7.
4.
Your every message and every praise are the driving force for us to move forward! If the article is helpful to you, please forward it to your relatives and friends! Compared with the traditional secondary pouring, the one-time pouring construction of the inverted sill in the kitchen and bathroom greatly reduces the leakage risk.
Formwork installation shall be carried out after binding of surface reinforcement, and the setting out of inverted sill must be accurate, Prevent later chiseling caused by deviation.
The positioning reinforcement shall be connected with the plate reinforcement (welding connection and fixation is recommended), and the plate reinforcement shall be connected and fixed with the beam reinforcement (welding connection and fixation is recommended); The positioning bars shall be welded into H shape in advance, and then arranged and reinforced according to the spacing of 60cm, as shown in the figure.
The reinforcement of hanging formwork for one-time pouring of inverted sill is more complex than that of conventional secondary pouring.
At the same time, the construction precautions and construction requirements shall be specified during the general contract and mobilization disclosure, and the supervision shall be strengthened during the construction process; If the floor is high, it is recommended to use finished steel formwork for construction; Because the pouring of the counter sill and slab surface of the kitchen and bathroom structure is relatively time-consuming, it is not recommended to carry out one-time pouring in the rush stage (such as the rush pre-sale construction stage, etc.).
9.
A certain distance shall be reserved in advance at the joint between the water stop sill poured at one time and the shear wall (secondary construction is required in the later stage of this place), so as to facilitate the formwork sealing and reinforcement of the shear wall at this place.
Due to the large vibration during the pouring process, it is easy to deviate, so the on-site supervision shall be strengthened during the pouring process.
Early formwork removal is easy to cause concrete damage.
8.
After one-time concrete pouring, the formwork of the waterstop sill shall be removed at least 2-3 days later.
Taking four households on the first floor as an example, the first formwork reinforcement of a single floor (4 kitchens and 8 bathrooms) takes two days, and the subsequent formwork removal and turnover to the next floor takes one day, with at least 6 carpenters and at least 2 welders.
6.
5.
Positioning and setting out in the early stage, hanging formwork 2.
this paper.
Suggestions: during the bidding of the general contractor, the one-time pouring and forming of this part shall be specified, which shall be strictly implemented by the general contractor.
After the formwork removal of the structural inverted sill, the finished products shall be reinforced for protection, and the supervision shall be strengthened during the formwork removal of the floor, otherwise it is easy to cause damage.
3.
Reinforcement of hanging formwork 3.
In addition to the reinforcement of timber and finished formwork clamp, vertical reinforcement (diameter greater than 14) shall also be used for positioning.
How to construct on site? What are the key points? The following is a field example for your reference.
Matters needing attention after formwork removal 1.
Construction process: completion of slab reinforcement → positioning and setting out of inverted sill → formwork allocation and hanging formwork reinforcement → one-time pouring of inverted sill and slab concrete → formwork removal and forming of inverted sill 1.
The formwork shall be arranged on the next floor to avoid garbage pollution on the slab surface and reinforcement trampling.
At present, it has been widely used.
2.
One-time pouring with structural slab 4.
During the construction of hanging formwork, the floor reinforcement shall be effectively protected, and a sidewalk shall be added to prevent the reinforcement from trampling and affecting the thickness of reinforcement protection layer.
