Research and development and practice of prefabricated housing design technology

Housing is an important part of people's livelihood, and having a place to live can satisfy people's yearning for a better life. At present, the houses in our country basically adopt concrete structures, and steel-structure houses lack mature design system and construction experience. Based on my country's national conditions (the world's largest steel production) and national policies (encouraging the development of prefabricated steel structures), focus on promoting the research and development of prefabricated steel structure housing technologies and the implementation of projects.

(1) Adapt to the steel structure system of the house.

The steel structure house in the new era has the following characteristics:

①The scale is small, so it is necessary to make full use of the space and increase the usable area as much as possible;

②People stay for a long time , in the design stage, the diversified needs of the residents in the whole life cycle of the residence should be considered, and the apartment type can be divided flexibly, which has the potential for later transformation;

③ The building quality is required to be high, the facade is visually transparent, and the interior is leak-free Leaky beams.

For the design of steel structure houses, not only the safety of the structure should be considered, but also the function and effect of the building, that is, the comfort of living. Therefore, it is a key technical difficulty to choose the steel structure system that matches the residence.

(2) External wall selection and connection node structure.

The prefabricated steel structure building is the integration of the steel structure system, the outer protection, the interior and the equipment system. The outer protection and other related supporting components determine the performance of the prefabricated house to a large extent. At present, my country's steel structure system and peripheral care system are relatively mature, and the common problem is the details of the connection structure with the two systems. Due to settlement, temperature strain, stress and other reasons, the product performance does not match, resulting in wall cracking, water leakage, poor sound insulation and other problems, affecting the overall quality of use, and further restricting the promotion of prefabricated steel structure houses. Therefore, it is a key technical difficulty to study the outer protective structure and related supporting design technology suitable for steel structure buildings.

(3) Supporting internal design and node design technology.

In traditional concrete houses, interior decoration professionals often intervene at a relatively low time point in the project, resulting in detailed processing that is not suitable for residential buildings. Especially for the new product of prefabricated steel structure house, there is a lack of mature design system and construction experience, how to consider the relationship between structure and interior, and comprehensively improve the use quality of prefabricated steel structure house. Therefore, it is a key technical difficulty to develop the internal design and node design technology of prefabricated steel structure houses.

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