It is no stranger to the construction of wooden circular column formwork, then how long is the time for the forms to be dismantled, especially when I saw the accident at the Fengcheng Power Plant in Jiangxi on the Internet, I was afraid that I would be afraid of it, and the premature removal of the formwork building was not yet Fixed, there will be security problems, preferring to be fixed for a longer period of time, and not to be shorter, especially now that construction is in full swing, safety must be! The wooden circular column forms has been observed and practiced for a long time. If the temperature is right, the forms can be removed the next day after playing the column. The speed is much earlier than the traditional forms!
The time that affects the removal of the formwork depends on the strength of the concrete. Generally, when the concrete strength can ensure that the surface and edges are not damaged by the removal of the formwork, the side formwork without load bearing can be removed, and the load-bearing formwork must reach the specified strength before it can be removed. It is dangerous to have insufficient strength without bearing the weight. Are there few examples in reality? Construction units must pay attention to this problem, and don't wait until there is a problem and pay attention to it!
circular column forms removal sequence:
The general procedure for demoulding is: first dismantling of the rear branch, and then dismantling of the first branch; first remove the non-bearing part, then remove the load-bearing part, and do not damage the component or forms. For the removal of the beam and plate formwork of the tool-type mould, the fixture should be removed first, the square beam and the side panel should be removed, and then the wooden wedges should be loosened to lower the pillars and trusses, and the bottom forms and the cross-blocking wood should be taken out one by one, and then removed. Truss, pillars. For the removal of the side plates supported by the fixed steel formwork, the nut and the hook bolts and the steel shackles of the pull bolts should be removed first, and the U-shaped card on the stencil should be removed and then removed from the top to bottom. For the demolition of columns, beams and plates of the frame structure, the column formwork should be removed first, then the wire stalk lifter on the support poles should be loosened, so that the beams of the supporting beams and the plates are smoothly lowered, and then the side plates and platform plates of the beams are removed. Pull out the bottom plate of the beam, then remove the cross sill, beam sill, strut connecting rod and column.
circular column formwork removal requirements and precautions
The removal of the formwork shall be carried out in accordance with the proposed demolition procedure and the disassembled formwork material shall be stacked neatly at the designated location. When removing the mold at high altitude, there must be sufficient safety passages to clearly define the safe operation area, and the construction personnel must not stand under the demolished mold. The demolished shelves should be erected separately from the formwork support system. The removed horizontal plate should be connected up and down, and it is strictly forbidden to throw it. The disassembled parts of the combined steel formwork should be sorted, stacked and recycled in time. The connected connecting fasteners must be disassembled before they can be stopped. If the disassembly is stopped midway, the moving parts must be retightened. When removing the stencil, do not use excessive force or hard skid. Do not hit the hammer directly or use the smashing bar to smash the slab.
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