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By Frbiz Tian
Residential building land-efficient housing construction in China’s future direction, and the development of steel structure residential building is to solve a high-energy building effective way. Green building materials and energy saving facilities, maximizing the use of available space, are the advantages of steel structure residential building. Implementation of factory production, and promote the industrialization of residential steel buildings, has a broad market prospect.
Housing construction in the energy, land, water and materials is so important that it not only to the issue of domestic energy consumption is also related to the earth rational use of limited resources. At present, China nearly 40 billion square meters of existing buildings, 99% are high-energy buildings; each year nearly 2 billion square meters new building in 95% of building energy consumption is still high, its energy consumption per unit area of about 28%, plus materials production of energy, the energy consumption for building energy consumption accounts for 40% of the total community.
Not difficult to see from these data, the construction industry is a high energy consumption industries. If saving energy and building energy strongly promote the economic interests of their community and use the earth’s resources will have positive effects.Steel housing – high efficiency green building green building known as eliminate the production of steel for residential and other building materials sand lime brick damage to the environment and the impact of construction waste, construction noise is reduced to a minimum, seismic performance high, alteration and demolition easier, materials recycling and re-utilization is high, is the harmony between man and nature for sustainable development ‘green industry’.
Energy-saving light steel structure residential development trends in China and prospects, according to statistics, steel residential applications are very common in developed countries, reaching a total construction area of more than 40%%. The Chinese steel housing still in its infancy, although has made nearly 300 million square meters of building test, but the overall level of development is not high, generally remain in the place of traditional steel structure system plus the structure of boards and block wall system stage, not a substantive breakthrough.
In particular, the domestic steel housing industry R & D units of enterprises, but do not often focus on a certain part of the steel structure, steel structure residential real systematic development of industrial enterprises and make as few Hangxiao. The company needs the entire steel structure house, floor boards, wall to stop supporting R & D and industrialization. The company’s technology staff that if only a given part is steel, other parts are still using the traditional concrete and brick , then, not only can not the most optimal performance of the house, and works Zaojia not low.
It is understood that, as early as 2003, formally launched Hangxiao more residential high-rise steel structure system of sets, while the former Ministry of Construction in 2004 assumed the scientific and technological project “Development of new steel housing and industry” and by the Zhejiang University, Fuzhou University, Tongji University, Xi’an University of Architecture and Technology, the state fixed fire extinguishing systems and fire-resistant components of Quality Supervision and Inspection Center, the National Building Material Test Center and other famous universities and research institutes have on the structural members, connections, three plate system for more than 50 Performance testing and test items, so far has received the patent for invention and utility model over 30.
Steel housing – the refinement of environmentally friendly residential construction steel structure itself is a refinement of environmentally friendly building. A 24-story building, with concrete construction, the pillar side length 1 m; use of steel construction, the safety standards under the premise of optimizing and fine design, the pillar side length of 0.5 meters, the cross section only one-fourth of the former. In the optimization space, lower cost, the latter are superior to the former.
In the steel structure design, designers through detailed design, in the premise of safety, to optimize re-optimization, while considering the safety factor, but also focus on the economic environment, to achieve beautiful, safe and economical combination of the three best.
In accordance with the conventional model and the means to build steel homes, the Department does not embody excellence, build quality project no. The original steel structure is box column column, by the four steel welded together. Hangxiao upgrading of existing equipment, the production side to a thick steel plate rolling Sprayed directly control only one welding seam, loading and safety standards greatly improved over the former.
In addition, the structure of the enterprise used in all H-beam automatic production line to minimize manual production, to be a light steel structure residential structure with high precision and production automation. Enterprise standard higher than the national standard. In the production of the production process, Hangxiao strictly IS09000 standards of product by the process and quality control to ensure products meet the national standard level of 100 percent. Installation process is developed in detail, demanding specifications and standards.
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