China’s Prefabricated Houses Have Good Prospects

As early as 20 years ago, China’s construction industry began to adopt prefabricated assembly. However, due to the immature prefabricated homes china technology at that time, the Tangshan earthquake exposed the criticism of poor seismic performance. Later, the precast assembly in Beijing area was replaced by cast-in-situ concrete.

Japan has also experienced painful lessons from earthquake casualties, and the construction of modular houses has been popularized since the Kobe earthquake in 1995. At that time, Hyogo Prefecture, the epicenter of the earthquake, implemented the ” undead bird” plan, requiring buildings to survive an 8 – magnitude earthquake. The Japanese government also proposed the ” zero death” plan. Later, various advanced earthquake-proof methods such as lightweight materials with excellent earthquake-proof performance were widely used. In 2011, Japan suffered the largest earthquake in the history of human observation, accompanied by a huge tsunami. Facts have proved that Japanese buildings have withstood the test of a magnitude 9 earthquake.

From the global major earthquake disaster investigation, it can be found that more than 95 % of the casualties are caused by the damage or collapse of buildings, and the seismic performance of a house mainly depends on the load-bearing beams and columns.

It is understood that in Putian Integrated Housing’s residential project, the system of ” internal pouring and external hanging” is adopted. The load-bearing beams and columns are cast-in-situ made of traditional reinforced concrete, which can bear the internal force caused by various loads and effectively control the horizontal force of the structure. However, the PC bay window and prefabricated internal partition wall used are only accessory components, which will not affect the load-bearing capacity of the building. Moreover, the prefabricated parts and cast-in-situ parts are meshed with steel bars, which is also firm on the whole.

Moreover, before deciding to adopt this technology, Putian Integrated Housing invited specialized design institutes to do seismic experiments and tests to ensure that Putian’s building standards are higher than the current national standards.

Some experts in the industry questioned that it is difficult to deal with the waterproof problem of the gap between prefabricated members. In response, Putian Integrated Housing engineer explained that PC bay windows are connected by cast-in-place structure, prefabricated parts have embedded steel bars, and cast-in-place parts are engaged with each other, so-called ” gaps” have been covered by concrete liquid; Prefabricated interior walls are made of adhesive and have undergone joint treatment. As for toilets, they are also waterproof according to national standards, such as waterproof paint.

Zhejiang Putian Comprehensive Housing Co., Ltd. ( also known as ” PTH” ) has been committed to a one-stop solution for low-rise prefabricated housing. Services range from architectural design, production, storage and transportation to installation instructions and after-sales services.

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