The open ceiling is composed of units with specific shapes, and the decorative surface of the ceiling is open, such as wood grille ceiling and aluminum grille ceiling. ?

Construction technology:

1. Use a horizontal tube to copy the horizontal line, check the flatness twice, and use chalk line to pop up the baseline. If the original ceiling is not horizontal, the ceiling should be made horizontally or along the original ceiling, which will be determined by the customer after consulting the designer.

2, familiar with the drawings, determine the size, construction disclosure, curved top surface modeling should be set out on the ground first, and the top can be carried out only after it is confirmed. And make sure the lines are smooth.

3. The main reinforcement of the suspended ceiling shall be not less than 30×50 wooden keel, the spacing shall be 800- 1000, 100×8 steel bar shall be expanded and fixed, and the dosage shall be 1㎡. Reinforcement expansion should be carried out in the gap of precast slab as far as possible. Don't use wire as a suspender.

4, ceiling keel is not less than 25 x 35 wooden keel, scrap material, shall not be used for ceiling grille, can only be used as steel hanger. The dragon skeleton can only be used if it is pushed out of the bottom.

5, wooden keel grille should pay attention to the position of lamps and lanterns, downlight opening can not have wooden keel, ceiling and ceiling lamp should be reinforced separately, the main lamp of the sitting room should be fixed by steel expansion.

6. Before using gypsum board, it must be divided into blocks with elastic lines, and 3㎜ seam should be left when sealing the board, and it should be fixed with special screws. It should be sunk into gypsum board by 0.5- 1㎜, and the nail distance should be 150- 170㎜. Fixation should be from the middle of the plate to the four sides, and simultaneous operation is not allowed.

7, before sealing board must play line block, to ensure that the nail on the wooden keel, nail spacing is 80- 150, nail length is 25-35. Paint the nail holes with antirust paint. If latex paint is used, it must be roll coated with alkyd varnish to prevent the laminate from discoloring.

8, when using aluminum gusset plate, paint gusset plate, should understand the specifications of gusset plate, combined with the size of the site reasonable blanking to buy back. The ceiling of the bathroom must also be steel expansion, painted with fire retardant paint, and the ceiling of the kitchen and bathroom should be as high as possible.

9, sealing plate, pay attention to drag lamp wire out of the top surface, according to the construction drawing on the cover panel to determine the position of the downlight, pull out the thread.

10, wooden keel caulking plastic gusset plate or aluminum gusset plate and painted gusset plate, attention should be paid to the plate surface is not damaged, gusset plate convergent line Yin-Yang corner line and Yin-Yang corner line seam should be tight, straight nails can be used to connect gusset plate and line from the top, while ensuring that the top is watertight.

1 1, and the total height of dark zone is generally 120-200. All dark belts should use double-layer silver rain brand neon tubes, the front baffle of dark belts should use nine-centimeter board or double-layer five-centimeter board or woodwork board, and the rear baffle should use five-layer board.

Extended data:

Technical requirements:

1. Before installing the keel, handover inspection shall be carried out on the clear height of the room, the elevation of the hole, the elevation of ceiling pipes, equipment and their supports according to the design requirements.

2. The wooden suspenders, wooden keels and wooden decorative boards of the suspended ceiling project must be treated with fire prevention, and comply with the provisions of relevant design fire protection codes.

3. The embedded parts, steel suspenders and steel suspenders in the suspended ceiling project should be rusted.

4. Before installing the panel, the debugging and acceptance of pipes and equipment in the ceiling should be completed.

5. The boom spacing is not more than 1200mm, and the boom is not more than 300mm away from the end of the main keel. When it is greater than 300mm, the suspender should be added. When the length of the boom is greater than 1.5m, the bracing shall be set. When the boom meets the equipment, the boom should be adjusted and added.

6, heavy lamps, fans and other heavy equipment are strictly prohibited to be installed on the keel of the ceiling project.

7. The bottom of the ceiling should be flush with the bottom of the light box and Yuba.

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