Is outside building protection single row bent with cantilever steel instead of channel steel?
Construction of single door rack erection of cantilever I-beam steel can not be used instead of steel, because the provisions of article 6.10.2 JGJ130-2011 "construction of steel tubular scaffold safety technical specifications" cantilever beam application of biaxial symmetry,...... steel beams shall not be less than 160mm. Therefore, the channel shall not be used, the cross section is asymmetrical, and the cantilever bent, the cross section is more likely to be unstable.
JGJ130-2011 "construction of fastener type steel pipe scaffolding safety technical specifications" article 6.10.2 provides that cantilever steel beam applied biaxial symmetric steel, steel beam cross section shall not be less than 160mm.Therefore, the channel shall not be used (cross section asymmetry, cantilever bending, cross section is more likely to lose stability)
The support pipe is made of phi 48*3.5 steel pipe. ?Cantilever supporting part of the No. 16 steel support, high-strength steel wire rope cable stayed with the upper flange, cantilevered spacing is 3 meters, placed No. 10 channel in the pole position, welded 100mm Phi 20 steel rod, fixed pole for preventing pole displacement. ?The vertical distance of the vertical rod is 0.9m, the longitudinal distance is 1.5m, and the step distance is 1.80m. ?Floor type single row scaffold vertical rod 0.5m. Cantilever single row scaffold distance from wall 0.5m. A large bar step 1.8m, a small rail longitudinal distance 1.0mThe scaffolding on the floor position of each wall spacing 3M set a column; due to large, high school on each floor, wall column root, middle position of adopting 48*3.5 steel tube columns hold a rachel. The floor part and the wall piece are pre embedded in the anchor ring, and the steel ring is penetrated and fixed on the anchor ring, and the anchor ring is made of phi 16 round steel bars. ?The scissors support shall be set from the bottom to the top of the ground from 45 to 60 degrees, and the scissors shall be continuously arranged in both horizontal and vertical directions, and each corner shall be provided with a circuit. ?The facade protection shall be made of green mesh with a dense mesh, and it shall be neat and well proportioned, with a clean appearance, and a steel wire net shall be hung on the inside of the mesh, so that it shall be firm and reliable. The tubes are spaced 500 full and painted with yellow and black paint. ?At the corner of the building, the end of the I-beam is connected with the side column with 10 zinc coated round steel to form a lightning protection net.
