Construction process and acceptance standard of li

2022-07-22
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The construction technology, process and acceptance standard of light partition wall in Xi'an decoration classroom. The indoor partition wall mainly has three forms: light steel keel, wood keel and brick masonry. Due to its heavy weight, wet operation and long time, brick walls are generally not suitable for indoor use except when they are used in the reconstruction of toilets and kitchens. (1) Wood keel partition wall wood keel partition wall is a wall with red and white pine as the skeleton and gypsum board or wood fiber board and plywood as the panel. Its processing speed is fast and labor

construction technology, process and acceptance standard of light partition wall in Xi'an decoration classroom

indoor partition wall mainly includes light steel keel, wood keel and brick. Due to its heavy weight, wet operation and long time, brick walls are generally not suitable for indoor use except when they are used in the reconstruction of toilets and kitchens

(I). Wood keel partition wall

wood keel partition wall is a wall with red and white pine as the skeleton and gypsum board or wood fiber board and plywood as the panel. It has fast processing speed, low labor intensity, light weight, good sound insulation effect and is widely used

1. Construction procedure of wooden keel partition wall

the construction procedure of wooden keel skeleton is: clean the base floor → snap the line and find the rules → make the floor sleeper belt (also known as the skirting base) with bricks and cement mortar on the ground → snap the line, return the line to the ceiling and the main structure wall → erect the frame wall reinforcement → install the wooden ridge along the ground and top → erect the partition and keel → nail the horizontal keel → seal the cover panel, reserve the socket position and set up reinforcing skids → cover panel treatment

2. Construction specification of wooden keel partition wall

the specification of wooden dragon skeleton should be 40mm × 60 mm red and white pine. The spacing between vertical keels should consider the size of the cover plate, generally between 450-600 mm. If there is a door, a keel should be erected on both sides. The horizontal keel should be tenoned with the vertical keel. The upper and lower sides of the window and the upper side of the door should be added with a horizontal keel

when installing the wooden ridge along the ground and top, the two ends of the wooden ridge should be extended into the brick wall at least 120 mm to ensure that the partition wall is firmly connected with the original structural wall

the installation of partition wall cover panel can refer to the installation method of light steel keel cover panel

3. Acceptance of wooden keel partition wall

the inspection standard of wooden keel partition wall is: the partition size is correct and the material specification is consistent; The wall surface is straight, square and smooth, the corner is square, and the junction is tight. The keel along the ground, along the top wood and the frame wall reinforcement should be firm and straight after their handover. Check the partition wall and use a 2m ruler to detect. The surface flatness error is less than 2mm, the vertical error of the facade is less than 3mm, and the height difference of the joint is less than 0.5mm

(II). Light steel keel partition wall

light steel keel partition wall is a permanent wall, which is composed of light steel keel as the skeleton and paper gypsum board as the base surface material. The face can be decorated with latex paint, wallpaper, wood and other materials. In the process of home decoration, this kind of wall material is often used in the adjustment and design of space layout, such as the division of large indoor space, the change and displacement of non bearing wall, Cover of stairs in duplex residential buildings, etc

the light steel keel partition wall has the advantages of light weight, safety and reliability, strong impact resistance, non-toxic and non combustible. It occupies small indoor space and is convenient and fast to construct. It is superior to other permanent wall materials. At the same time, it also has good performance of sound insulation, heat insulation, corrosion prevention and moth prevention. It can be used in any part of the family room, including the partition treatment of kitchen and bathroom. In order to meet the requirements of special environment, it can also be used for high-level sound insulation and heat insulation treatment. Therefore, light steel keel partition wall is an ideal wall material

1. Types of light steel keel

the commonly used light steel keel has three specifications: Q50, Q75 and Q100, which are respectively applicable to partition walls of different heights. The height of family houses is generally within 3 meters, and the light steel keel with specification of Q50 can meet the needs. When assembling the steel keel framework, it needs keels and corresponding accessories for different parts to assemble the partition wall

2. Installation of light steel keel frame

first, according to the design drawings, snap the position line of the wall on the indoor ground, and lead the line to the side wall and ceiling. The snap line on the ground should pop up the double line, that is, the projection of the two vertical surfaces of the wall on the ground should be popped up

next, wall mats should be made to ensure that the skeleton is consistent with the ground. The specific method is as follows: first clean the contact part of the ground, brush one coat of yj302 interface treatment agent, and then hit the plain concrete wall pad. The upper surface of the wall pad should be flat, and both sides should be vertical

the keel along the ground and top can be fixed by shooting nails or drilling holes and fixed with expansion bolts. The spacing is generally 900 mm. The position of shooting nails should avoid the hidden pipes laid in the original base course

the installation spacing of the vertical keel should be selected according to the provisions of the limited height. When the concealed joint is used, the keel spacing should be increased by 6 mm. If the exposed joint is used, the keel spacing should be determined according to the width of the exposed joint. For the wall surface where items need to be hung, the keel spacing should be shortened, generally 300 mm. The vertical keel should be arranged from one end of the wall. When the distance between the last keel and the wall is greater than the specified keel spacing, a keel must be added. The upper and lower ends of the vertical keel should be fixed with round nails along the ground and top keels. When the keel needs to be cut on site, it should start from the upper end of the keel. The punching position cannot be reversed, and ensure that the keel punching is on the same horizontal line

when installing the door column, it should be combined according to the form of the door column determined by the design. While installing the column, the door and the column should be in place and fixed together. The installation method of the window is the same as that of the door

when the height of the partition wall exceeds the length of the gypsum board or there is a window on the wall, a horizontal keel should be set, which can be connected with the vertical keel along the ground, along the top keel, or the vertical keel can be connected with the vertical keel by using Cato and angle bracket

when distribution boards, washboards, water tanks and other facilities need to be set on the partition wall, the hangers of various wall attached equipment should be firmly connected with the Dragon skeleton in advance when installing the skeleton according to the design requirements

3. Installation of paper faced gypsum board

after the light steel keel frame is installed and checked to be correct, the gypsum board can be installed. The gypsum board should be arranged vertically, and the gypsum boards on both sides of the keel should be staggered and fixed with self tapping screws. The sequence is to fix from the middle of the board to both sides. The distance from the fixed position to the board edge is 10-16 mm, at least 15 mm from the board edge of the cutting edge, and the distance between the screws on the board edge is 250 mm, The space between the screws in the middle of the edge is 300 mm, and the nut is slightly embedded in the plate, but the paper surface must not be damaged. The gypsum board at the lower end should not be in direct contact with the ground. A gap of 10-15 mm should be left and sealed with sealing paste

after the gypsum board is installed, clean the floating soil in the joint, and use the putty knife to embed the putty into the joint and level with the board surface. After the putty in the joint solidifies, scrape 1mm putty and extrude it from the mesh hole of the joint belt. Then use a large putty knife to apply putty on the whole decorative surface, embed the joint belt in the putty, and level all the edges of the gypsum board and the uneven parts of the paper surface, and wait for the surface decoration treatment during the fine decoration

4. Installation of special-shaped partition wall with light steel keel

a great advantage of light steel keel partition wall is that it is easy to process, manufacture and install special-shaped walls. In home decoration, in order to make full use of space or increase the artistic effect of wall decoration, special-shaped walls are sometimes required. Taking the installation of circular arc wall as an example, the installation method of special-shaped wall is explained

when installing the arc-shaped wall, first draw the arc-shaped reference line on the ground and ceiling respectively. This reference line should be double line, and the drawing method is the same as that of general light steel keel partition wall installation. Cut the gap along the ground and top keel, bend it into the required arc, make the arc edge close to the arc baseline, fix it on the ground and ceiling with shooting nails, and firmly connect the vertical keel with the ground and top keel with self tapping screws or pop rivets. The spacing of vertical keels is determined according to the calculation of arc length. The principle is that each arc-shaped gypsum board should be stressed on three vertical keels

when installing the paper faced gypsum board, the back of the gypsum board should be cut at an equal distance with an opening 2-3mm wide and 2/5 thick. The distance between the cuts is determined by the arc radius. The smaller the radius is, the smaller the distance between the cuts is. During installation, place the cut surface against the keel, gradually bend the gypsum board from one side to make it close to the arc surface of the keel, and then fix it with self tapping screws. Other installation steps are the same as that of general light steel keel paper faced gypsum board wall

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