Method of light steel keel gypsum board ceiling (word format)
(1). The lifting point and structure are basically not firm; The suspender is not firmly connected and has insufficient strength, resulting in tensile deformation; Local people trample or increase the accidental load; The suspender is not straightened in advance, especially those who use galvanized wire as suspender shall pay more attention; (2). During installation, pay no attention to the setting out grid or the setting out grid is inaccurate or not aligned, or the specification and size of the cover plate are not checked in advance to match the frame size and the installation interval is reserved; After installation, the keel is bent by stepping or stacking objects; The skeleton materials shall not be collided, bent or warped during transportation and storage; The distance between lifting points is too large, the rigidity of keel is not enough, the productivity or keel joint is not firm, resulting in looseness; (3). The size of cross keel cutting material is not controlled correctly; The cutting end of the transverse keel is not straight, and when the lower plane intersects and connects, the height is not even;
