High cost of steel structure housing is a general understanding of the society, but also a major obstacle to its promotion. In Li Wenbins view, it should be comprehensive economic benefits as the evaluation index.
Comprehensive economic benefits that in the construction engineering structure materials for analysis and evaluation, in addition to considering the project direct investment, but also consider the due to the following factors: the weight of different materials produced by reducing the structure internal force caused by reduction and foundation cost decreased, due to the small section member and make the building area increased, due to the construction period is shortened to bring interest reduction and put into use in advance and create economic benefits.
In addition, there are a number of factors and the resulting economic benefits to be translated into economic units to use for the assessment, but the economic benefit and social benefit is very considerable, such as due to adoption of the steel structure of the structural seismic performance enhanced, flexible arrangement of the building, quality and improve the quality, environmental effects on peripheral small advantages.
Wuhan century homeland residential building No. 5 and No. 7 group as the research object, it can be seen that the steel frame concrete core tube system construction speed is quick, small occupied area of the component, but visual impression to the person is with a large number of steel. However, through study on life cycle assessment show that for steel can recycling use, the construction of residential unit area of the system energy consumption than concrete construction decline of 11.0%, per unit area of CO2 emissions and concrete scheme flat, than the concrete structure could save about 26.8% of mineral and natural resources (the above data only includes raw materials processing and building components manufacturing stage, excluding construction site), from the development of green, for the benefit of future perspective, steel structure residence is in line with the long-term interests, and is of practical interest.
Practice has proved that the Wuhan century home steel structure residential project has a remarkable comprehensive economic benefits, environmental benefits and social benefits, steel structure has long been into ordinary peoples homes.