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installation technology of the raised floor

AddTime:2013-05-28 09:10:33  Views:  :

I .The requirements of the laying venue
1.The indoor construction and interior decoration should be carried out.
2. The floor should be flat, clean, dry, no debris, no dust.
3. The under-floor cables, appliances, air pipelines and air-conditioning system should be installed before the floor construction.
4. Heavy equipment’s base should be fixed; the equipment installed in the base; the base height and the finished floor surface should be a same height.
5. The construction site has 220V/50HZ power and water.
Ⅱ The floor installation tools
1. Professional Cutting Saw
2. Laser level detector
3. Bubble spirit level, tape, ink line
4. lifter, wrench, Phillips screwdriver
5. Vacuum cleaner, broom, mop
Ⅲ The installation steps
The ground processing and cleaning -> Positioning and paying off -> affix copper strips -> install and fix the adjustable pedestal and stringer -> laying the raised floor -> anti-static protective ground -> clean-up
According to the raised floor’s modulus, we can choose the laying direction, the situations as following:
A: If the indoor room don’t have control cabinets and other equipment, the flat size is consistent with raised floor modulus, it should lay from the inside to outside.
B: If the indoor size does not meet the raised floor modulus, it should find out the room centerline. Look at the difference of both sides. If the difference is not obvious, it should be outside – inside laying. If the difference is larger, it should be symmetrical on the grid, from the inside to outside.
C: If the indoor room has control cabinet and other equipment to stay hole, the direction and sequence of installation should be considered.
Installation steps:
1. Carefully check the surface flatness and wall verticality. If it was not complying with construction requirements, present to the first party.
2. Pull the horizontal line, and draw the ink line and show the install height on the wall to ensure the installed floor in the same horizontal plane. Measure the room’s length and width, and select the appropriate reference position in order to reduce the floor cutting. Draw the grid lines on the ground for pedestal installation.
3. Adjust the pedestal to the same required height and place it at cross of ground grid lines.
4. Fix the stringer to the pedestal with screws, and rectify the stringer on the same horizontal plane and mutually verticality by spirit level and square.
5. Put the raised floor on the placed stringer by lifter.
6. If the surplus is smaller than the length of the floor, pieced together by cutting floor.
7. In laying the floor, make level by block with a leveling bubble spirit level and adjust the floor height by pedestal.
8. If the machine room has heavy equipment, the more pedestals should be installed under the equipment base to prevent deformation of the floor.
9. When the raised floor needs a cut or open a hole, it should be at the opening corner by electric drill to prevent fracture of the cover.

Ⅳ The acceptance criteria of floor laying
1. It should be clean and no dust under the raised floor and suface of raised floor.
2. No scratches on floor surface, no coating peeling, no edges damaged.
3. The whole finished floor should be stable. There is no shaking feeling and sound when people walk on it.
4. Floor side shall be guaranteed at a straight line, and the displacement of adjacent floor is less than 1mm.
5. The height difference of adjacent floor is less than 1mm.
Ⅴ Requirements on maintenance and use
1. The use environment: the temperature and humidity of laying raised floor room should be 15.C-35.C and 45% -75% RH.
2. Maintenance requirements:
(1) Prohibit to operate by sharp instruments directly on the floor surface, in order to prevent the damage of anti-static properties and appearance of the floor surface.
(2) Prohibit the worker jumping from high place to raised floor during the using process and prohibit the worker from crushing the floor when they carry equipment barbaric operation.
(3) When move the equipment on the raised floor, it should be uplifted to move, and can’t be moved dircetly on raised floor.
(4) If the machine room has heavy equipment, the equipment should be at the ground base; not directly on the raised floor,which will cause deformation by long-term weight-bearing.
(5) When maintain the equipment under the raised floor, it should lift the raised floor by lifter, can’t dismantle by sharp tool.
(6) Clean the raised floor by vacuum cleaner or mop, don’t splash the liquid on the floor.
(7) The raised floor surface can put anti-static wax periodically to guarantee the long-term use.

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