The first prefabricated steel‑frame residential project in Keqiao District—Building 112 of Jishan Shengda Jinfu—has topped out ahead of schedule.
Release Date:
2021-12-21 10:40
12 10:00 PM on the 16th of the month ， With the Jishan Shengda Jinfu Project, Building 112# Building With the installation of the final steel beam now complete, the first high-rise residential building in Keqiao District to employ Yuegong’s proprietary “bolt‑through multi‑cavity steel‑tube concrete seismic wall steel‑structure system” (hereafter referred to as the “bolt‑tube concrete system”) has reached topping-out ahead of schedule, marking the successful completion of a key construction milestone.
Building No. 112, Shengda Jinfu Project
Visualizations of the Shengda Jinfu Project
The Jishan Shengda Jinfu project comprises 22 high-rise residential towers, 89 townhouse villas, and one building dedicated to elderly care services. Among these, Buildings 106 (33 stories, 98.8 m in height), 107 (30 stories, 90.6 m), 108 (30 stories, 90.6 m), and 112 (26 stories, 79.2 m) adopt Zhejiang Yuegong’s “bolt‑tube concrete system” for their main structural framework. As the first pilot project in Keqiao District to implement a steel‑structure residential construction system, it has attracted close attention from local government authorities, investors, and the general contractor. From the outset, the company designated the Jishan Shengda Jinfu project as a key initiative for 2021, assembling an elite project management team and allocating top‑tier resources and technical support. Led by General Manager Hua Yuwu, a comprehensive implementation plan was meticulously developed—covering detailed design, procurement and fabrication, transportation and installation, as well as organizational coordination—demanding extraordinary effort to ensure the successful deployment of the Yuegong “bolt‑tube concrete system.” A Party-member task force was also established for the Jishan project, fully leveraging the exemplary role of Party members through selfless dedication, extended working hours, and relentless perseverance. By overcoming numerous challenges and adverse conditions, the team not only met the project schedule ahead of time but also gained invaluable practical experience with this innovative system.
Further Reading on the Yuegong Green Prefabricated Steel-Structure Residential System
- The technical level of Yuegong Green’s prefabricated steel‑structure residential buildings has reached the “international advanced standard.”
In the field of prefabricated construction and related areas, Yuegong holds more than 170 patented technologies, including proprietary systems such as the bolt‑tube concrete system, the precast concrete shear wall structural system, the precast concrete panel‑type structural system, the steel frame–embedded wall structural system, the aluminum alloy shear wall structural system, an integrated smart three‑dimensional parking equipment system, tunnel segment reinforcement technology for subway tunnels, and a complete set of technologies for installing stairways to enable same‑level access.
Zhejiang Yuegong, in collaboration with Zhejiang University and institutions such as Timoshenko, has developed a steel‑structure residential system featuring a through‑bolt multi‑chamber steel‑tube concrete seismic wall, which is protected by Yuegong’s proprietary intellectual property rights (hereinafter referred to as “bolt”). - “Pipe Concrete System” in 2019 year 11 month 16 On that day, the Zhejiang Provincial Technology Broker Association convened an expert review panel comprising renowned experts and professors from Tsinghua University, Zhejiang University, and other institutions. At the review meeting, the experts unanimously agreed that the scientific and technological achievement had reached an “internationally advanced level.” 2021 year 5 month 29 Day, "plug" - The “Pipe Concrete System” was awarded the Second Prize of the Science and Technology Award by the China Association for Metal Structures in Construction.
- Main Technical Features of the Yuegong Green Prefabricated Steel-Structure Residential System
( 1 ) First proposed “thrombus” - The concept of “tube-in-concrete shear walls.” By incorporating wall segments of various configurations, this approach achieves an organic integration of three key objectives: flexible building layout, interior spaces free of protruding steel structural elements, and rational load distribution, while enabling the prefabrication and modular assembly of components.
( 2 ) "栓" - The “bolt” in the “pipe concrete system” - The “steel‑tube reinforced concrete shear wall” employs wall segments fabricated by assembling and welding steel tubes, ultra‑short‑side cold‑formed channel sections, and through‑bolts. Finite element analysis and experimental verification demonstrate that the component exhibits excellent load‑bearing performance, is easy to fabricate, reduces material consumption and fabrication costs, and achieves a higher degree of standardization.
( 3 ) The “bolt–tube concrete system” can achieve the realization of a fully prefabricated building system.
( 4 ) "栓" - The prefabricated floor deck used in the “pipe‑concrete system” is manufactured mechanically, which ensures uniform rebar spacing and consistent concrete cover thickness, thereby enhancing the construction quality of the floor slabs.
( 5 ) "栓" - The prefabricated wall system employed in the “Guan Concrete System” increases usable floor space, reduces foundation costs, shortens construction timelines, and lowers heating and air-conditioning expenses, thereby achieving energy‑saving benefits.
Application Case: EPC General Contracting Project for Plots 3–5 in the Central Commercial and Residential District of Paojiang New Area
- Input–Output Analysis and Cost Analysis of the Yuegong Green Prefabricated Steel-Structure Residential System in Engineering Applications
In the “bolt–tube concrete system,” the steel‑structure portion of the seismic wall is easy to fabricate, consisting primarily of rectangular steel tubes and ultra‑short‑leg cold‑formed channel sections. The equipment for producing these ultra‑short‑leg cold‑formed channels is low‑cost and simple to operate, and they can be cut to length according to the specific requirements of the project; “bolt” - The steel‑structure components of the “tube‑in‑concrete seismic wall” are fabricated using an integrated assembly‑welding machine, which features simple welding equipment, convenient operation, high welding efficiency, and minimal weld distortion. All structural members can be manufactured in a standard production facility by simply loading them into the integrated assembly‑welding machine and other relevant equipment.
In practical engineering applications, the on-site installation technology is mature and highly efficient. Prefabricated, modular construction significantly reduces on-site labor; for two buildings, a total of just eight installers are required, with an average of one floor completed in 3 to 5 days. This approach delivers rapid construction, shortens the project schedule, generates no waste on site, minimizes environmental impact, facilitates easy management, and supports a high degree of industrialization.
Related News
Copyright © Yuegong Holding Group Co., Ltd.Website Development: China Enterprise Dynamics Shaoxing