“In view of the tight construction period, the construction of the hospital should be separated from the construction links above” plus or minus zero “to the maximum extent.” Jiang Tao explained that “plus or minus zero” is the base level of the main project.

Jiang Tao revealed that after receiving the order to build Huoshen Mountain Hospital, China Construction Third Engineering Bureau needs to design, purchase and construct in parallel, and optimize and adjust according to the actual situation.

However, what the “cloud supervisor” can’t see is that most of the construction and production of the precast buildings are completed in the precast factory.

Tang Fen said that this mode of production is only suitable for small-scale factories and should deal with a small number of orders.

The biggest secret weapon in the construction of Huoshen Mountain and Leishen Mountain hospitals is the construction technology of industrial assembly buildings.

Since 2016, driven by national policies, the precast construction market has ushered in a period of rapid development, among which there are many enterprises with this as the main business model, such as Yuanda Residential (02163.

He revealed that it would take at least two years for a 30000 square meter building to be built with traditional concrete construction technology.

The construction of Huolei Shenshan Hospital adopts the whole-process BIM simulation construction technology to optimize the construction scheme, and deepens the design of the column spacing, width, clearance, equipment hanging, door and window positions, etc.

Although Huoshen Mountain Hospital and Leishen Mountain Hospital are emergency actions under the novel coronavirus epidemic, they reflect the possibility of breakthroughs in the construction process and speed of precast buildings to some extent.

Jiang Tao told the Economic Observer that the Huoshen Mountain Hospital is composed of protective units.

of the foundation drawings, leaving valuable time for subsequent construction.

Dozens of processes go hand in hand to accurately determine the time required for each step of the construction plan.

During the construction of Wuhan Huoshen Mountain and Leishen Mountain Hospital, the factory is far away from the construction site.

Because it coincides with the Spring Festival, many downstream construction factories have long been off work, and workers and material reserves are insufficient.

Data-driven is to solve the uncertainty of demand side.

The stress skeleton and partition board in each ward are processed in the factory and then directly transported to the site for installation according to the model, which is equivalent to the full assembly of the main structure and enclosure structure, “building a house like building blocks”.

HK), which was listed in Hong Kong in November 2019.

When the parts below “plus or minus zero”, such as site leveling and hardening, foundation engineering, pipe embedment, and construction of impervious membrane, are constructed on site, the structural parts above “plus or minus zero” are also constructed at the same time in major factories.

“The design scheme is always being adjusted”.

At the same time, the deviation is corrected according to the on-site conditions, and the orderly docking is carried out, “not wasting a minute or a second”.

Jiang Tao, a staff member of the Green Industry Investment Co., Ltd.

The on-site construction and the overall lifting are carried out alternately.

Tang Fen, president of Broad Residences, explained the operation mode of PC-CPS with “flexible manufacturing+data driven”.

Yuanda Residences is a company specialized in precast construction, adopting a PC-CPS intelligent manufacturing management system.

Rebar Chair

At present, the technology and cost control have not yet achieved complete customization and mass production.

However, what the “cloud supervisor” can’t see is that most of the construction and production of the precast buildings are completed in the precast factory.

Jiang Tao believes that building a hospital in 10 days mainly benefits from the flexibility of assembly technology.

The construction and manufacturing industry is a heavy asset industry, which requires a large amount of capital and production resources to produce a large number of parts in advance; Leasing and purchasing land for large storage yards also increase production costs.
.

Therefore, the construction party needs to first coordinate the component factories around Wuhan, count the specifications, models and quantities of the existing precast containers on the market, and then incorporate them into the design, so as to maximize the use of assembled industrialized finished products.

of China Construction Third Engineering Bureau, told the Economic Observer that its main business is precast construction.

Tang Fen believes that improving the versatility of the module from the front end is to create conditions for the multiple coordination of the back-end assembly.

Some enterprises are worried about the lack of product supply, so they will remove the mold after receiving the order, produce all the parts, and then install the mold in the next step; Or because the product line is insufficient, we can only batch produce a certain type of mold before proceeding with the production of the next type of mold.

Flexible manufacturing is to deal with the uncertainty of the product end.

The “infrastructure myth” of racing against time and fighting against the epidemic has once again pushed the assembly-type construction technology into people’s vision.

In order to realize the cooperation of multiple nodes by replacing people with systems, a complete set of digital systems is required.

Rationality and constructiveness During the construction of Wuhan Huoshen Mountain and Leishen Mountain Hospitals, everyone can view the scene of building module hoisting on the site through live broadcast on the Internet.

Chen Yueqin, an assembly building production workshop, took a picture of the Huoshen Mountain Hospital with a building area of 33900 square meters and 1000 beds, which was completed in 10 days, while the Huoshen Mountain Hospital with a building area of 79900 square meters and a capacity of 1600 beds was handed over in only 15 days.

For example, if the quantity of goods in one factory is not enough, the specifications of parts in other factories can also be flexibly combined, and the drawings can be adjusted according to the actual situation of the source of goods.

Therefore, Yuanda resident workers disassembled a dimension from the architectural design side down, from the overall disassembly to the module, and then combined diversified buildings through standardized modules.

In a short time, it is difficult for many precast component factories to customize and ship in large quantities.

The houses built by each real estate enterprise are not the same, and the factory production complexity is very high.

Wu Hongtao, secretary of the Party Committee of the First Company of China Construction Third Engineering Bureau, one of the contractors, said that behind this “Chinese speed” is the innovation of construction technology.

“The production is fast, and there is no place to put the products; the production is slow, and it affects the progress of the construction site.” Tang Fen said that the “inventory problem” is a common problem faced by most enterprises in production and operation, which is called “storage yard” in the precast construction industry.

If we follow the traditional construction method, design first and then purchase from the market, it may not be available on the market.

Everyone can view the scene of building module hoisting on the site through live broadcast on the network.

This time, the construction of the hospital should minimize the on-site operation of the main building’s aboveground works.