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1. Light steel keel main parts: along the top keel, along the keel, strengthen keel, vertical keel, transverse keel should meet the design requirements.
2. Light steel skeleton accessories: Supporting cards, Cato, corner brackets, connecting pieces, fixing pieces, wall-attached keel, bead and other accessories should meet the design requirements.
3. Fastening materials: Shot screws, expansion bolts, galvanized tapping screws, wood screws, and adhesive caulking materials should meet the design requirements.
4. Fill sound insulation material: Use according to design requirements.
5. Overlay sheet: The specification and thickness of the plasterboard shall be selected by the designer or according to the drawing requirements.
1. Basic acceptance work should be completed before the construction of the light steel skeleton and gypsum cover panel partition wall. The installation of the gypsum cover panel should be completed after the completion of the roofing, ceiling and wall plastering.
2. When the design requires that the partition wall has pillows, it should be installed after the construction of the pillow belt is completed and the design level is reached.
3. According to the design and construction plans and material plans, verify all the materials of the partition wall and make it complete.
4. All materials must have material inspection reports and certificate of conformity.
1. The process flow is placed on the partition wall -> Install the door opening frame -> Install the keel along the top and the keel along the ground →
Vertical keel sub-file→→Install vertical keel→→Install horizontal keel card file→
Installation of gypsum cover panels -> Construction joint practices -> Surface construction
2. Put the line: According to the design and construction drawing, place the boundary line of the partition wall, the border line of the door and window opening, and put the top keel position edge line on the ground or the ground pillow belt already made.
3. Install the door opening frame: After the line is laid out, press the design to install the door opening frame of the partition first.
4. Install the keel along the top and the keel along the ground: Install the top keel and the ground keel according to the placed position line of the partition wall and fix it on the main body with the shot nail. The nail pitch is 600mm.
5. Vertical keel sub-file: According to the location of the opening of the partition wall release door, after the installation of the top floor keel, press the cover panel's specifications 900mm or 1200mm board width, the sub-standard size is 450mm, and the sub-filed sub-file should be avoided. The position of the first cover panel at the edge of the door frame is such that the cracked plaster cover panel is not at the hole frame.
6. Install the keel: install the vertical keel according to the shift position. Insert the keel along the top keel and the keel along the upper and lower ends of the vertical keel. After adjusting the vertical and positioning accurately, fix it with rivets; use the rivets or wood against the wall and the side keel. Screw and wall, column fixed, nail pitch 1000mm.
7. Install the horizontal snapper keel: According to the design requirements, when the height of the partition wall is more than 3m, add the horizontal clip keel and fix it with rivets or bolts.
1) Check the installation quality of the keel, whether the door opening frame meets the design and construction requirements, and whether the spacing of the keel meets the modulus of the width of the gypsum board.
2) Install one side of the gypsum plasterboard, starting from the doorway, the wall with no door opening is started from one end of the wall, the gypsum board is generally fixed with self-tapping screws, the stud distance is 200mm, the spacing in the board is 300mm, The distance between the screw and the edge of the gypsum board shall not be less than 10mm, nor more than 16mm. When the self-tapping screw is fixed, the gypsum plasterboard shall be close to the keel.
3) Install wall tubes, electric boxes and electric box equipment.
4) Install fire-proof, soundproof and moisture-proof filling materials in the wall and install and fill it with the other side of the plasterboard.
5) Install the plasterboard on the other side of the wall: The installation method is the same as the plasterboard on the first side, and the joints should be staggered with the first side panel.
6) Install double-layer gypsum board: The second floor board is to be fixed in the same way as the first floor, but the joints of the third floor should be staggered with the first floor and cannot be on the same keel as the first floor joints. on.
9. Seam practices: There are three forms of gypsum board joints, namely flat seams, concave seams, and fillet seams. Follow the procedure below.
1) Scrape caulking Putty: Before the scraping of the caulking putty, the floating soil in the joint is cleaned, and the putty is embedded in the plate with a small spatula and filled with the plate surface.
2) Paste the tie knotted tape: When the caulking putty is to be solidified, it will be used to bond the bracing material. Firstly, it will be thin on the joint.
3) Scrape the middle layer of putty: Immediately after the band is pasted, a middle layer of putty with a thickness of about 80mm and a thickness of about 1mm will be scraped on the top and the band will be buried in the putty.
4) Leveling putty: Use a large spatula to fill the wedge groove with the scraper and flatten the plate.
10. Wall decoration, plasterboard wall, according to design requirements, can do a variety of finishes.
1. During the construction of the light steel keel partition wall, the working type shall ensure that the installed items are not damaged, and the electric tubes and equipment in the wall shall not touch the misalignment and damage.
2. The light steel skeleton and gypsum plaster board shall enter the site, and shall be properly kept during storage and use so as to ensure no deformation and no pollution or damage.
3. Doors, windows, floors, walls, windowsills, etc. installed on the construction site should be protected and prevented from being damaged.
4. Walls that have been installed must not collide and keep the walls free from damage and contamination.
1. Wall shrinkage deformation and board surface cracks: The reason is that the vertical keel tightly covers the upper and lower keels and does not allow expansion and contraction. Walls over 2m in length do not control deformation joints, causing wall deformation. A 3mm gap should be left around the partition wall to reduce distortion and cracks caused by temperature and humidity.
2. The light steel skeleton connection is not firm because the local nodes do not meet the construction requirements and the local nodes should be strictly treated as specified in the drawings. The nail spacing, location, and connection method should meet the design requirements.
3. Wall covers are uneven, most of them are caused by two reasons: one is the lateral dislocation of the keel, and the other is the thickness of the gypsum board.