U - type light steel keel board gypsum board ceiling practices
First, the construction practices and materials
1, the construction practices
There are two structures of the ceiling keel, medium and small keel close to the large keel, bottom hanging (that is not in the same horizontal plane) said double structure; large and medium keel at the same level, or no large keel directly linked to the keel Single layer structure. The latter only for light ceiling.
2, materials
(1) plaster board. Gypsum plaster board is the construction of gypsum (CaSO4.1 / 2H2O) as the main raw material, mixed with appropriate special features of the fiber and admixture of core material, and with a special combination of solid tissue sheet.
Gypsum board characteristics, varieties, specifications, see "light steel keel gypsum plaque wall." It must be emphasized that the thickness of the ceiling plaster board is 9 mm.
(2) caulking putty and seam band. Light steel keel gypsum board ceiling used caulking putty and seam with the "light steel keel gypsum board partition."
(3) light steel keel. Ceiling light steel keel by the carrying capacity of sub-human keel and not on the human keel. By the use of points have a large keel, the keel, keel. According to the series of UC38, UC50, UC60 three series, the three series followed by light, medium and heavy keel.
Light series can not afford the Master load.
Medium-sized series can withstand occasional Master load, can be laid on its simple inspection road.
Heavy series can withstand the Master 80KG concentrated load on the laying of permanent inspection on the road, there are special requirements of the road, such as the frequency of frequent or heavy load, you need to hang on the roof of the horse itself, with the ceiling system separate.
Second, the installation process
1, operating conditions
Light steel keel gypsum board ceiling installation of the same operating conditions "wooden ceiling."
2, material preparation
According to the design requirements, select the appropriate U-shaped keel series, and according to the actual plane size of the main pieces and their accessories ready keel.
Cover panel of the species, specifications should meet the design requirements.
3, machine preparation
Light steel keel gypsum board installation and construction of equipment used with the "light steel keel gypsum board partition."
4, operating procedures
Plumb line → fixed boom → installation of the big keel → according to the elevation line to adjust the big keel → big keel at the bottom of the elastic line (cable) → fixed in the small keel → install gypsum plaster board → → plaster board finishes → clean.
5, construction points
(1) According to the design of the ceiling height on the wall line, the level of tolerance ± 5 mm.
(2) boom installation
1) Selection of boom. Generally speaking, light steel keel ceiling suspension can be selected according to the standard map, light steel ceiling diameter 6, medium and heavy selection diameter 8. If the design has special requirements, the load is large, you need to determine the structural design and checking.
2) According to the design or standard drawing to determine the hanging point spacing. Generally not on the ceiling space 1200 ~ 1500 mm, Master ceiling spacing of 900 ~ 1200 mm.
3) fixed ceiling. For the cast-in-situ concrete roof can be embedded in the construction of embedded boom or embedded iron, so that boom and iron welding. In the old buildings or concrete round hole under the plate can be used nail gun hanging point iron (small angle iron) fixed, need to add shim nail. The nail must be secure (if the tail of the nail with a hole, as the case may be iron and the use of iron nails to fix the hole). Or according to the hanging point expansion bolt position.
4) When the boom is installed, the upper end should be welded with the embedded parts, the lower end should be set thread, with a good nut, the end thread exposed not less than 3MM.
(3) keel installation
1) large keel welding method can be welded with the boom. But it is best to use boom and boom connection, tighten the screw firmly. Large keel connection can be connected with a long. Installed after leveling, consider the height of the crown from the ceiling, not less than the room short-span 1/200.
2) in the keel with hanging pieces and large keel fixed. In the keel spacing according to sheet size. When the spacing is greater than 800 mm, the keel should be increased between the small keel, which should be parallel with the keel, and hanging with large keel fixed, the lower surface and the keel at the same level.
3) In the seam joints should be installed in the transverse support, the keel, cross-keel with a flat connection with the small keel fixed.
4) The final installation of profiled roof or curtain box shaped keel or teach aluminum keel.
(4) plaster board and other sheet fixed
1) fixed plaster board can be used directly with self-tapping screw tapping screw gun and keel fixed. Nail head should be embedded in the board surface 0.5 ~ 1 mm. Nail head painted anti-rust paint with putty after leveling, self-tapping screws with 5 * 25 or 5 * 35 Phillips head countersunk head tapping screws.
Gypsum board joints, if it is close, the gypsum board should be left 3 mm slit, putty putty, paste the glass fiber seams. And then putty smooth scraping. If you need to stay slit, usually 10 mm, the slit within the design requirements can brush a paste, can also be concave aluminum pressure seam.
2) Fixed decorative plaster board and other materials, should first board in place, with electric drill (drill diameter slightly smaller than the self-tapping screw diameter) will be drilled through the board and keel, with self-tapping screws. Tapping screw spacing of not more than 200 mm.
(5) light steel keel rounded ceiling construction
1) When the arc surface is small, the arc surface of the smaller ceiling, can be used 26 # galvanized iron bent into the required arc, fixed on the roof of the already covered gypsum board, the brush on the white paint finishes. 0.8 mm aluminum can also be used to do surface finishes.
2) When the arc surface is large, large circular surface of the ceiling, the application of light steel keel to do skeleton, with a plaster board or plywood surface. There are two ways to make a skeleton with a lightweight steel keel.
First, the main keel and additional large keel welded into the skeleton (skeleton production should be determined by calculation or amplification), and then cut the small keel iron mouth, bent into the required curvature. Installation, the first installation of the keel frame, followed by the installation of vertical keel, vertical keel installation should be pulled through the line, so that the straight side and with the arc model side edge inspection to ensure that the arc round. Longitudinal keel with aluminum wire screwed on the additional large keel, curved keel with core pulling aluminum rivets and longitudinal keel connection, arc keel installation also need to model at any time check to round. Gypsum plaster board with the installation of the arc wall.
Second, first enlarge the sample, do arc-shaped table mode, and then "U" -shaped keel cut out the gap, and according to the table mold bending required curvature. The two curved keel on the deduction together on the table die on the Taiwan die with an application of self-tapping screws or core pulling rivets will be two "U" -shaped keel connected into a whole, so made the curved ceiling The main keel. And then along this arc keel span direction equidistant fixed two vertical keel clamped arc keel, and the vertical vertical keel for hanging bars, the entire piece of curved keel fixed along the top keel. Adjacent arc keel spacing is generally 60 mm. Arc keel fixed after the adjacent arc keel between the level of the keel, every other file set "scissors." All frames are connected by self-tapping screws or core pulling rivets.
Third, the quality of assessment
(1) to ensure that the project. The quality inspection and assurance items of wood frame or U-shaped light steel framework cover panel are shown in Table 7-20
Table 7-20 U-type light steel or wood frame cover panel quality assurance project
Content inspection methods
1. Light steel or wood frame and cover panels of the material variety, specifications, and drop-top shape of the basic structure of the fixed method in line with the design requirements of observation, the amount of inspection. Check the keel, cover panel product certificate
2. Light steel frame or wooden skeleton of the keel installation location Shape correct size, solid connection, no loosening, deformation, hanging rods and connectors should be consistent with the requirements of the product portfolio Observation and measurement
3. Cover panel and keel connection firmly. For the production of all kinds of modeling ceiling, plaster board joints should be designed according to the slit treatment, in order to prevent deformation of the sheet moisture, the plate surface should be pre-coated with a layer of waterproof coating observation and measurement
(2) the basic project. The basic items of quality inspection of wood frame U-shaped light steel skeleton cover panel are shown in Table 7-21
Table 7-21 Basic project quality of U-shaped light-weight steel or wood frame cover panel
Content inspection methods
1. Cover panel should be fixed in accordance with the requirements of design and assembly atlas, and keel connection closely, the surface smooth, no pollution, fracture, missing edge off angle, hammer India and other defects, cover panels should be designed before, Uniform, seamless, seams uniform, beautiful, eyes fixed with the same color of putty eyes fill up 2. Gypsum board fixed in the free state should be fixed, not easy to bend, convex drum and other defects. Self-tapping screw head slightly buried in the board, not to make paper damage, nail-eye for rust treatment and smoothing with putty 3. Cover panel should be flat, tight interface with no warping Adhesive, the adhesive type should be used Cover the choice of varieties of panels. Bonded cover panels shall not have delamination; plywood shall not have a plane through the Department, the vertical and horizontal seams straight, the width of the same. Straight flat, tight interface without warping. Observation and pull-line scale inspection
Fourth, the material consumption
(1) U-shaped light steel ceiling slightly solidification installation works.
1) hanging pieces of processing, installation.
2) positioning, bomb line, shoot nails
3) selection of materials, cutting, positioning rod control height, formation, installation keel and cross brace fittings, holes and other reserved.
4) temporary reinforcement, adjustment, correction.
5) light boxes, tuyere edge, keel settings.
6) placeholder, overall adjustment.
7) Install the ceiling cover.
1, the construction practices
There are two structures of the ceiling keel, medium and small keel close to the large keel, bottom hanging (that is not in the same horizontal plane) said double structure; large and medium keel at the same level, or no large keel directly linked to the keel Single layer structure. The latter only for light ceiling.
2, materials
(1) plaster board. Gypsum plaster board is the construction of gypsum (CaSO4.1 / 2H2O) as the main raw material, mixed with appropriate special features of the fiber and admixture of core material, and with a special combination of solid tissue sheet.
Gypsum board characteristics, varieties, specifications, see "light steel keel gypsum plaque wall." It must be emphasized that the thickness of the ceiling plaster board is 9 mm.
(2) caulking putty and seam band. Light steel keel gypsum board ceiling used caulking putty and seam with the "light steel keel gypsum board partition."
(3) light steel keel. Ceiling light steel keel by the carrying capacity of sub-human keel and not on the human keel. By the use of points have a large keel, the keel, keel. According to the series of UC38, UC50, UC60 three series, the three series followed by light, medium and heavy keel.
Light series can not afford the Master load.
Medium-sized series can withstand occasional Master load, can be laid on its simple inspection road.
Heavy series can withstand the Master 80KG concentrated load on the laying of permanent inspection on the road, there are special requirements of the road, such as the frequency of frequent or heavy load, you need to hang on the roof of the horse itself, with the ceiling system separate.
Second, the installation process
1, operating conditions
Light steel keel gypsum board ceiling installation of the same operating conditions "wooden ceiling."
2, material preparation
According to the design requirements, select the appropriate U-shaped keel series, and according to the actual plane size of the main pieces and their accessories ready keel.
Cover panel of the species, specifications should meet the design requirements.
3, machine preparation
Light steel keel gypsum board installation and construction of equipment used with the "light steel keel gypsum board partition."
4, operating procedures
Plumb line → fixed boom → installation of the big keel → according to the elevation line to adjust the big keel → big keel at the bottom of the elastic line (cable) → fixed in the small keel → install gypsum plaster board → → plaster board finishes → clean.
5, construction points
(1) According to the design of the ceiling height on the wall line, the level of tolerance ± 5 mm.
(2) boom installation
1) Selection of boom. Generally speaking, light steel keel ceiling suspension can be selected according to the standard map, light steel ceiling diameter 6, medium and heavy selection diameter 8. If the design has special requirements, the load is large, you need to determine the structural design and checking.
2) According to the design or standard drawing to determine the hanging point spacing. Generally not on the ceiling space 1200 ~ 1500 mm, Master ceiling spacing of 900 ~ 1200 mm.
3) fixed ceiling. For the cast-in-situ concrete roof can be embedded in the construction of embedded boom or embedded iron, so that boom and iron welding. In the old buildings or concrete round hole under the plate can be used nail gun hanging point iron (small angle iron) fixed, need to add shim nail. The nail must be secure (if the tail of the nail with a hole, as the case may be iron and the use of iron nails to fix the hole). Or according to the hanging point expansion bolt position.
4) When the boom is installed, the upper end should be welded with the embedded parts, the lower end should be set thread, with a good nut, the end thread exposed not less than 3MM.
1) large keel welding method can be welded with the boom. But it is best to use boom and boom connection, tighten the screw firmly. Large keel connection can be connected with a long. Installed after leveling, consider the height of the crown from the ceiling, not less than the room short-span 1/200.
2) in the keel with hanging pieces and large keel fixed. In the keel spacing according to sheet size. When the spacing is greater than 800 mm, the keel should be increased between the small keel, which should be parallel with the keel, and hanging with large keel fixed, the lower surface and the keel at the same level.
3) In the seam joints should be installed in the transverse support, the keel, cross-keel with a flat connection with the small keel fixed.
4) The final installation of profiled roof or curtain box shaped keel or teach aluminum keel.
(4) plaster board and other sheet fixed
1) fixed plaster board can be used directly with self-tapping screw tapping screw gun and keel fixed. Nail head should be embedded in the board surface 0.5 ~ 1 mm. Nail head painted anti-rust paint with putty after leveling, self-tapping screws with 5 * 25 or 5 * 35 Phillips head countersunk head tapping screws.
Gypsum board joints, if it is close, the gypsum board should be left 3 mm slit, putty putty, paste the glass fiber seams. And then putty smooth scraping. If you need to stay slit, usually 10 mm, the slit within the design requirements can brush a paste, can also be concave aluminum pressure seam.
2) Fixed decorative plaster board and other materials, should first board in place, with electric drill (drill diameter slightly smaller than the self-tapping screw diameter) will be drilled through the board and keel, with self-tapping screws. Tapping screw spacing of not more than 200 mm.
(5) light steel keel rounded ceiling construction
1) When the arc surface is small, the arc surface of the smaller ceiling, can be used 26 # galvanized iron bent into the required arc, fixed on the roof of the already covered gypsum board, the brush on the white paint finishes. 0.8 mm aluminum can also be used to do surface finishes.
2) When the arc surface is large, large circular surface of the ceiling, the application of light steel keel to do skeleton, with a plaster board or plywood surface. There are two ways to make a skeleton with a lightweight steel keel.
First, the main keel and additional large keel welded into the skeleton (skeleton production should be determined by calculation or amplification), and then cut the small keel iron mouth, bent into the required curvature. Installation, the first installation of the keel frame, followed by the installation of vertical keel, vertical keel installation should be pulled through the line, so that the straight side and with the arc model side edge inspection to ensure that the arc round. Longitudinal keel with aluminum wire screwed on the additional large keel, curved keel with core pulling aluminum rivets and longitudinal keel connection, arc keel installation also need to model at any time check to round. Gypsum plaster board with the installation of the arc wall.
Second, first enlarge the sample, do arc-shaped table mode, and then "U" -shaped keel cut out the gap, and according to the table mold bending required curvature. The two curved keel on the deduction together on the table die on the Taiwan die with an application of self-tapping screws or core pulling rivets will be two "U" -shaped keel connected into a whole, so made the curved ceiling The main keel. And then along this arc keel span direction equidistant fixed two vertical keel clamped arc keel, and the vertical vertical keel for hanging bars, the entire piece of curved keel fixed along the top keel. Adjacent arc keel spacing is generally 60 mm. Arc keel fixed after the adjacent arc keel between the level of the keel, every other file set "scissors." All frames are connected by self-tapping screws or core pulling rivets.
Third, the quality of assessment
(1) to ensure that the project. The quality inspection and assurance items of wood frame or U-shaped light steel framework cover panel are shown in Table 7-20
Table 7-20 U-type light steel or wood frame cover panel quality assurance project
Content inspection methods
1. Light steel or wood frame and cover panels of the material variety, specifications, and drop-top shape of the basic structure of the fixed method in line with the design requirements of observation, the amount of inspection. Check the keel, cover panel product certificate
2. Light steel frame or wooden skeleton of the keel installation location Shape correct size, solid connection, no loosening, deformation, hanging rods and connectors should be consistent with the requirements of the product portfolio Observation and measurement
3. Cover panel and keel connection firmly. For the production of all kinds of modeling ceiling, plaster board joints should be designed according to the slit treatment, in order to prevent deformation of the sheet moisture, the plate surface should be pre-coated with a layer of waterproof coating observation and measurement
(2) the basic project. The basic items of quality inspection of wood frame U-shaped light steel skeleton cover panel are shown in Table 7-21
Table 7-21 Basic project quality of U-shaped light-weight steel or wood frame cover panel
Content inspection methods
1. Cover panel should be fixed in accordance with the requirements of design and assembly atlas, and keel connection closely, the surface smooth, no pollution, fracture, missing edge off angle, hammer India and other defects, cover panels should be designed before, Uniform, seamless, seams uniform, beautiful, eyes fixed with the same color of putty eyes fill up 2. Gypsum board fixed in the free state should be fixed, not easy to bend, convex drum and other defects. Self-tapping screw head slightly buried in the board, not to make paper damage, nail-eye for rust treatment and smoothing with putty 3. Cover panel should be flat, tight interface with no warping Adhesive, the adhesive type should be used Cover the choice of varieties of panels. Bonded cover panels shall not have delamination; plywood shall not have a plane through the Department, the vertical and horizontal seams straight, the width of the same. Straight flat, tight interface without warping. Observation and pull-line scale inspection
Fourth, the material consumption
(1) U-shaped light steel ceiling slightly solidification installation works.
1) hanging pieces of processing, installation.
2) positioning, bomb line, shoot nails
3) selection of materials, cutting, positioning rod control height, formation, installation keel and cross brace fittings, holes and other reserved.
4) temporary reinforcement, adjustment, correction.
5) light boxes, tuyere edge, keel settings.
6) placeholder, overall adjustment.
7) Install the ceiling cover.
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