Dandong Concrete Prefabricated Houses

There are indeed projects and practices related to concrete prefabricated houses in Dandong. Here is a detailed introduction:

I. Typical Project Cases
The Pearl Blue Bay Prefabricated Residential Project is a representative project of concrete prefabricated houses in the Dandong area. Building 3# is a single prefabricated structure that employs concrete prefabricated component technology. It has a scale of 17 floors above ground, a height of 52.15 meters, and a total construction area of 7,686.48 square meters. The project has an assembly rate of ≥50%, indicating that prefabricated components account for more than half of the building structure, aligning with the core characteristics of prefabricated buildings. The types of prefabricated components mainly include composite slabs and stair slabs: composite slabs combine prefabricated base plates with cast-in-place layers, offering both construction efficiency and structural integrity; stair slabs are standardized through factory prefabrication, reducing on-site wet work and enhancing construction safety and quality stability.

II. Local Enterprise Technical Support
Dandong Second Construction Engineering Company holds a Grade III qualification for concrete prefabricated components, demonstrating its professional capability in producing and installing prefabricated components. This qualification level typically allows the company to undertake prefabricated component projects of a certain scale and complexity, including component design, production, transportation, and on-site assembly. The presence of such enterprises provides technical support and industrial foundation for the promotion of concrete prefabricated houses in Dandong, enabling support for the entire process from project design to construction implementation.

III. Technical Advantages and Application Value
Concrete prefabricated houses significantly shorten on-site construction periods through factory-based production of prefabricated components, reducing time consumption in formwork use, concrete curing, and other processes. Meanwhile, standardized production modes help control component quality, minimize errors caused by human factors, and enhance overall building safety and durability. Additionally, the modular nature of prefabricated components facilitates later maintenance and renovation, aligning with the concepts of green building and sustainable development. Through practices in projects like Pearl Blue Bay, Dandong has preliminarily verified the feasibility of concrete prefabricated houses in high-rise residential areas, providing experience for future promotion.