Whether it is component prefabrication production or on-site construction and installation, it can greatly improve the work efficiency and reduce the cost..

The problem of standardization has become an obstacle to the development of modular architecture, It is urgent to guide designers at the design concept level.

Q what are the key points of structural system design and selection? A for the structural system of precast residence, safety and reliability, convenient construction and high degree of production standardization are the core objectives of its design and selection.

They lack the application of modular architectural design concepts such as standardized design and system integration.

The architectural design shall adopt the design method of module and module combination, follow the basic principle of module and module coordination, and effectively coordinate the architectural design and the standardization of parts and components from the front end.

The selection standard is the first standardized design and selection standard for components of precast housing in China.

“Structural system”, “peripheral protection system”, “equipment and pipeline system” and “interior decoration system” clarify the specific selection principles of the system, performance indicators or parts from the perspective of the four systems of precast buildings and their characteristics.

Among them, “general principles” and “terms” specify the preparation purpose, general principles, scope of application and basic concepts of relevant terms of this standard.

Q why should the selection standard be formulated? A since the issuance of the guidance on vigorously developing precast buildings (No.

and the National Engineering Survey and design master, to interpret the content of the standard.

At the same time, the plane design should adopt the layout of large space, and the facade design should realize diversification through facade materials or colors on the basis of standardization.

At the component level, it is mainly to select the components and their interfaces.

For areas where equipment pipelines and parts such as toilets, kitchens and public pipeline wells are concentrated, the size of these functional spaces shall be determined first.

Q what is design selection? A design and selection refers to the design method of comparing, selecting, optimizing and determining the technical system, parts and components and their interfaces based on the new construction system represented by assembly.

Q what design points should architecture major pay attention to when designing and selecting models? A as a leading specialty, architects should first give full play to the leading role of design in the whole residential design and selection, and earnestly coordinate all specialties to realize design and selection from the technical planning stage.

The formulation of type selection standard aims to lead the design units to implement standardized forward design, focus on solving the connection between the standardized design of precast buildings and the application of standardized components and parts, provide strong technical guidance for designers, and promote the design method of less specifications and more combinations.

At the four system levels, it is mainly to select the technical system and corresponding technologies and complete the integrated design.

However, at present, many design institutes still design according to the traditional idea first, and then split it into precast components.

There are a large number of non-standard parts and interfaces in the actual project, which has greatly affected the production and construction efficiency.

At the same time, we will work with the three guidelines to build a “1 + 3” standardized design and production system, which will fully open up the links of precast housing design, production and engineering construction, promote the coordinated development of the whole industrial chain, gradually change the customized and small-scale production mode to standardization and socialization by clarifying the specific dimensions of general components, and comprehensively improve the industrial production, design and construction efficiency of new buildings, Promote the standardization, scale and marketization of precast housing industry.

It effectively combines architectural design with component selection by expounding how to carry out the integrated design of four systems: structure, peripheral protection, interior decoration, equipment and pipeline through standardized components.

Reasonable structural system selection can effectively improve the degree of standardization of structural components.

Straight Anchor

It mainly solves the problems related to the connection between standardized components and front-end design from the perspective of positive system integration design.

The “basic provisions” have made in-depth provisions on the basic principles to be followed in design and selection, the main contents of design and selection, and the design of parts and their interfaces.

The design and type selection shall be led by the architecture specialty, cooperate with the relevant specialties such as structure, electromechanical and interior decoration, take the overall project as the object, comprehensively consider the internal and external constraints, and gradually complete the design of precast residence from shallow to deep through the selection of technical system and parts.

Recently, the industry standard “selection standard” has been released and will be officially implemented on April 1, 2022.

In order to implement the decision and deployment of the CPC Central Committee and the State Council on vigorously developing precast buildings and run the concept of standardization through the whole process of design, production, construction, decoration, operation and maintenance of precast construction projects, the standard and quota Department of the Ministry of housing and urban rural development focuses on building a “1 + 3” standardized design and production system, that is, preparing an industry standard, design and selection standard of precast houses (hereinafter referred to as “selection standard”) 3 dimensional guidelines for main components and parts (dimensional guidelines for main components of steel structure residence, dimensional guidelines for main components of precast concrete structure residence and dimensional guidelines for main components of precast decoration of residence).

“Architectural design” gives the general principles of architectural design, puts forward the design method of module and module combination, and puts forward the coordination method of plane and facade standardization and diversified design.

Today, Xiaozhu invited Yu Yinquan, the main drafter of the selection standard, the chief engineer of China architectural standards design and Research Institute Co., Ltd.

Q what does the selection standard mainly include? A the selection standard is divided into 8 chapters.

71 document of the general office of the State Council in 2016), precast houses have been widely used in China, and relevant technologies have made great progress.

It mainly includes three levels: design and selection at the four system levels, design and selection at the part and component level, and iterative optimization based on the relevant factors of production, construction and other construction links.