Foshan Steel system in public buildings, commercial construction, especially the use of landmark construction in full swing, but has been struggling in the field of home - the proportion of domestic steel shelter house built in less than 1%, while the proportion in developed countries at least 40%.
"Steel construction and containment system to match merchandise and supporting technologies yet to progress and improvement, which is a major problem restricting the development of domestic steel construction." Ministry of Housing Industrialization Promotion Director of Center home goods certification at Jing Liu Jiang pointed out that "residence in the area of steel in order to promote the need to shift the focus. "Director of the Office of housing to ensure that the standards and information technology at the Beijing 杨家骥 further emphasis at the meeting, steel industrial products, not people stay in the final product. "Steel shelter built out of steel should focus their research to meet the shelter needs of different types of systems, inductive supporting technology integration is the key."
Obstacles: supporting merchantability poor
About Steel Systems, a company principally engaged in the product development of real estate residence had China Real Estate News reporter admitted that steel has high strength, light weight, good seismic performance, construction speed and other advantages, which we all know. "But our current systems are concrete house developed system, if the use of steel, equivalent to the addition of a system, you need to consider the future use of two different types of methods to maintain the house, the late increase in operating costs, and every few years to conduct a maintenance of steel structures, how to calculate the cost? well as its robustness issues, preservation issues, fire issues are to be discussed. "developers of these concerns, it seems the steel itself, but it is a more complete product performance steel shelter system to decide.
"Steel bones just solve the problem of construction, the construction of a complete system integration of industrial chain, the supply of a complete product, but also supporting the collaboration of other home systems." Yangjia Ji said that the current steel production enterprises purely do to build production and processing units, construction units, their attention on the steel structure itself, there is no concern to the entire system residence.
In fact, the steel structure supporting the commodity is home residence built in a relatively independent unit, constitute an integral part of home construction, but also the use of carrier technologies. According to the main residence features steel parts, steel homes can be divided into three systems supporting commodity: containment system, including wall systems, roof, floors, doors, windows, etc.; new energy systems and equipment systems, including new energy systems, new ventilation system, radiant floor heating systems, drainage systems and other equipment; install full-fitting systems, including kitchen systems, plumbing systems, wall coating systems, decoration wood products.
"Lack of support and policy support, the lack of systematic and rational coordination and division of labor, the overall industrial development uncoordinated, making installation envelope-style steel shelter materials and inadequate facilities." Liu Jing Jiang pointed out that the most-mounted steel shelter system the problem is that the external walls of prominent envelope system. "Existing wall material properties and installation methods is difficult to meet the demand of steel in the insulation, ventilation, fire protection and durability aspects." In addition to the more traditional residence outside doors and windows systems, steel doors and windows Installation is much more cluttered home . Traditional home facades are mostly clay bricks or concrete, exterior windows can be fixed directly to the top of the external wall by bolts, and steel shelter wall materials are mostly lightweight materials (such as aerated concrete) or porous materials (eg concrete hollow blocks), can not be directly fixed, usually fixed through various forms of embedded parts buried flat or angle.
Supporting high-performance products, the need for coordination between the goods, which also led to costly stage steel residence. According 杨家骥 introduced, according to the Beijing Steel unit to ensure budgetary room to make use of the incremental cost per square meter of steel between 500 yuan to 700 yuan. "Compared with the traditional concrete structure, the increase is quite large."
Breakthrough: transfer from the support to fill the body
The only path is to enhance the quality of shelter needs in-depth study of the resident, steel shelter is no exception. Steel shelter for the short board currently facing, Yangjia Ji said: "The focus needs to shift from support to fill the body up." However, filling body construction also involves a number of complementary products and technologies, the priority is where to start. "In the steel construction goods sold, there may be a problem building envelope leaks, toilet leaks, energy-saving composite wall insulation, windows and other aspects of performance, but in the end what factors restricting the development of steel, it is necessary to clarify . "Yang Jiaji proposal, should the national level to identify key technology development direction of steel shelter from key research breakthroughs, but also to supporting the future development direction of the specified commodity business.
Meanwhile, with the continuous improvement of quality accommodation, supporting individual goods or technology has not independently effectively play a role. How to achieve cross-border consolidation? Deputy director of the Xiamen Construction and Administration of forest twigs introduction, the current residence of Xiamen is planning a modern industrial park, the park set up their headquarters area, PC project area, Steel project area, curtain wall project area, high strength and outside wall in the project area, and the supporting parts production display area, aggregate production and supply of reserve zones, according to "a garden multi-base" model of development constitutes to Hua Anji ground (steel, PC production base), roller base (steel production base), Lu-up the whole kitchen base installation of the construction-oriented industrial base.
For cross-border consolidation in the steel industry chain, Yang Jiaji analysts believe that in the future in the field of steel structure is not necessarily the top steel producers, is likely to be supporting commodity systems industry chain.
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