Main structural types of houses
Generally, the structural systems of multi-storey and high-rise buildings are divided into: mixed structure, frame structure, shear wall structure, frame-shear wall structure, frame-tube structure, tube-in-tube and multi-tube bundle tube structure, mega-frame structure and other types of structures.
Mixed structure.
Hybrid structure is the most commonly used structural form in multi-storey civil buildings. Its form means that the vertical components such as wall and foundation adopt masonry structure, and the horizontal components such as floor and roof adopt reinforced concrete beam-slab structure.
frame construction
Reinforced concrete beams and columns are organically combined to form a frame, which constitutes the stress and force transmission system of the structure. Usually, reinforced concrete beams and columns are only connected and bear vertical and horizontal loads. This structure is called frame structure system.
Shear wall structure.
The reinforced concrete longitudinal wall is connected with the building Gigan, which can bear great vertical and horizontal loads.
How to identify the subject quality in the sale of commercial housing is complicated, and developers will play a marginal role in the subject quality and non-subject quality, and refuse to deal with it according to the subject quality. In general, the so-called unqualified main structure includes three situations:
(a) the house has not been accepted before delivery;
(two) although it has passed the pre-delivery acceptance, it is unqualified.
According to the existing laws and regulations, before the house is put into use after completion, the construction unit shall organize the survey, design, construction and supervision parties to check and accept the project quality, and the qualified ones shall sign the quality certificate; And apply for planning, public security and fire protection, environmental protection departments to inspect the house, and issue approval documents or permission to use documents; Finally, the construction unit filed a record with the construction administrative department where the project is located, and obtained the record form for the completion and acceptance of the housing construction project.
Legal basis: Article 60 of the Building Law stipulates: "A building must ensure the quality of its foundation works and main structure within a reasonable service life.
When the construction project is completed, there shall be no quality defects such as leakage and cracking on the roof and wall surface; Construction enterprises should repair the quality defects that have been found. "