Technical features: (1) The standardized visual modular building system is the functional space to be built. The design is divided into several standardized "hexahedral space modules", the size is suitable for transportation, and the design process is standardized, but the structure of the apartment is flexible and diverse, and it is not limited by the shape of the facade. (2) The factory visual space modules for building parts production are all composed of a series of two-dimensional planar components. All two-dimensional components are assembled into space modules through the advanced production line and strict production and quality monitoring system of the module assembly plant. (3) Realizing on-site construction and assembly The visual module building system is based on factory production, and the building modules are transported to the site for assembly.
Main advantages: (1) complete industrialization: more than 85% of the main buildings including fine decoration are completed in the factory. (2) High-rise buildings can be built: buildings with higher floors can be built. The most cost-effective market is finely decorated houses below 100 meters, which is suitable for the mainstream housing market. (3) Steel-concrete structure: it can be flexibly combined with the traditional cast-in-place concrete construction method to solve the construction needs of long-span space; Widely used in residential buildings, office buildings, hotels and so on. In particular, the affordable housing and finely decorated housing markets are the main markets. (4) Special-shaped module: Special-shaped module can be used to meet the needs of personalized design of apartment and facade.
(5) High building quality: environmental protection, energy saving, sound insulation and other indicators have reached the European A-level (the world's top) standards, and they are safe, environmentally friendly, energy-saving and fully functional; Strong earthquake and disaster resistance. The building quality is high and the design life of the building is 70 years. (6) Environmental protection and energy saving: compared with reinforced concrete structure, it saves more than 80% of concrete; On-site construction saves electricity by 70%, water by 70%, steel 15% or more, construction waste by 85% and construction waste by 95%. (7) High cost performance: the construction price has a competitive advantage. The comprehensive cost of modular residential buildings is more competitive than traditional construction methods; The higher the degree of fine decoration, the more the module construction technology can reflect the superiority of cost performance. (8) Mature patented technology: The company has a number of patents including international invention patents, and the proprietary technology includes systematic links from design to manufacturing, construction and acceptance. The enterprise management and continuous research and development are in line with international standards; The complete construction system from design, manufacturing, construction to acceptance occupies the commanding heights of the industry.
2 modular building system construction process
(1) module engineering design; (2) procurement of module raw materials; (3) pouring the foundation and core tube of the modular building system; (4) module processing and manufacturing; (5) Modular transportation; (6) module field assembly; (7) Completion acceptance of modular buildings.
3 the significance of new technology
(1) The construction industry is one of the largest industries. Coupled with supporting concepts such as building materials industry, service industry and modular urban complex, the project is highly radioactive. Even if it only accounts for a few percent of the market, there are hundreds of billions and trillions of output values. (2) Agglomeration effect: the agglomeration effect of R&D supporting building materials, logistics, industrial worker training, financial supporting services and other construction industry chains. (3) Market demand data: Taking Britain as an example, the market share of industrialized housing in construction is about 20%, and it is developing rapidly at a rate of more than 70% every year. This proportion is less than 1% in China, but it is developing rapidly, far exceeding the international average level and speed. (4) Domestic initiative: this technical system has the highest industrialization rate in the field of industrialized housing. (5) Leading technology: This technology has a leading position in the same industry in the world.
(6) Building industry: The business model under the new technology system can be designed and planned according to the concept of modular new city, which will drive the overall development of upstream and downstream industrial chains. (7) Radiation and growth of business development: the construction market is huge, and many industries such as supporting building materials, logistics, industrial worker training and financial supporting services are simultaneously condensed. Its successful operation will rapidly promote the development of hundreds of billions and trillions of industrialized housing industries. (8) Involving the national standard: it is a complete construction system from design to manufacture, erection to acceptance, which can completely replace the traditional architectural mode. It will become an important institutional basis for China's national standard for fabricated steel structure housing. (9) The starting point of the project is high: the project is implemented under the direct participation and guidance of the Science and Technology Committee of the Ministry of Housing and Urban-Rural Development, the Science and Technology Development Center of the Ministry of Housing and Urban-Rural Development and the Science and Technology Development Promotion Center of Jiangsu Province. The cooperative units include China Institute of Architectural Design and Research, National Residential Engineering Research Center, China Institute of Architectural Science, Shenzhen Innovation Investment Co., Ltd., Tsinghua University and other domestic first-class professional institutions and their core executives. (10) Core competitiveness: In the process of housing industrialization and urbanization, the bottleneck encountered is that there is no support of structural system, and new materials and technologies are added to traditional technologies. At present, the technical system owned by the company has the characteristics of breakthrough innovation, occupying the commanding heights of the industry and having strong core competitiveness.
4 development situation
In today's increasingly scarce resources, environmental protection and energy conservation are advocated everywhere, modular building is the inevitable trend of the development of the construction industry, and it is also the direction strongly encouraged and supported by government policies. Premier Li Keqiang pointed out that the greatest development potential of China in the future lies in urbanization. The acceleration of urbanization is in the critical period of modernization, but the development model of construction industry, as an important carrier of urbanization, is still relatively extensive, and governments at all levels are looking for a way out: combing technology, grasping demonstration, creating models and exploring management ideas and methods. China municipal government put forward the green action plan in the document 1 3 of 20 13, and its main contents are as follows: The plan requires the government to fully implement the green building standards from 20 14, and will study and establish the certification system of green building materials, and encourage new houses to be decorated in place or adopt menu style.
Program requirements: firmly grasp the important strategic opportunity period of urbanization and new rural construction, establish the concept of life cycle, comprehensively promote green building action from policies and regulations, institutional mechanisms, planning and design, standards and norms, technology promotion, construction and operation, industrial support, etc., and accelerate the construction of a resource-saving and environment-friendly society. Main objectives of the plan: It is proposed that the mandatory energy-saving standards will be strictly implemented for new urban buildings during the Twelfth Five-Year Plan period, and the proportion of green buildings in new urban buildings will reach 20% in 20 1 100 million square meters. Program requirements: study and establish green building materials certification system, strengthen supervision and inspection of building materials quality, and organize green building materials industrialization demonstration. At the same time, all residential buildings are required to be fully renovated, and new residential buildings are encouraged to be decorated in place or in a menu style.
5 green building industry new city
"Green Building Industry New Town": Modular building is like an aircraft carrier, which constructs a joint industrial chain from raw materials, building materials, construction, supporting services and deep processing of industrial/commercial/real estate developers, which is suitable for urbanization of small and medium-sized cities and industrial workers to live and work in peace and contentment. Just like Iron and Steel City, Automobile City and Modular Building Industrial City, it will be a sunrise model of China Economic Development Zone, which is pragmatic and innovative, with strong reproducibility, and investment attraction will focus more on the main platform, with clear objectives and obvious advantages. Modular building will be a larger industry than automobile manufacturing, and it is a sunrise industry, which is pragmatic, innovative and reproducible, and the planning of "theme industry new city" is more scale and reasonable. In the future, we can even integrate surplus industries such as steel and major equipment. Housing industrialization is the dream of the construction industry, and urbanization is the pace of the times. It is a historical ship and a systematic plan to carry out new urbanization in the way of housing industrialization. Any individual, enterprise, institution and first-level government are struggling to move forward, but the huge demand of society is uniting everyone in Zhenjiang and opening the curtain of the historical drama of modular architecture.
6 China's first modular building technology application demonstration project-Zhenjiang Gangnan Road affordable housing project
(1) Building name: Gangnan Road Public Rental Housing Community, Zhenjiang New District (2) Construction unit: Zhenjiang New District Affordable Housing Construction and Development Co., Ltd. (3) Design unit: China Architectural Design and Research Institute (4) Supervision unit: Zhenjiang Xinhua Engineering Construction Supervision Co., Ltd. (5) Construction location: this project is located in the East New District of Zhenjiang City, bordering Gangnan Road in the south and planning Fengqi Road in the east. (6) Engineering features: This project has eighteen floors above ground and two floors underground. Building height (from outdoor ground to parapet top): 54m+1.50m+1.00m = 56.50m. Total construction area: 134500m2 (calculated floor area ratio: 96000m2), including underground construction area of 38500m2 and aboveground construction area of 96500m2. (7) Modular core tube system is adopted in this project, and the construction is carried out at the site and the factory at the same time. Complete the construction of underground garage, main underground second floor, underground first floor and main core tube on the ground. Except for the upper part, the main buildings on the ground are modules built by factories. After the construction is completed, construction will be carried out around the core tube at the site to complete the insulation and external decorative surface construction of the whole building.
The modules are fixed horizontally and vertically, connected with the core tube horizontally, and the load-bearing walls are aligned up and down. Each apartment consists of 2-3 modules, each module consists of concrete floor, steel dense column wall and suspended ceiling truss, and the modules are separated into different rooms by non-load-bearing walls. The seismic fortification intensity of this project is 7.5 degrees, the design service life is 70 years, and the fire resistance rating of the building project is Grade II. (8) Deadlines 20 14, 10, 15, No.4 site has been built, No.5 building has been built to the fifth floor, and No.8 building has been built to the seventh floor. It is proved by indisputable facts that in less than 1 hour, under the guidance of engineers, five workers and technicians can complete the hoisting of a module and a floor. The construction site is clean and tidy, there is no noise, no scaffolding is needed, the working surface is small, the working environment is clean and simple, safe and environmentally friendly, and there is no crowd tactics. Low labor intensity and high mechanization rate.
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