The project adopts the construction technology of “cast steel structure + integrated modular system” to reduce carbon emissions in the whole process of production, transportation and construction, reduce environmental pollution, and practice the green and low-carbon concept.

After nearly five years of “hard work”, the whole industrial chain of precast buildings has taken shape in Haikou, and its demonstration and leading role has become increasingly prominent.

“Up to now, the processing base has a total of 11 steel structure component production lines, which meet the supply of precast components for key projects such as Hainan intangible cultural Heritage Exhibition Center.

How prosperous the development of precast buildings is, we can also be regarded as the ‘prophet of spring river water heating duck’.” Chenxingshun, who has worked for nearly a decade, has witnessed the joint growth of related industries from 0 to 1.

Expanding the “green” buildings from “taking root” to “flourishing”.

Precast buildings have brought more orders to the company and also provided more jobs for the society.” Chenxingshun, the person in charge of the site, is a native of Yunlong Town.

“It is suggested to introduce detailed rules for the supervision of production standardization and improve the quality management, evaluation and certification system.” “It should not be limited to production, but also consider the development of precast building R & D, consulting, testing, intelligent products, equipment manufacturing and other related industries, pay attention to cultivating weak industries, and promote the formation of a sound and complete industrial chain.” As one of the preparers of Hainan precast building industry development plan (2022-2030), Zhang Rui, vice president of Hainan Branch of China Construction Research Institute, believes that relevant industries should move from “manufacturing” to “intelligent manufacturing”, take the whole industry chain as the development direction and Tropical Architecture as the development feature, and climb to the middle and high end of the value chain of the industry chain.

On June 27, in the headquarters economic zone (ecological CBD) of Jiangdong new area, Haikou, the construction of the headquarters building of Bank of Hainan using the assembly technology is being accelerated.

The 1.5-level enterprise port in Jiangdong new area, Haikou, is bright at night.

It used to take two hours.

He told the reporter that since the introduction of cast steel structure processing lines in 2018, the company has achieved great strides in transformation and upgrading.

has neatly arranged plants that look spectacular in the sun.

The “green” buildings springing up like mushrooms are promoting the agglomeration and development of related industries.

According to the relevant person in charge of the Municipal Bureau of housing and urban rural development, in 2021, 98 projects in Haikou passed the review of the precast implementation scheme, with a precast building area of 8.058 million square meters.

Cranes lift raw materials one after another, and workers carry out submerged arc welding and other operations on steel components on the assembly line…

“Orders have been placed until September this year.

” Yangaiqi, the project manager of Dongzhai new residence phase II of the fifth company of China Construction Fourth Bureau, told the reporter, “now there is a precast construction factory at the door of our home, and we have more confidence in the timely delivery of the project.

The main components of Dongzhai new residence phase II project use precast building materials, and the assembly rate has reached more than 50%.

In the workshop of Jianhua building materials Hainan Co., Ltd., located in Yunlong Industrial Park, Haikou, workers carry laminated plates by crane.

In Yunlong Industrial Park, the nearly 200 mu precast steel structure processing base of Hainan Zheda Steel Structure Co., Ltd.

Including 2.4618 million square meters of government investment construction projects and 5.5962 million square meters of social investment construction projects.

In recent years, Haikou has encouraged precast construction enterprises to increase technological research, reduce production and operation costs and enhance product competitiveness.

Now it only takes one hour.” Chenxingshun said that the newly introduced domestic equipment is more efficient than the imported equipment in the past, and the operation and maintenance of workers are more simple.

The dust is less, the noise is less, and the construction site is more ‘beautiful’.” It is understood that compared with the traditional concrete structure, the use of precast concrete structure can reduce the consumption of materials and energy, effectively reduce construction waste, and promote the transformation and upgrading of the construction industry towards green and low-carbon modernization.

Recently, at the cast steel structure processing base located in Yunlong Industrial Park, Haikou, workers are processing long bar raw steel materials into steel components “building blocks” for building high-rise buildings.

Hongchanghou, the head of the prefabrication factory, is very impressed with this.

Lifting Pin Anchor

The Haikou precast factory of China Railway fourth Bureau, with an annual capacity of 50000 cubic meters, as the “first batch of precast building demonstration bases in Hainan Province”, has temporarily stopped production from “two shifts in busy hours” to the middle of June this year.

This year, it is planned to promote the precast building area to account for more than 80% of the new building area, and strive to complete the assessment goal ahead of schedule.

In recent years, Haikou has made great efforts to develop precast buildings, promote the optimization and upgrading of the construction industry, and basically realize the “do what you should do” of precast buildings.

In the past, precast buildings had to go to factories in Guangzhou and other places to order, and then come back by sea, which delayed the construction period and increased the transportation cost.

“Precast concrete structure buildings can be divided into partially assembled buildings and fully assembled buildings..

From January to May this year, the base completed an output of about 14000 tons, creating an output value of about 105million yuan.” The reporter learned that this year, four enterprises in Haikou intend to apply for the national precast construction production base.

“This is an all-in-one assembly submerged arc machine introduced last year.

“Raw materials and transportation costs have increased due to the impact of the epidemic, and the ex factory price of components has dropped from 2800 yuan / m3 last year to 2400 yuan / m3 today.” Hongchanghou said that the competition in the province’s precast construction manufacturing industry has entered a “white hot”, rising and falling, forcing the industry market players to improve quality and efficiency.

“The workforce of the base has grown from more than 100 to more than 400.

In the next step, Haikou will ensure the smooth and orderly development of the construction project by extending the incentive time limit for the precast building area and reducing the burden of the construction unit on the planning and construction application.