Overhanging Scaffold; channel spacing
The rigid connection, then pull a small bar to deep inside the wall, in addition to fasten with the scaffold fastener and a large bar, but also with two 50cm steel tube short rectangular fastener is fixed on the wall, into the wall not less than 24cm.
The longitudinal horizontal rod shall be on the inside of the vertical pole, and its length shall not be less than 3 spans. Longitudinal butt joints should be staggered, two adjacent longitudinal joints should not be set in a synchronous or within the same span, not synchronous or different across the two adjacent joints staggered horizontal distance should not be less than 500mm, each jointcenter distance from the primary node is no larger than the vertical distance of 1/3. A bar two segment height should not exceed 2cm, the horizontal bar full Changping flatness can not exceed the total length of the scaffold of 1/300, and is no more than 10m.
Vertical spacing and verticality:Vertical pole and big cross bar must be fastened with right angle fastener, and the degree of fastening screw should not be less than 40N m, and should not be greater than 60N. M, and use the kilogram wrench to check before it can be used.The vertical distance of the scaffold vertical rod is not more than 1.5m, and the deviation is allowed to be set at + 5cm, and the vertical allowable deviation of the vertical rod is not greater than the 1/200 of the frame height, and not more than + 10cm.
Placement of the cantilever beam, welding rod base, since the corner in order to both sides of the bottom vertical pole, bottom and vertical sweeping bar buckle is fixed, installed in the horizontal sweep shot, and is fixed with a vertical rod, each side up 3--4 pole, then installed the first step (longitudinal flat bar and the vertical and lateral buckling) fixed flat bar (a small bar, near the pole and longitudinal vertical rod fastening fixed). To correct the vertical and horizontal lever of the upright pole to meet the requirements, tighten the fastening bolts according to the 45--55N & M force to form the initial section of the frame, and then extend forward in accordance with the above requirements until the first step of the rack is completed. After crossing the circle, the quality of the structure shall be thoroughly checked, and the design requirements and the quality of the frame shall be strictly ensured. The end wall parts shall be provided, and the second and third steps shall be erected according to the operation procedures and requirements of the first step...... In accordance with the erection process and the fashion set, the wall piece and the scissors support are provided with a work layer, a cross bar, a foot board and a work layer railing, a foot blocking board and a close mesh net.
The requirements for the erection of the overhanging scaffolding are as follows: placing cantilevered steel beams, welding the upright pole base, and erecting the bottom upright pole from both sides of the corner from side to side; the bottom end and the longitudinal sweeping rod are buckled and fixed, and the transverse sweeping rod is installed
