When the design load value is X1.5, the steel lattice plate will not produce permanent deformation

B. When the design load value is X3.0, the steel lattice plate will not break

4. Layout design:

A. According to the nominal width of the table to give priority to the width of the original plate, less than the original plate width, the number of flat with the corresponding nominal width value

B. The supporting length of the steel grid plate at both ends of the flat plate on the support frame shall not be less than 25mm

C. Plate gap: 5-10mm between steel grid plate, steel grid and adjacent structure between 10mm

D. The minimum width of the steel plate (300mm) on the platform

The surface treatment of steel grid plate

1. Hot dip galvanizing: hot dip galvanizing in general after the completion of the wrapping process, when the load is not less than the thickness of flat steel 5mm, the average zinc coating weight of zinc coating is not less than 610 g / square meter. When the thickness of the flat steel is less than 5mm, the average weight of zinc coating is not less than 460 g / m2 after galvanizing, and the quality and requirements after galvanizing shall comply with the GB/T13912 regulations.

2. Painting: painting, brushing or dipping according to user's special requirements.

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Anping County Bingrong Wire Mesh Products Co.,LTD
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Tel:+86-0318-7666726
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