Construction technology: spring line leveling → installation of main girder → installation of joists.

Play line leveling first, according to the indoor metope +50cm horizontal line, use a ruler to measure the ceiling design elevation, play chalk line around the metope as the horizontal line around the ceiling, embed φ 10 bolt hanger in the reinforced concrete ceiling, and tighten it through the main girder below. The embedded steel hanger shall be consistent with the position of the main girder, and the spacing between the main girders shall be 1.0m, 6× 65438. Then install joists, that is, small keels. In order to make the ceiling surface smooth, the joists must be planed flat. First of all, joists around joists should use 4×6cm square timber with a spacing of 40cm. Nail joists first, and then block them with 4×6cm square timber with a spacing of 40cm. Nail the joist with 3 "nails, and nail the main girder and long joist with suspenders. The boom is made of 5×5cm dry wood. The two ends of the boom are fixed with two nails, staggered one by one, and shall not be nailed on the same side. The exposed iron parts in the ceiling should be painted with antirust paint, and the ceiling skeleton can be nailed only after passing the inspection.

Light steel keel plasterboard hung ceiling

Lightweight steel keel plasterboard ceiling is adopted, and the construction points are as follows:

A, all kinds of pipes, pipelines have been installed and debugged, keel levelness, ceiling spacing, node fixation, bulging design, etc.

Second, first install the main keel, and pull the energy line to check whether it is correct, and then level it while installing the plate, so as to meet the flatness of the board surface.

Third, the use of special machines and tools and the selection of supporting materials can ensure that the size of the processed plate meets the standard, reduce the original error and assembly error, and ensure the smoothness of the splicing place.

Four, according to the provisions, play the position line of the boom at the bottom of the floor, and determine the boom spacing according to the size of the cover panel.

5. Considering the stability, the distance between the keel and the wall should be less than100 mm. ..

Six, when using gypsum board, the distance between the tapping screw and the edge or end of the board should not be less than 10mm, nor should it be greater than 16mm, because it is limited by the cross section of the keel. The screw spacing in the middle of the plate should not be greater than 200mm. When fixing, it is required that the nail head should be embedded in the gypsum board about 0.5 ~ 1 mm, the nail hole should be leveled with putty, and the color should be painted with paste putty of the same color as the gypsum board. The fixing screws can be cross countersunk self-tapping screws (5×25, 5×35).

Seven, laying large plates, should make the long side of the plate perpendicular to the keel direction, to facilitate the arrangement of screws.

FC plate crane with light steel keel

First, the steel hanger adopts the method of installing steel bars on precast slabs. The diameter and spacing of suspenders should meet the design requirements.

Second, the steel hanger should be rustproof.

Thirdly, it is the key to deal with the joints of TK board. Effective measures should be taken to prevent plate cracks.

Zaojing hung ceiling

First of all, the function of caisson ceiling

In home decoration, wooden keel is generally used as the skeleton, gypsum board or wood is used as the panel, and paint or wallpaper is used as the finishing decoration of caisson ceiling. This kind of suspended ceiling can overcome the contradiction between low room height and top decoration, facilitate on-site construction, improve decoration grade, reduce project cost and achieve the purpose of top decoration, so it is widely used.

Second, the construction points

1. Installation requirements of wooden keel

① Material: wood is required to be free from quality defects such as splitting, corrosion, moth-eaten, frogs and dead knots; The specification is that the section is 30 ~ 40mm long and 40 ~ 50mm wide, and the water content is lower than 10%.

(2) Design: caisson ceiling is adopted. If the height difference is greater than 300mm, it should be handled step by step. The keel structure must be firm, and the spacing between large keels shall not be greater than 500mm. The keel must be fixed firmly, and the keel frame must have fixed parts at the top and wall.

③ Construction: The horizontal deviation of ceiling elevation is not more than 5 mm.. The bottom surface of wooden keel should be planed and leveled, and the cross section thickness should be consistent, and flame retardant treatment should be carried out.

2. Wooden keel installation specification: firstly, the elevation line, modeling position line, lifting point layout line and lamp installation position line should be popped up. There are two ways to fix the lifting point at the top of the dragon skeleton: one is to fix the angle iron or flat iron directly at the top with nails with a diameter of more than 5 mm, and the other is to drill holes at the top and fix the iron sheet or wood square with expansion bolts as the lifting point. Ensure that the lifting point is firm and safe. After the installation of the dragon skeleton, quality inspection and acceptance should be carried out before installing the decorative board.

3. Installation of decorative plate

There are two main types of ceiling decorative boards: gypsum board and wood board, all of which require smooth surface, no unevenness, no fracture and neat edges and corners.

There are two main installation methods of decorative panels: round nail fixing method and wood screw fixing method, in which round nail fixing method is mainly used for the installation of wood decorative panels, and the construction speed is fast; Screw fixation method is mainly used for plasterboard veneer to improve the nail holding ability of the board.

The installation of decorative panels should be completely consistent with the wall, with decorative corner lines, which can leave gaps, and the joints between decorative panels should be tight.

When installing the ceiling, the position of the lamp mouth should be reserved when installing the decorative board. After the panel is installed, the finishing work needs to be completed. Commonly used materials are latex paint and wallpaper, and the construction method is the same as that of wall construction.

Wooden ceiling

A, wooden ceiling keel according to the technological process

1. Pop up the ceiling elevation line and draw the lifting point.

2. Nail the wooden keel frame on the ground according to the ceiling area and design shape.

3. Drill holes at the lifting point with an electric hammer, and fix the small wooden square (or batten) at the bottom of the floor with expansion bolts. If cork is used, the wood must be thoroughly dried to prevent the cork from loosening after drying.

4. Install the derrick. If the wooden keel is used as the suspender, one end of the wooden keel can be fixed on the small square wood (or cork) at the bottom of the floor, and the other end can be fixed on the horizontal wooden keel.

5. Install the wooden keel, level it according to the horizontal elevation line, and then fix it firmly with the derrick.

6. Calibration and cleaning. After the horizontal wooden keel is fixed, it should be leveled again. If there are any mistakes, they should be corrected in time. The part of the hanging standard that shows the horizontal wooden keel should be sawed off and cleaned.

7. Installation requirements of wooden ceiling keel: a. Wooden keel should be 3×2.5 or 3×2, and there must be a hanger every 60-80 cm, and the plane skeleton (grid) should not be greater than 45 cm. B the joint surface of keel and plywood must be planed to ensure close adhesion. C. For the glass luminous ceiling, attention should be paid to the negative weight of the keel, the suspender should be encrypted, and the painted glass with a thickness of 3/mm should be used to make the lighting reasonable and even.

Second, the solid wood floor construction technology

1. Built-in parts, with damp-proof layer at the bottom.

2, play line, must use a level to correct the horizontal line, the first pop-up horizontal chalk line.

3, laying wooden keel, leveling with plywood pad, and fixed with nails, wooden keel must stay leveling.

4, do the surface plate, flat-fell seam shall not exceed 0.5 m/m/m. ..

5. Planing, planing and painting.

6. Construction requirements: a. Before the construction of solid wood floor, the wet operation of ceiling and wall should be completed, and the drying degree of painting should reach more than 80%. B. The base course shall be pretreated strictly, all sundries shall be cleaned up, and the bottom course shall be paved with moisture-proof layer. C the ground keel is 3×5 cm (wood square) with a spacing of 25-32cm, and the surface is planed. Select materials before assembling the floor. If the color difference is too large, it should be removed. If the color difference is slightly larger, it should be laid in an inconspicuous place.

Three, curtain box and door window cover construction technology and requirements

1, curtain box width 16-20cm, distance from wall 16cm, maximum distance of double-track curtain 20cm.

2. Pay attention to the corner of the original three parallel lines when making curtain boxes and window covers.

3. There are two kinds of door and window covers: wide line pressing type and narrow diagonal flat-fell seam type. The maximum width of wide type shall not exceed 12cm. If two doors and window covers cross and are adjacent to each other, the width of the window cover can be reduced and a blank space must be left between them.

4. Construction technology and requirements of the door: a. The original door is double-wrapped, and the material selection should have patterns and colors. The panel should be glued flat, the edge of the wooden door should be spliced with the cutting panel at a 45-degree angle, and the gap between the door and the floor should not be greater than 2m/m ... B. The glass lattice door should be divided into reasonable and beautiful frames. After the frame is made, it should be flattened for three days and dried and shaped. Generally, glass lattice doors are sliding doors. In addition to the upper slide rail, pulleys must be installed below.

5. Wooden dado and dado construction technology and requirements: a. Basic treatment. The back of the bathroom and washbasin is made of wallboard, and the wall must be moisturized (generally, a layer of water tar or hydrophobic slurry should be brushed first). B. play the line. (1) elevation line, starting from the horizontal datum line, measure the decorative punctuation of dado on the wall and pop up the elevation line. ⑵ Measure and determine the center line first, and determine the position of wall modeling. Install the density board. D. Decorate the panel. E. According to the construction requirements, there should be no glue on the surface of the veneer to avoid polluting the surface. The base of household appliances should be embedded firmly, and the surface should be flush with the seat surface of the cover panel.

6. Construction technology and requirements of soft bag retaining wall: A. Partition size: The purpose of soft color is exquisite and gorgeous, so the partition should not be too large. Pay attention to its slender shape, so that the house with low floors will have a high and spacious feeling. B. pay attention to material selection. Don't use horizontal stripes for the fabric, it's better to use the fabric with irregular patterns, and the foam core is 2.5-3cm. If it is too thin, it will have no stereoscopic effect; if it is too thick, it will be difficult to make. C. When pressing the edge with the internal corner line, it must be pressed on the foam, not on the door material. The edge of the foam should be cut straight, not crooked, so as to press out the right angle of the edge line and show the aesthetic feeling.

7, partition and decorative partition production process and requirements: woodworking in the process of making partitions should be divided into three stages. The completion of each stage must be checked by the designer and builder before the next stage of work. A. During the frame outline structure production stage, pay attention to check whether the scale and image are correct. B. In the vertical production stage of the mask, pay attention to check the color and pattern of the board surface and the angle of the board surface. C in the line decoration stage, pay attention to check that the lines used are reasonable and beautiful, and don't use them indiscriminately to cover up technical defects. D. Use as few nails as possible and use more glue.

8. Furniture manufacturing technology and requirements: Reasonable and beautiful furniture combination plays a decisive role in home decoration. Pay attention to the following points in the manufacturing process: a. It must be horizontal and vertical, and cannot be bent. B. The visible bread corner must be a 45-degree diagonal. C, the choice of panel is particularly important, there can be no color difference or random lines. D panel is not allowed to be glued with nails, but with a nail-free gluing process. After the cupboard door is put away, it will take three days to flatten it before it can be used. E. The feet of tables and cabinets must have tenons, and drawers should follow the track.