How long does a reinforced concrete house last?

It is 50 years old for general civil buildings and 80 years or more for large or important buildings.

The service life should be based on the specific situation, first of all, the design standard, the general civil building is 50 years, the reinforced concrete structure is 80 years or more for large or more important buildings, of course, its service life will be greater than the design life.

If the natural life is closely related to the characteristics of concrete materials, structural design, and the influence of natural conditions, its life is relatively not very long, mainly due to the defects that will occur after a long construction time, such as the reduction of the protection of concrete cracking on the steel bar, resulting in the acceleration of damage, so that the life is greatly reduced, and there is natural erosion and weathering, but its service life is definitely greater than the design life.

If there is later maintenance, those defects can be remedied, its service life will be greatly improved, the building will be regularly inspected, found hidden dangers must be dealt with a certain amount of technology, early detection and early treatment, so that the life of the building will be greatly improved.

The service life of a dwelling refers to the number of years that a dwelling can maintain normal use under physical wear and tear, and is determined by the structure and quality of the dwelling. The depreciation life of a dwelling refers to the number of years of transfer of the value of the dwelling, which is determined by the socio-economic conditions in the process of use, and is also called the economic lifespan. The useful life of a dwelling is generally greater than the depreciation life.

Design requirements for reinforced concrete structures

The design and construction of reinforced concrete structures revolve around the standards of industrialization and practical considerations, both of which have slowly developed with the experience and research accumulated in industrialization. While new methods, production processes, and construction techniques are constantly being created, building materials are also steadily developing.

In some ways, the standards of industrialization generally reflect the accepted ideas and practices that are carried out in accordance with the norms of construction. However, the specification usually speaks of certain minimum requirements, not the highest requirements. If you expect more than just the minimum, then meeting the bare minimum is not your ideal goal.

The above content refers to: Encyclopedia - Reinforced Concrete Structure.

Reinforced concrete structure.

The buildings are divided into different specifications, and we generally see the structural architecture of ordinary houses, which have a design life of 50 years, but theoretically it is no problem to live for 70 years. If it were not manually demolished, such a house would have existed for thousands of years.

Reinforced concrete is almost equivalent to artificial stone, as long as it has not suffered from serious natural disasters such as **.

Coupled with the usual good maintenance, reinforced concrete buildings can be used for a longer period of time.

Laws relating to property rights.

Article 359 of the Civil Code The right to use land for residential construction.

If the term expires, it will be automatically renewed. The payment or reduction of renewal fees shall be in accordance with laws and administrative regulations.

regulations. The renewal of the right to use land for non-residential construction after the expiration of the term shall be handled in accordance with the provisions of law. If there is an agreement on the ownership of houses and other immovable properties on the land, it shall be in accordance with the agreement; Where there is no agreement or the agreement is not clear, it is to be handled in accordance with the provisions of laws and administrative regulations.

Article 360: Where the right to use construction land is extinguished, the transferor shall promptly go through the process of deregistration. The registration authority shall withdraw the certificate of ownership.

The technology of the fifties, the materials of the fifties, the Wuhan Yangtze River Bridge has been built and used for nearly seventy years, and it has been overloaded. The pier has not been destroyed after being hit eighty times, and it continues to be overloaded, and it can be used for another 100 years. It is said that a house with a reinforced concrete structure can only be used for fifty years, unless it is a tofu slag project.

The design life of permanent construction works is defined at 50 years (except for a very few countries and the most important 100 years). This is the GB50068-2010 "Unified Standard for the Reliability Design of Building Structures" that says "the probability of completing the intended function of the structure within the specified time and under the specified conditions." at the specified time.

Therefore, the qualified targets of design, construction, supervision and other standard acceptance correspond to 50 years. Unless non-conforming products or temporary works.