China Shipping Property (02669.HK) Zhongjian Huaneng (300425.SZ )–＞ ＞ China Construction [601668]
China Construction Group is committed to transforming and upgrading traditional construction with scientific and technological innovation, vigorously cultivating and developing new quality productivity, promoting the systematic and large-scale application of scientific and technological achievements of various innovative subjects in the construction industry, promoting the deep integration of scientific and technological innovation and industrial innovation in the direction of "productization, industrialization and marketization", striving to create a second growth curve of high-quality development and better serving the people’s yearning for a better life.
Recently, the list of the first batch of industrialization promotion products of China architecture was released, including 11 major products such as "Building a Good House". The third issue introduces the modular building products of "building a house like a car".
01 Zhongjian Hailong: MiC Modular Integrated Building
The modular integrated building (MiC) technology independently developed by China Construction International Group’s Zhongjian Hailong Technology Co., Ltd. (hereinafter referred to as "Zhongjian Hailong") breaks through the traditional construction method and realizes the industrial breakthrough of "building a house like a car". This technology divides architectural science into several functional modules in the design stage, completes the high-precision prefabrication of the whole process of structure, decoration and equipment in the factory, and then transports it to the site to quickly assemble and embed it into a complete building.
△ Building 8, Huapichang Hutong, Xicheng District, Beijing
As the lead unit of the National Key R&D Plan "Research and Application of Key Technologies in Modular Integrated Building Construction" in the Tenth Five-Year Plan, Zhongjian Hailong has built three mature product systems, namely concrete (C-MiC), steel structure (S-MiC) and X-expansion module application, covering multiple scenarios such as houses, schools, hospitals and hotels. For example, the first concrete modular high-rise building in China-Shenzhen Huazhang newly built affordable housing, five nearly 100-meter high-rise buildings only took one year to complete hardcover delivery; The first concrete modular "original demolition and original construction" project in China-the reconstruction project of No.8 building in Beijing Huapichang Hutong, achieved rejuvenation in three months, and was awarded "Best Practice Project of Beijing Urban Renewal".
Five core advantages help the construction of "good house"
Safe and durable:The industry-leading modular integrated building technology system, with structural performance equal to/equivalent to cast-in-place, fully meets the rigid safety requirements such as earthquake resistance and disaster prevention.
Healthy and comfortable:Before decoration, the indoor air quality is better than the health standard. The factory integrates integral bathroom, high-performance doors and windows, etc., and the air tightness of the building reaches Grade 8, and the sound insulation performance exceeds the three-star standard of green building.
Green and low carbon:In the whole life cycle, carbon emissions are reduced by 8.39%, waste emissions are reduced by 75%, material waste is reduced by 25%, and manpower is saved by 70%, which significantly reduces the consumption of water, land and energy.
Smart and convenient:With the support of digital tools in the whole process, the BIM model can be seamlessly connected with the intelligent operation and maintenance system, providing a visual digital base for later management.
Still quiet in the people:More than 70% of the working procedures are in front of the factory, the construction period is shortened by more than 60%, the construction interference is minimized, and quiet operation can be realized in downtown areas.
Cscec: ME-House modular building
△ME-House modular building intelligent production line
The ME-House modular building of China Construction Science and Technology Co., Ltd. is based on the box-type steel structure main body and factory integration technology, and realizes the high-precision prefabricated integration of enclosure system, electromechanical pipeline and interior. The building module units produced by the intelligent production line are quickly assembled by all bolts after arriving at the site, and green operation and maintenance are realized by relying on the energy and carbon management system, forming a rapid construction system with high integration of industrialization, intelligence and greening, and realizing end-to-end high-quality delivery of "from materials to components, from components to complete products".
ME-House achieved five technological breakthroughs in modular building innovation, won the first prize of 2024 Huaxia Construction Science and Technology Award, and was certified by IPA6, IPA20 and IPA30 of Hong Kong Buildings Department:
High-level breakthrough and reuse:Breaking through the core technology of 100-meter-high and detachable, the high-performance self-positioning grouting connection node was pioneered to improve structural safety and installation efficiency, and a modular building system with seismic grade of 8 degrees was built, and the construction period was shortened by 50%;
AI design, intelligence and efficiency:Self-developed AI design platform to realize the intelligent design of the whole process from three-dimensional model to production bill of materials, and the design efficiency is improved by 80%;
Flexible production line and intelligent production;Self-developed intelligent production line of steel modules with flexibility, high precision (±2mm) and high efficiency, with a substitution rate of 80%, with a daily output of 50 modules;
Digital twins and intelligent management;Through the building information model technology, the whole chain of design-production-construction is opened, and the project management efficiency is improved by 50%;
Green, low carbon, comfortable and energy-saving;The energy-saving rate can reach 83% by self-research and application of high-performance enclosure system and optimization of sound and heat insulation effect.
△ The first batch of modular buildings with more than 7 floors in China-Shenzhen Bay Area International Convention and Exhibition Hotel
ME-House modular building is widely used in five kinds of scenes, such as hospitals, schools, office buildings, residences and hotels. At present, it has successfully built the first batch of simple public housing in Hong Kong-SS M518 project, and the first batch of modular buildings with more than 7 floors in China-Shenzhen Bay Area International Convention and Exhibition Hotel.
Cscec: CMC steel-concrete modular building
CMC steel-concrete modular building products independently developed by China Construction Science and Technology have integrated the advantages of steel and concrete modular building structural systems, and achieved the goal that modular houses are safer, more durable, healthier and more comfortable, and less expensive.
△CMC steel-concrete modular intelligent building production line
The intelligent production line of CMC steel-concrete modular building, which produces CMC steel-concrete modular building products, is also independently developed by China Construction Science and Technology. It has realized the whole process of intelligent production from building raw materials, parts and components, wallboard to housing module units, the industrialization ratio has increased to 80%, the manufacturing accuracy has been compressed to millimeter level, reaching "one wall for 12 minutes, one room for 2 hours", the construction period has been shortened by 50%, and the construction waste has been reduced by 80%. The production line has been appraised by academicians and experts, reaching the international leading level.
△ The CMC module hoisted on the No.1 Innovation Building project of Beijing Daxing International Aviation Community is produced by Hebei Gaobeidian CMC product intelligent production line.
It takes only 2 hours to produce a module unit.
The steel consumption of CMC steel-concrete modular building products is 1.2 to 1.4 times that of traditional reinforced concrete buildings, and the seismic performance is better. The fire resistance limit exceeds 3 hours, and the external wall is integrally cast to form seamless anti-leakage, and the waterproof and sound insulation performance is significantly improved. The factory completed the assembly decoration of the module unit, and adopted the quick-loading pipeline system to avoid "opening the wall and drilling holes". If there is no formaldehyde, it will be installed immediately, and the maintenance cost will be reduced by 80%. CMC steel-concrete modular building products are suitable for residential, school, hotel, hospital and other scenes. (Corporate Culture Department, Technology and Design Management Department, China Shipping Group, China Construction Science and Technology, and China Construction Science and Technology contributed)