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Compared with modular houses, modular houses have the characteristics of spatial structural units, good mechanical performance, and are more economical in design. Since the top plates of modular houses and wall boards are integrally cast, there is no problem with the shelf length of the floor. The walls can be It is made thinner, although the inner wall is composed of two walls, but it is only a hollow wall, and the materials are still relatively less.

In the production of components, a modular component is a room, with fewer specifications and models; in the same room, the assembled large panels need to have inner wall panels, outer wall panels, and building panels. Several components are assembled to produce more specifications and models. In the construction and installation, the module is a three-dimensional component, and the hook can be stabilized. The connection generally only needs corner welding; while there are many large-scale components and many hanging times, it needs to be temporarily fixed with a support after being placed, and then the cast-in-place joint connection. Many processes. The modular components are large in size, heavy in weight, and require a large tonnage trailer. The crane is used for pulling and hoisting; the large plate components are small in size, light in weight, and small in trailers. The crane can be transported and hoisted.

Compared with the frame building, the modular structure uses a considerable amount of reinforced concrete in beams, columns, and floors. Its finished product is only a structural skeleton, and it also needs a lot of construction work such as wall building, plastering of internal and external walls, etc. ; The amount of modular structure reinforced concrete is equivalent to it, and it also works with corner columns and beams, which is economical and reasonable.

The comparative advantages of modular buildings and brick-concrete buildings. When building houses with modular components, more than 2/3 of the construction process can be completed in the factory, leaving only module assembly, a small amount of decoration, connecting pipelines, etc. to operate on site. About 80% of the work is not affected by the climate and is suitable for large-scale industrial production. The total labor force is small, and working conditions have improved. The construction period is about 1/2 shorter than other construction methods. The consumption of main materials is similar to or slightly lower than that of cast-in-place large formwork buildings.

However, the investment in prefabricated factories for modular components is relatively large. The load-bearing type of modular components: according to its static load characteristics, it is divided into load-bearing components and non-bearing components. Metal or wooden modular components are mostly used in one- or two-story houses or inlaid buildings with load-bearing skeletons. Plastic box components are only used for part of the house, such as kitchens, bathrooms, toilets, etc., or for hanging buildings. Reinforced concrete module components are widely used, and are commonly used in multiple and high-rise box component houses.

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