What are the technical requirements for the construction process of wooden keel ceiling decoration

The keel should be made of five twisted white pine. The size is 40mm*30mm; The boom should be made of 6mm wire, or 40mm*30mm white pine keel should be used as the boom, the wooden keel should be brushed with fireproof coating twice, and the contact surface with the top of the wall should be brushed with anti-corrosion coating.

The ceiling shape should meet the design requirements.

The ceiling connection should be firm, the end should not be cracked, and the spacing should be 600---1000mm. The middle of the ceiling should be arched, the height is 1 200 of the short span, and the horizontal and vertical arching should be uniform. The keel spacing is not more than 400mm.

The gypsum board should be fixed in a free state, and the long side should be paved along the direction of the secondary keel. Self-tapping screws are 10-15mm away from the seam edge, 15-17mm from the cutting edge, 150-170mm from the nail distance, gypsum board seams should be left 3-5mm, the screws are screwed into perpendicular to the board surface with a screwdriver, not driven into with a nail hammer, slightly buried with the board surface, the nail hole points to the red dan anti-rust paint twice, and the nail hole is paved with glue gypsum putty.

The surrounding should be in the same horizontal plane, its height shall not be greater than 5mm, the deviation of the seam straightness shall not be greater than 2mm, and the height difference of the seam shall be less than that.

Matters supplemented: wooden keel ceiling decoration construction technology:

Spring-line-suspension--fixed side keel-fixed through-length (main) keel-fixed horizontal keel-adjustment-cladding panel.

Specific method: pop up the elevation line of the ceiling along the wall, and the position of the top surface suspension bar and (boom) line. Two coats of fireproof paint for wooden keel brushes.

Hanging bars (rods), along the edge of the keel position drilling. When drilling the hole at the top, the hammer should be equipped with an equal ash cover to avoid splashing the eyes.

Put on the wooden plug, and fix the keel and the boom wooden base (or through wire suspension) along the edge, and the nail distance of the boom wooden base is not more than 800-1000mm.

Fixed through the length (main) keel, for larger spans of the first through length keel.

This keel (horizontal scale) position spring, fixed.

Use twine to bring the line in the horizontal and vertical center positions, adjust the flatness of the roof keel with the line, and fix it with hanging bars. The fixing screws (nails) of the suspension bar (rod) and the main keel should be screwed on the side of the main keel, and the connection between the wooden boom and the wooden base of the boom (the wood nailed to the floor slab) should be placed on the side and fixed with nails.

After the ceiling keel is adjusted, the cladding panel will be passed by the acceptance of the concealed project. When covering the panel, cover the large board first and then find the small pieces, and the plate seams should be staggered and fixed.

The wooden keel must be brushed with fireproof paint twice before use, and when used, there is no obvious bending of the main keel, and there is no obvious dislocation at the junction of the secondary keel. When using wooden boom and wooden keel, there should be no penetrating cracks, no obvious deformation and fire treatment, and the main keel spacing is 300mm, and the secondary keel spacing is 400mm. The length of the keel jumping out of the cantilever should be less than 150mm, the wooden keel skeleton should be arranged neatly and straightly, without mismatch, dislocation, and there should be a 20mm long reinforcement strip, the boom spacing is 600mm, and the contact surface between the horizontal wooden keel and the cover must be planed.

Luoyang Tianheng decoration construction technology.

1. Generally speaking, the wooden keel is about a meter per square meter, because the plywood or paper gypsum board is the size of meters * meters, and the wooden keel is generally beaten into a grid of 300 * 300.

2. Pull the line (cement rope or fish wire thread) between the two ends, and pull the line tightly to know whether it is flat. The plastic water pipe is used to level the water line, and the water line can determine whether the two ends of the ceiling are the same height.

3. Make a shelf first and then raise it to fix it.

4. Wooden wedges.

5. Flatten the water, 6 centimeters expansion screws to fix the 5*3 wooden keel to the bottom of the original ceiling (about meters apart), connect the 3*5 wooden square on the 2*3 wooden square (the length of the lower is slightly lower than the ceiling), hit the wooden keel frame, connect the shelf to the 2*3 wooden square hanging down from the ceiling, adjust the level, cut off the part of the keel frame that protrudes from the hanging wooden square, and seal the gypsum board.

In the past, the practice was to use the beams or walls at both ends of the whole cedar house to make false beams, but now most of them use 6 centimeters of expansion screws to fix the 5*3 wooden square to the cement ceiling to make small false beams, which are used to fix the hanging down small wooden squares.