How many millimeters are the main keel spacing during the construction of the lightweight steel keel ceiling?
Grille installation
Specifications are generally 100mm × l00mm; 150mm × l50mm; 200mm × 200mm and other square grille, the general card
With a decorative panel plate stuck on the keel.
Fixed hanging rod
Fix the hanging rod with expansion bolts. Not on the ceiling, boom length less than 1000mm, you can use φ6 hanging
Rod, if more than 1000mm, should be used φ8 boom, should also set the reverse support. The boom can be cold drawn
And disk round bar, but the use of disk round steel should be used to straighten the machine. Master's ceiling, boom length less than 1000mm,
You can use φ8 of the boom, if more than 1000mm, should be used in the user φ10 boom, should also set the reverse support.
One end of the boom is welded with L30 × 30 × 3 angle code (the aperture of the corner code should be determined according to the diameter of the boom and expansion bolt)
The other end can be tapped out with more than lOOmm screw, you can also buy finished screw welding. Make a good boom should do
Rust treatment, boom with expansion bolts fixed to the floor, with the impact hammer drilling, aperture should be slightly larger than the expansion of the bolt
diameter.
Bears
With the level of each wall in the room (column) angle out of the horizontal point (if the wall is longer, the middle is also appropriate to copy a few points)
Pop-up line (level according to the ground is generally 500mm), from the level of the ceiling to the height of the design plus 12mm (a
Layer of white plate thickness), with the powder line along the wall (column) pop-up line, that is, the tail of the keel down the skin line. Simultaneously,
According to the ceiling plan, in the concrete roof pop-up main keel position. The main keel should be from the center of the ceiling to the two points, the largest
Spacing of 1000mm, and marked the fixed point of the boom, the fixed point of the boom spacing 900 ~ 1000mm. Such as encountering beams and tubes
The fixed point of the road is greater than the design and procedure requirements, and the fixed point of the boom should be increased.
The spacing of the main keel is based on the hanging bar, the conventional hanging bar spacing is 1 meter, but the actual specification is between 0.8-1.2, the distance between the keel is 0.4 × 0.6, 0.3 × 1.2 pitch, the specification requirement is to double Keel, if you want to consider the master, with the smallest spacing and can be considered local reinforcement.
