Browse Volume:34Author:adminNews Date:2017-12-13
The fabricated building is the development direction of the construction industry. Its green construction can achieve "four sections and one environmental protection", which will change the backward production mode of the traditional construction industry.
In the nineteen major reports, it is clear that "the whole Party and the whole country should carry out the concept of green development, form a green development mode and accelerate the green development". The State supports and develops green buildings with energy saving and environmental protection, in which the assembly building is the focus of development. The Ministry of housing and clear "13th Five-Year" during the 2020 National Assembly Building accounted for the proportion of new buildings to more than 15%, to encourage all regions to develop higher development goals. In Shenzhen, the proportion of assembled buildings in the city's new buildings is over 30%, and it is striving to reach 35%. The assembly building is the development direction of the modern construction industry, with high scientific and technological content and the development of the relationship innovation.
The four Central Construction Bureau, as the central enterprise, plays an exemplary role, and the assembly architecture is carried out to the actual project, and the assembly building is actively explored and developed. In the nineteenth China International hi tech achievement fair, Zhongjian four Bureau took part in the assembly construction project of Shenzhen Harbin Institute of Technology campus expansion project (hereinafter referred to as "Harbin Engineering University") to show the latest developments of fabricated building projects.
Figure: China Construction four Bureau Harbin Engineering University project adopts precast and fabricated construction. The whole process of design and construction is applied to BIM, VR and green construction technology. The precasting rate is 36.09% and the assembly rate is 66%.
Harbin Institute of technology is regarded as an experimental field of high-tech application. The four Bureau of Zhongjian University introduced to China economic information reporter that the Harbin University of technology has applied four core technologies and eight safeguards. The four key technologies are BIM professional deepening design technology, PC component technology, production and installation of integrated BIM management and construction technology, the professional with construction technology; eight safeguards for Aluminum Alloy formwork construction and construction measures, lightweight partition board standard safety precautions, high precision, integrated block outside climbing frame, temporary facilities integrated measures, two yuan, the construction of information integration platform to build wisdom. These are the new technologies that are respected in the construction process at present.
The BIM technology is the most important concern. BIM is the abbreviation of the building information model. It is a digitalized method. It is suitable for all stages of the project. It is known as a technological revolution in the construction industry, which can improve the efficiency of construction and save the cost of building. At present, BIM technology has become an important measure for fine operation management in the whole life cycle of construction industry, and has increasingly become an important way to speed up industrial integration and optimize the industrial chain ecosystem.
In order to better track and collect information about the production, transportation and installation of building components, RFID technology is applied in Harbin University, which is a non-contact automatic identification technology. In the construction of four precast concrete using RFID system, the RFID chip is embedded to the concrete surface at 10-15cm, collect information of the production of building components, acceptance, delivery, entry, lifting, component quality, effective tracking of the building components, and associated with the BIM database, to control the progress of the project, the production of component information feedback the relevant guidance. The RFID precast concrete system is independently developed by Zhongjian four Bureau. It realizes real-time monitoring of component production, transportation, installation and hoisting and operation and maintenance management.
N15 method is a self innovation application in Harbin project in the construction of four, the construction process of all split into 15 major processes, the main building in the middle of the floor two times to avoid the water treatment, construction of water will not flow into the floor, the upper structure construction and lower decoration construction. But the traditional construction process is many, wet work is more, can not do the floor closed water, can not carry on the fine decoration at the same time.
The four Bureau of China and construction paid attention to technological innovation and development, and actively promoted the work of production, learning and research. The four Bureau of China construction completed nearly 30 patents in Harbin Institute of technology, including 5 invention patents, 1 projects of Ministry of housing and technology, 1 local level methods, and 3 national core journals. Also with the Chongqing University, built in four innings of South China University of Technology, Harbin Institute of Technology, Hong Kong Polytech University and other famous universities, and signed the research and establishment of practice base of precast concrete structure construction technology, the domestic and foreign relevant experts and professors of instructing project, promote research with.
In addition, built in four innings in the nineteenth fair exhibition project, launched the VR experience. On the one hand, the experiencer can experience the molding effect of the related projects through VR before the construction project is not completely completed. On the other hand, the VR virtual reality technology can enhance the safety education for the staff concerned and improve the safety in the construction process.
The traditional architectural technology is extensive. Due to the serious waste of steel and cement and excessive water consumption, the construction site is often messy, and the dust pollution is serious. More importantly, the quality problems such as cracking and leakage in the construction process are more prominent. In view of these obvious drawbacks, as well as the requirements of energy saving and emission reduction, the transformation of the construction industry has become a trend.
Prefabricated construction is prefabricated parts parts factory production at the site assembly building, the whole process of standardization design, factory production, construction, decoration, integration of information management and intelligent application, can overcome the disadvantages of traditional building techniques, with stable quality, low energy consumption and pollution low, high production efficiency, reduce accidents, low labor intensity, good working conditions. In the process of the transformation and upgrading of China's construction industry, the development of assembly architecture has become an industry trend. The construction of the assembly type concrete structure was adopted in the construction of the construction of the assembly type concrete structure in the construction of the four Bureau of China construction. The precast rate of the component was 36.09%, and the site assembly rate was 66%. It is understood that this is a relatively high construction and assembly rate in China at present.
In the construction of four staff, in the construction of four projects hit the external walls, stairs, the tailgate was prefabricated in advance, deepen the drawings using BIM technology, component specifications need to the project for the calculation and measurement and sent to the factory, the factory prefabricated, production after the transportation construction the hoisting in place. In this process, the components of prefabricated factory site construction with no free plastering, wet work, construction conditions and quality than the traditional architectural style is much higher, and the construction site clean and tidy, reduce the amount of construction waste, reduce the noise and dust caused by environmental pollution.
According to "China economic information" reporter, the green construction of fabricated building can achieve "four sections and one environmental protection", which will change the backward production mode of traditional construction industry. To achieve the whole process of building a fully controllable prefabricated construction, in the quality of construction, such as leakage, poor accuracy can solve the common problem in the traditional way of building; prefabricated construction in progress, greatly reducing the construction period, also achieve the indoor decoration; in terms of cost, to achieve cost control through informatization in the process of building and digital technology.
Compared with the traditional architectural way, the advantage of the fabricated building is obvious. In the current situation of "green construction, energy saving and environmental protection" becoming the trend of development, the state has continuously issued relevant opinions and policies to support the development of the fabricated building. According to the State Council's opinions on Further Strengthening the management of urban planning and construction, it is pointed out that to develop new building methods, we should vigorously promote the fabricated buildings, reduce the pollution of construction waste and dust, shorten the construction period and improve the quality of the projects. Formulate design, construction and acceptance criteria for assembly building. To improve the standard of parts and components to realize the factory production of the parts of the Ministry of architecture. The construction enterprise should be encouraged to assemble and assemble the construction. Building a national assembly building production base. " Local governments continue to implement specific actions, to support the development of prefabricated construction, future prefabricated construction will become the main way of building construction.
China Construction four Bureau attaches great importance to the research and development of fabricated buildings. The Harbin Engineering University project has recently completed 1 national engineering construction standards CECS standard, "assembly concrete building engineering general contracting management standard", which is the first group standard of assembly. In the construction of four countries also undertake the "13th Five-Year" focus on the development of special subject of "urban construction operation safety control key technology", security control technology research of precast concrete structure. It is understood that in the construction of four as the Ministry of housing approved the establishment of the National Assembly building industry base, has prefabricated wall panels, stairs, balcony, Liang Zhu and other members of the factory "production line", completed the construction of nearly one million square meters of assembled demonstration projects in the construction site to build a house for building blocks building. In the construction of four of the "China economic information" said they will continue to encourage, to make a contribution for the National Assembly Building "13th Five-Year".
The article is reproduced:http://bbs.zhulong.com/102010_group_3000051/detail31284062