Aluminum die is an aluminum alloy formwork system, which consists of panel system, support system, fastener system and accessory system. The panel system adopts extruded aluminum alloy profiles to replace the traditional wooden formwork, with high-strength steel support and fastening system and high-quality hardware pins and other accessories, which has the characteristics of light weight, high strength, overall stability, convenient disassembly and reuse.

Through lofting design, the aluminum formwork panel system can meet the needs of various building components.

In lofting design, "80% standard parts and 20% non-standard parts" are usually used together to realize flexible combination and improve turnover rate.

the second part

1. The construction environment of aluminum formwork is clean and tidy, which can enhance the humanistic care for workers. After construction, there is less waste, and the template material is renewable, which conforms to the concept of environmental protection and can bring good social benefits.

2. Using early formwork support system, one panel system and three support systems together can realize the construction progress of four days and one floor. For a 33-story building, it can save about one month's construction period compared with the traditional wooden model construction.

3. The aluminum formwork construction can be quickly disassembled and assembled, which can effectively shorten the construction period.

The disassembly and assembly operation is simple, and the technical requirements for workers are not high, which can solve the problem of shortage of skilled workers on site.

4. The template has high strength and stability, and the concrete surface after demoulding has high flatness and precision, which can avoid surface bulging and save cost.

5. Stair constructional column, lintel of doors and windows, waterstop and anti-edge, caisson anti-sill and other small secondary components can be formed at one time.

Good effect, can effectively solve the leakage problems of external walls, doors and windows, bathrooms and so on.

6. Due to the improvement of the quality and precision of concrete engineering, the time of site retest can be saved for exterior wall door and window engineering, and the production and installation can be arranged directly according to the design drawings. The early installation of exterior doors and windows provides a venue for interior decoration, thus realizing the possibility of synchronous construction of "civil engineering-door and window installation-interior decoration" in the building and greatly shortening the delivery time.

7. Compared with traditional wooden formwork, aluminum formwork has advantages in economic factors such as construction efficiency, construction period, maintenance cost, personnel requirements, mechanical requirements, and repeated use times. Moreover, by recovering the residual value and increasing the turnover times, the overall cost of aluminum formwork can be equal to or even lower than that of the traditional wooden formwork system, bringing better economic benefits.

Considering the cost saving of not placing plates in batches, when the standard number of floors is 26, the cost of the two templates is equal.

Without considering the cost saving, when the standard number of floors is 37, the cost of the two templates is the same.

Comparative analysis on the cost of aluminum mold and wood mold of a company in Guangdong Province

As can be seen from the cost comparison:

A large number of high-rise residential buildings in the group are about 33 stories high, and the cost of using aluminum molds is lower than that of traditional wooden molds; If it can be copied between buildings, the comprehensive economic benefits of aluminum molds will be more obvious.

the third part

Similar to the deepening design of steel structure, aluminum die needs a deepening die matching design process according to the construction drawing. The period from deepening design and production scheduling to on-site trial assembly is about 2 months.

In order to make the concrete members take shape at one time and reduce a lot of work of opening holes and slotting in the later period, a complete set of construction drawings of civil engineering, water and electricity and fine decoration is needed when designing aluminum formwork, which can be used for template typesetting design, reserved hole pipeline positioning and detailed layout design of doors, windows, holes and ridges.

If there are complete construction materials, the mold matching design process is equivalent to a deep joint review process, which can find the "mistakes and omissions" of design drawings of various disciplines as soon as possible, avoid rework and save the construction period.

After die matching, production scheduling and on-site assembly and debugging, the design of aluminum die is not allowed to be changed, otherwise it will affect the construction efficiency and bring material waste.

part four

First, the most critical requirement of aluminum mold construction for design is not the unification of products, but the unification of design standards and the standardization of design management processes, which requires design pre-positioning. If the product positioning is not determined in advance, the design time in the early stage will be compressed, and the drawing cannot be made in advance, and there will be more design changes in the later stage, and a large number of aluminum mold construction cannot be realized. Therefore, to implement aluminum formwork construction, it is necessary for all departments to unify their thinking and form a stable development and design idea, instead of "trilateral project".

Secondly, the implementation of aluminum mold will bring many benefits to the hardcover building, but the location of water and electricity embedment cannot be changed in the future, so the reserved point of water and electricity embedment in indoor hardcover design must be determined before the completion of architectural design and the start of supporting design of aluminum mold. This requires the decoration design drawings to intervene as soon as possible and complete the design in advance.

Thirdly, it is undoubtedly an effective way to complete design faster, realize pre-design and stable design, and promote product design standardization. Through standardization, rapid design and rapid reproduction can be realized, the design cycle can be greatly shortened, and a set of stable upper-level civil engineering, equipment and decoration construction drawings can be completed before the civil engineering completes the basement construction. Create necessary conditions for aluminum mold construction.

The fifth part

Some technical problems that need to be paid attention to are also reflected in the construction process of aluminum formwork in Fenggang project of Guangdong Company:

Aluminum formwork construction adds more integral concrete members to the exterior wall and indoor, which greatly changes the stiffness of the building structure. Therefore, in the future project implementation, the structural design should fully consider the influence of these additional concrete members, and make use of the increase of external wall stiffness and indoor load to make the stress more reasonable.

The wall surface of aluminum formwork construction is too smooth, which leads to the hidden danger of brick sticking and insulation layer falling off in internal and external walls. Therefore, in the future project implementation, we should pay attention to the in-depth study of release agent and wall tile adhesive, especially for the wall surface that needs local batch swing and internal and external insulation, reliable anti-falling measures should be taken.

The change of shear wall section in the upper part of the building makes the aluminum mold show the shortcoming of insufficient flexibility. On the one hand, the matching design of aluminum mold is required to optimize the matching of standard parts and non-standard parts more reasonably, on the other hand, it also forces the main design to improve the standardization.

Rapid construction creates conditions.

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