Earthquake-Resistant and Durable Prefabricated Houses
Earthquake-resistant and durable prefabricated houses boast good seismic performance, long durability, and unique construction features.
In terms of seismic performance: There are certain differences in the earthquake resistance of prefabricated panel houses. Generally, prefabricated panel houses can withstand earthquakes of around magnitude 6. Houses built before the 1980s, due to the lower construction standards at that time, can now withstand a maximum of intensity 6 earthquakes. Newly built prefabricated houses can achieve an earthquake resistance of intensity 7, but their overall seismic performance is lower than that of cast-in-place reinforced concrete houses. This is because prefabricated panels are like building blocks, with relatively poor integrity, and are prone to disintegration under earthquake action. However, by taking some reinforcement measures, their seismic performance can be effectively improved. For example, inserting steel frames or pouring concrete into walls can enhance wall stability; laying steel mesh at joints can increase the connection strength between components; installing seismic isolation bearings can reduce the transmission of earthquake energy to the superstructure; and using high-ductility cement for wall plastering can increase wall ductility. The comprehensive application of these measures can elevate the earthquake resistance to magnitude 7.
In terms of durability: The main body of prefabricated houses adopts a reinforced concrete structure, which is solid and reliable, with a quality guarantee period of up to 70 years. Reinforced concrete structures have high strength and durability, can withstand large loads and the erosion of various natural environments, providing reliable protection for the long-term use of houses.
In terms of features of prefabricated houses: Prefabricated houses, also known as prefabricated assembled buildings, are a form of construction where building components are industrially produced and assembled on-site. The main types include panel-assembled, box-assembled, and frame-assembled buildings, with technologies covering prefabricated concrete structures and steel structures, and components including prefabricated products such as beams, panels, walls, and columns. They have many advantages. For example, the construction process is like 'building blocks'. Prefabricated components are brought to the site for assembly in advance, resulting in fast construction speed. For instance, a prefabricated house in Henan can be 'built' in just 4 hours. They are environmentally friendly and energy-saving, reducing pollution during the construction process. They can also be reused, offering high flexibility. The cost is low, at around 300 yuan per square meter. They have a wide range of applications, suitable for residential buildings, dormitories, and office buildings, and the constructed houses can be up to 5 stories high.
