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In March 2022, the Ministry of housing and urban rural development issued the development plan for building energy efficiency and green buildings in the 14th five year plan, which proposed that by 2025, the proportion of precast buildings in new urban buildings in China should reach 30%, With the title of “green building planning release and accelerated promotion of precast buildings”, CCTV2 reported the highlights of precast construction technology of China Construction Second Engineering Bureau, and comprehensively demonstrated the construction advantages and industry development trend of precast buildings.

3 Institute, bid section II includes 11 main buildings, all of which are assembled with integral shear wall structure, the floors above the ground are precast laminated plates, the interior walls at the beginning of the fifth floor are precast walls, and the stairs above the ground are precast and installed.

Compared with the traditional building method, the construction technology of precast building has certain technical difficulty, but it also has absolute advantages.

For a long time, China Construction Second Engineering Bureau has also been committed to the technological innovation of precast construction and obtained a number of independent innovation achievements, making China’s precast construction reach the international leading level and leading the direction of urban construction and development in the future.

The construction process is like “building blocks” to assemble the house, which can achieve a prefabrication rate of 60% and an assembly rate of 50% as a whole.

3 yard project with a total construction area of 131100 square meters can be described as a “building block kingdom”.

In the interview, master Jia, who has been engaged in the construction industry for 16 years, said that he began to contact the assembly construction six years ago.

Inheriting the spirit of ingenuity, focusing on project quality, China Construction Second Engineering Bureau casts the city dream with green intelligent manufacturing, promotes the transformation and upgrading of the construction industry, and continues to move forward.

Before construction, it carries out fine simulation for each process and each step of standard floor hoisting, finds out and optimizes the possible dynamic interference, reduces the risk level of hoisting work, and ensures the accurate size of components on site and the scientific and orderly hoisting process.

It not only saves the amount of carpentry, but also greatly improves the work efficiency.

The project manager said that compared with the traditional construction methods, the construction period of precast buildings can be shortened by more than two months, the cost can be reduced by 3% – 5%, and the quality is more guaranteed because the main parts are processed in the factory.

In the main construction project of zhonghaijing No.

Precast buildings are processed and cast in factories, and then transported to the construction site for assembly.

Under the construction scheme with high assembly rate, the zhonghaijing No.

China Construction Second Engineering Bureau has successively undertaken many well-known PC buildings at home and abroad, such as the country’s largest precast public housing project – Shenzhen Changzhen public housing, the country’s largest precast Comprehensive Pipe Gallery Project – Mianyang pipe gallery PPP project, and accumulated rich assembly construction experience.

Changzhen public housing project Nanjing Dingjiazhuang phase II affordable housing project Nanjing Thomas experimental school Greenland Qingyang Caiqiao project 1#2# plot 4# plot Jiashan County peacock City Yue Long Wan (phase 1) project Shenzhen Tianji mansion project Beijing Daxing District Weishan Town Jin Maoyue project Zhuo Da perfume four phase Qiao County project sliding around.

Their income can be increased by more than 10% compared with the previous traditional construction method.

In the early stage of construction, the project department adopts BIM modeling technology to optimize the construction of cast components.

There are 6 types of “small building blocks” PC components, and the total number exceeds 15000.

The project faces the challenge and ensures accurate assembly.

This construction method not only significantly improves the working environment and is no longer dusty as in the past, but also reduces the intensity of work.