After years of demonstration and market cultivation, precast buildings have a considerable foundation in Hangzhou.

For members of the same quality, the bearing capacity of the steel structure is twice that of the concrete.

The steel structure can generally reduce one third of the deadweight of the building.

“Looking at the hospital structure, it can be found that the structure of the second phase of Jiande First Hospital is different from the traditional reinforced concrete structure.

Why should the project abandon the traditional construction method and use cast steel structure construction? “The advantage of precast construction is that it has a short construction period, is less constrained by climate conditions, can also reduce construction waste and dust pollution, save labor, and is an important means of” carbon peaking and carbon neutralization “in the construction field, as well as the general direction of China’s construction industrialization and industrialization development.” The relevant person in charge of the municipal construction management station said, The cast construction of steel structure adopted in the second phase of Jiande First People’s Hospital inherits the excellent gene of steel structure, and has natural advantages such as “light weight and high strength, labor saving, energy saving and environmental protection, and quality assurance”.

It aims to complete 70% of the decoration work by the end of this year, and is planned to be put into use in August 2024.

Source: Hangzhou Daily..

“The application of precast steel structure technology in the second phase of Jiande First People’s Hospital is another milestone in the development of precast buildings in our city, which is of great significance for promoting the development of precast buildings in Jiande.” The relevant person in charge of the municipal construction management station said that in the future, precast buildings will continue to play an important role in deepening the innovation and transformation of the construction industry, and by 2025, precast buildings will account for 35% of the new building area, 12 national and 30 provincial precast construction industrial bases were built, and 75 precast construction pilot demonstration projects were built.

It has a complete set of ‘steel tendons and iron bones’, and is a steel structure cast hospital made of precast steel members.” The relevant person in charge of the construction party introduced that the high-rise buildings above the ground of the project use steel frame support system, and the vertical load-bearing members use rectangular steel tube concrete, The assembly rate of the main steel structure is 100%, and the overall assembly rate is more than 70%.

After six months of construction, the steel structure building has stood tall.

The second phase of Jiande First People’s Hospital is just a microcosm of the large-scale development of Hangzhou’s precast buildings.

Since the pilot work of steel structure precast housing was carried out in 2019, relevant departments in Hangzhou have been focusing on exploring the replicable and promotable “Hangzhou model” of steel structure precast buildings to continuously improve the level of green construction.

Recently, as the last steel beam was slowly raised and successfully hoisted, the second phase of Jiande First People’s Hospital completed the main steel structure roof of the main building on schedule.

What is more worth mentioning is “saving time”.

The second phase project of Jiande First People’s Hospital was started in June last year.

The total building area of the project is 79900 square meters, and its main structure takes less than 6 months to grow from scratch, reducing the working hours by more than 30% compared with the traditional concrete structure.

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At the same time, steel members are precast in the factory, and large-scale and standardized operations ensure quality control, making the building more environmentally friendly and quality more guaranteed.