Once changed, the construction period and cost will be greatly affected.
2.4.1 special terms to be explained in the contract 1) contracting scope; 2) Construction period; 3) Specify the aluminum alloy model, the date when the aluminum alloy formwork enters the construction site and the product quality; 4) define the delivery time, detailed design and production cycle of drawing joint review; 5) Specify the support and reinforcement system in the quotation; 6) define the scope, quantity, specification and model of auxiliary materials, such as the quantity of release agent, embedded parts and split screw sleeve; 7) promised reuse times; Provide professional guidance from the manufacturer, disclosure and training for workers; 8) modification cost of aluminum formwork after change; Recycling and treatment of aluminum alloy formwork after use; 9) Phased fund payment proportion; 10) Quality standards and acceptance of raw materials; 11) Pre assembly quality standards and acceptance; 12) Site installation quality standards and acceptance; 13) The quality standard of finished concrete products shall be indicated to ensure the acceptance of the coating unit; 14) Scope and duration of warranty for aluminum alloy formwork; 15) The definition of auxiliary labor, such as mortar plugging, hole plugging, platform staggering repair, surveying and setting out.
Communicate with the owner, the designer and the aluminum alloy formwork subcontractor in time.
The floor height should be less than 3.3m.
All works of the aluminum formwork implementation workflow shall be arranged in a compact manner.
The contract shall be signed in time and the advance payment shall be paid.
Some works shall be inserted in advance or carried out synchronously as far as possible.
2.1 Large scale and experienced aluminum alloy formwork manufacturers shall be selected for aluminum alloy formwork subcontracting inspection, and aluminum alloy formwork companies that have cooperated with the construction unit of the proposed project shall be given priority.
The Project Department shall specially provide a warehouse for placing auxiliary materials and accessories to prevent material loss.
2.5 The aluminum alloy formwork subcontractor shall be responsible for professional design and reasonable formwork preparation.
climbing frame), which can effectively reduce the structural holes, organize the construction of each process (external wall doors and windows, railings, putty, etc.
Moreover, the external wall is a full concrete wall structure, and it is not easy to set wall connecting parts, wire rope unloading and other measures, which will affect the structural construction, And it is not conducive to the control of construction quality and safety guarantee.
After passing the re inspection, all parties shall sign for confirmation and retain relevant acceptance image data.
The aluminum mold unit generally takes about 45 days from structural optimization to aluminum mold transportation to the site.
2.2 joint review of construction drawings: the construction unit, the design unit, the general contractor and the aluminum alloy formwork subcontractor shall jointly review and approve the drawings, and make corresponding image data and records.
1.2 scope not suitable for aluminum alloy formwork 1.3 the supporting external frame form is particularly suitable for the construction with attached lifting scaffold (i.e.
The structure, architectural design and delivery standards can not be modified and adjusted after being determined by all parties.
Except for partial distribution nails, other components (diagonal braces and embedded parts, vertical back ribs, vertical poles, feed holes, split screws) shall be assembled in full accordance with the site implementation requirements.
The aluminum formwork processing requires high accuracy for the reserved position of the I-beam, and the construction is difficult and affects the construction period.
2.
Focus on the strength of the manufacturer, aluminum material, plate surface forming, production process, design optimization ability, processing quality, supply capacity, actual quantity qualification rate of concrete forming and technical service, and understand its production and processing cycle, product price, recovery residual value rate, accessory matching form, and transportation distance.
2.8 The aluminum molds transported to the site shall be numbered by the aluminum molds that have passed the trial assembly acceptance, packed according to the on-site installation sequence, and transported to the Project Department in time in combination with the project schedule and deployment.
2.6 The formwork processing and fabrication project department shall arrange professionals to track and timely feed back the surface treatment form (electrostatic powder spraying), production quality, progress and trial assembly effect to the project department, the construction unit and the supervision unit.
2.7 Trial assembly and acceptance The aluminum mold unit shall carry out trial assembly of aluminum mold in the factory at a ratio of 1:1.
3.
The general contractor shall reasonably plan the stacking site to avoid material loss.
The materials mobilized shall be accepted according to the list.
2.3 The Drawing Optimization Project Department shall cooperate with the design department of the aluminum alloy formwork subcontractor to optimize the original construction drawings.
Therefore, it is not recommended to use steel cantilever steel pipe external scaffold.
are constructed in reverse from bottom to top along with the main body), achieve no plastering of the external wall, improve the project quality, accelerate the construction period, and enhance the image of the construction site.
From | Shenzhen construction engineering finishing | bean pudding construction 1.
When the aluminum alloy formwork is used with the steel cantilevered steel pipe external scaffold, the formwork needs to be reconfigured in the cantilevered layer, which reduces the integrity of the aluminum alloy formwork, and the concrete molding effect is poor.
3.2 the walls of elevator shaft and staircase should be designed as full shear wall structure..
The stacking height of on-site materials shall not exceed two layers.
The Project Department shall plan the access route and formwork stacking site in advance.
The chief engineer of the project shall track the design content and design progress in time and organize joint review, which shall be reviewed by the chief engineer of the branch company.
Conduct in-depth docking with the door and window unit, railing unit and water and electricity installation unit to ensure that each detail can be properly docked, and timely confirm with the construction unit, the design unit and the supervision unit in writing.
Square timber shall be set at the bottom.
The Project Department attached with the inspection and acceptance form shall organize relevant personnel from the construction unit, supervision unit, design unit, technical center of the group company, engineering management center and branch company to carry out acceptance on the site.
2.4 The contract shall be signed in accordance with the company’s aluminum alloy formwork subcontract model, and the corresponding special terms shall be supplemented.
Inspect the factories and projects under construction of aluminum alloy formwork manufacturers.
General requirements 1.1 the scope of application of aluminum alloy formwork is especially applicable to concrete structure buildings with more than 25 standard floors and external walls designed as internal insulation.
The aluminum mold unit shall rectify and adjust in time according to the acceptance opinions.
Structural optimization 3.1 In order to meet the requirement of no plastering, the external wall structure shall be designed as a full cast-in-place concrete wall to avoid masonry.
