How do real estate enterprises do prefabricated buildings? What this article says is too practical!
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Only party a can determine, promote and organize relevant units to coordinate the design.
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Decision making and management problems the cost increment of two prefabricated buildings is mostly paid by Party A.
I hope all readers will criticize and correct.
Prefabricated buildings have several basic characteristics, In short, it is “six modernizations”, that is, design standardization, production industrialization, construction assembly, decoration integration, management informatization and application intelligence.
Often in the early stage of the project, many units have not been determined through bidding.
Insufficient understanding and utilization of the advantages of prefabricated buildings, insufficient utilization of quality advantages, and the advantages of no plastering are not reflected.
These organizational tasks are generally completed in the early stage of the project.
emphasizing the integration of four systems is conducive to the overall improvement of building standards.
Due to the construction period and sales pressure, plus the lack of understanding of prefabricated buildings, some Party A often adopts a passive attitude of meeting and meeting the standards, resulting in the failure to do the work that should be done in the early decision-making and organization management, or although it has been done, it has not been done in place, and there is no resumption afterwards, which has a great impact on the cost of prefabricated buildings.
the main factors causing the cost increment are Party A’s factors, in addition to normative and policy factors.
No one organizes such coordination, which will lead to the failure to organize the interspersed construction in the subsequent construction links and shorten the construction period.
What is a prefabricated building? According to the definition of the technical standard for prefabricated concrete buildings (GB / t51231-2016), a prefabricated building is “a building in which prefabricated components are integrated in the main parts of structural system, peripheral protection system, equipment and pipeline system”.
For example, the use of high-precision formwork and high-precision blocks can avoid plastering; The integration of exterior wall structure and decoration can not only improve product quality, but also reduce the maintenance and repair cost of facade decoration.
Only party a can organize the system design and construction of the four main systems.
Therefore, the common problems in traditional buildings are not reduced, but increased in prefabricated buildings.
The advantages of integrating multiple functions, solving persistent quality problems, reducing construction links and improving functions are not reflected..
3 Disadvantages of prefabricated buildings since prefabricated buildings have so many advantages, why are there still so many construction units to avoid? The reasons are nothing more than the following: increased cost, insufficient resources on the supply side, long construction period, fragile quality and low market awareness.
This is also a mandatory requirement in national and provincial standards.
The advantages and economic benefits of prefabricated buildings are the focus of Party A.
The economic benefits that prefabricated buildings can bring to Party A are mainly reflected in the following aspects: increasing product competitiveness is conducive to capital turnover and return, obtaining government subsidies or rewards, social benefits and environmental benefits.
If there is no one to make decisions and organize the integration and cooperation of these four systems, and still follow the traditional management mode of cast-in-situ buildings, the advantages of prefabricated buildings will be lost and it is difficult to have cost advantages.
This definition emphasizes the prefabrication integration of the four systems and the definition understood by most practitioners in the construction field in China (it is also the definition of foreign architecture circles).
The list is as follows: 2) some organizational work can only be done by Party A, which can not be replaced by other links.
At present, with the goal of “improving efficiency, improving quality, reducing cost and reducing loss”, few Party A take the initiative to adopt the assembly construction method for development and construction.
For example, if the embedded part is either repeated or omitted, or the decoration part collides with the completed structure, the cost will not be reduced, but will increase.
However, many projects still follow the traditional way: first do the structure and then do the decoration, which can also meet the requirements of evaluation standards, but this method does not combine the characteristics of prefabricated buildings.
However, with the attitude of passive compliance, it is difficult for Party A to play this unique role, which can not be replaced by other links.
It mainly includes two aspects: 1) some adaptive decisions can only be made by Party A.
Prefabricated building is the integration of structure, external protection, equipment and pipeline and internal four systems.
Next, this paper will analyze the key problems that need to be paid attention to in the process of prefabricated construction from the perspective of Party A and put forward some suggestions.
On the contrary, the extension of structural construction period leads to the extension of the whole construction period and increases the financial and management costs.
For example, the key measures of prefabricated buildings are to maximize the strengths and avoid weaknesses, shorten the construction cycle and improve the cost-effectiveness of products.
At this stage, many Party A are still doing assembly projects, thinking inertia, lack of organization and coordination, resulting in a large number of unnecessary duplication and rework, and paying a high learning cost.
At present, Party A’s understanding of its role as the main body of prefabricated construction and its understanding of prefabricated construction and practical experience basically determine the cost increment of prefabricated construction.
Most Party A is still in the state of passive acceptance and having to adopt the assembly construction due to the requirements of the government, market development, environmental protection and other factors.
These organizational work determines whether it can be done according to the assembly law and save money.
At this stage, most Party A in China holds a passive attitude towards prefabricated buildings, which is the root of a series of problems in Party A’s links and one of the important reasons for the increase of construction period and cost of prefabricated buildings at this stage.
Through the analysis of several actual cases, briefly summarize some main problems of Party A in decision-making, organization and management, as shown in the following table: 1 Party A should give full play to the role of decision-making and organization.
This is mainly to solve the deficiencies of Chinese architecture over the years: low building standards, poor suitability, comfort and durability, delivery of blank houses, pipelines buried in concrete, no overhead on the ground, different drainage floors, etc.
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With the characteristics of high integration, the assembly type has particularly high requirements for the role of Party A in organization and coordination.