Some friends also want to ask, the keel spacing is too large, which will affect the stability of the ceiling. As we all know, then, if the interval is smaller, isn't it more conducive to the load-bearing of the ceiling? Actually, it is not. According to industry insiders, the spacing between ceiling joists should not be too large or too small. Too wide spacing has a great influence on the bearing capacity of ceiling keel, while too narrow spacing will make the weight of ceiling keel heavier and increase the burden of ceiling keel. Generally speaking, the spacing of suspended ceiling joists is: the spacing of suspenders is the same as that of main joists, the spacing of main joists is 900mm- 1200mm, the spacing of secondary joists is 300mm/400mm/600mm, and the spacing of side joists or expansion bolts is 600mm.
Of course, the spacing of the ceiling keel should also be adjusted according to the different ceiling materials.
1, light steel keel
Wooden keel shall be used as the edge dragon, and wooden keel or joinery board shall be used for the lamp trough. Fire retardant paint must be painted where wood is made.
Keels shall be at least 50, with a spacing of 30cm, and suspenders shall be 60-80cm. A gap of 5-8 mm shall be artificially reserved between plasterboard and board. Self-tapping screws on the surface of plasterboard shall sink to 1-2mm, and anti-embroidery treatment shall be made to ensure smooth and firm lines. 2. Wooden keel
Keels shall be at least 3×4, with a spacing of 30cm, and the spacing of suspenders shall be 60-80cm. It is forbidden to nail the derrick directly to the top with a wooden wedge, and brush the fire retardant paint tightly until the color of the wooden keel is not visible. The keel should be covered with a full-size eucalyptus core 9 cm board in front of the gypsum board, and a gap of 5-8mm should be artificially reserved between the gypsum board and the board. Self-tapping screws on the surface of gypsum board should be recessed to 1-2mm, and be treated with anti-embroidery.
3. Aluminum gusset plate
Strict standards are needed. Tongue and tongue of light steel joists should be aligned, the spacing between joists should be less than 50, and the spacing between steel hangers should be 60-80 cm. When placing the board, be careful not to press the board out of the pit, and the contact between the edge strip and the tile should be sealed with sealant.
4. Aluminum-plastic board
The wooden keel should be at least 3×4, with a spacing of 30 cm and a spacing of 60-80cm. Apply strict fire retardant paint. Cover the keel with full-size eucalyptus nine-centimeter board, and then stick the aluminum-plastic board with universal glue. A gap of 3-4mm should be artificially reserved between aluminum-plastic plates and plates, which has been filled with other colors to achieve the effect of framing. Smooth and firm, irregular shapes should be smooth, and the corners of the folded surface should be smooth and not easy to break.
The spacing of ceiling keel is related to the bearing capacity of ceiling and the beauty of ceiling. Moreover, the spacing of ceiling keel is scientifically calculated, so it must be constructed in strict accordance with the requirements.