With the emergence of a large number of modern large-scale building systems in our country, fastener-type steel pipe scaffolding can no longer meet the needs of construction development. It is urgent to vigorously develop and promote the application of new scaffolding. Practice has proved that the use of new scaffolding is not only safe and reliable in construction, but also fast in assembly and disassembly. The amount of steel used in the scaffold can be reduced by 33%, the assembly and disassembly efficiency can be increased by more than twice, the construction cost can be significantly reduced, and the construction site is civilized and tidy.
The process flow of erection: site leveling and compaction→concrete foundation pouring→positioning and setting of full-length vertical pole pads→discharging longitudinal sweeping poles→erecting poles→buttoning longitudinal sweeping poles with vertical poles→installing transverse sweeping poles→installing longitudinal horizontal poles →Install transverse horizontal poles →Install scissor braces →Install wall-connecting parts →Tie →Lay scaffolding boards and toe-stops on the working floor. According to the structural requirements, use a ruler to measure the distance between the inner and outer poles and the wall at the four corners of the building and mark them. Use a steel tape measure to straighten the pole position, and use a small piece of bamboo to mark the pole. The backing plate should be accurately placed on the positioning line. The backing plate must be laid smoothly and must not be suspended in the air. During the erection of the first-floor scaffolding, a diagonal support is installed in each frame along the perimeter, and an additional bidirectional support is installed at the corner. It can be dismantled only after this part is reliably connected to the wall parts between the scaffolding and the main structure. When the operating level of the scaffolding is two steps higher than the connecting wall parts, temporary stabilization measures should be taken until the connecting wall parts are erected before they can be dismantled. For a double-row rack, it is advisable to erect the inner row of vertical poles first and then the outer row of vertical poles. In each row of poles, it is advisable to erect the poles at both ends first and then the middle one. After they are aligned with each other, erect the poles in the middle part. The connection between the inner and outer rows of the double-row rack must be perpendicular to the wall. When erecting poles to lengthen, it is advisable to erect the outer rows first and then the inner rows.
The dismantling procedure should follow the principle of starting from top to bottom, first erecting and then dismantling. The general dismantling sequence is safety net → barrier → scaffolding board → scissor brace → transverse horizontal pole → longitudinal horizontal pole → vertical pole. Do not dismantle the stand separately or dismantle it in two steps at the same time. Achieve one step at a time, one stroke at a time. When removing the pole, hold the pole first and then remove the last two buckles. When removing longitudinal horizontal bars, diagonal braces, and scissor braces, first remove the middle fastener, then support the middle, and then unfasten the end fasteners. All connecting wall rods must be lowered simultaneously with the removal of the scaffolding. It is strictly prohibited to dismantle the entire layer or several layers of connecting wall parts before dismantling the scaffolding. The height difference of segmented demolition should not be greater than 2 steps. If the height difference is greater than 2 steps, additional wall-connecting parts should be added for reinforcement. It should be ensured that the stability of the frame is not destroyed after removal. Before the connecting wall rods are removed, temporary supports should be added to prevent deformation and instability. When the scaffolding is dismantled to the height of the last long steel pipe at the bottom (about 6m), temporary supports should be set up at appropriate locations for reinforcement before the wall parts are dismantled.
Post time: Mar-27-2024