A light steel villa is not expensive at all
1.How much is the comprehensive cost of a light steel structure building?
The comprehensive cost of building of light steel structure at present, can go from two respects analysis, this does not contain those who decorate namely "clear water room" reach those who contain all to decorate and electric appliance configuration "finished product room". Because this kind of building builds a system to differ from traditional practice, a lot of pipelines that belong to essence to decorate a part are contained in advance and buried in the wall body, so both cannot categorically break up. In the first case, the current comprehensive cost is about 1500-2000 yuan/square meter. With the improvement of the industrial degree and the further optimization of the construction materials used, the estimated cost can be continuously reduced.
The second situation is even lower than the decoration cost in the current market. This kind of house increases the use area by about 10% - 15% compared with traditional buildings only, already see its economic benefit obviously.
We all know that the cost of steel structure housing is basically the same as the traditional concrete structure, but the use area can be 5% more, and the average carbon emission is about 35% lower, is the ideal choice for the development of the low-carbon economy.
Light steel structure residential refers to the steel structure as the load-bearing structure, with environmental protection, light-body, energy-saving materials as the envelope of the residential structure. At present, the proportion of steel structure construction in China's entire construction industry is less than 5%, while developed countries have reached more than 50%. The development space of residential steel structures in China is very large. It's getting more expensive to build a house these days. Why? Although the price of steel cement, the main material for building houses, has been repeated, the price has dropped significantly compared with previous years. It is the rise of artificial cost, far more than the range that building materials drop, bring about to build a house overall costs higher and higher.
2. How much is the comprehensive cost of steel mixed housing?
Rural areas are generally brick and concrete structures or frame structures of the house, it takes half a year to build time, more than 300 a day, small workers 150 a day, you say that the price of building a house can fall? Rising labor costs are a trend, so how to build houses in the future?
Suddenly remember foreigners' labor costs more expensive, why their house prices are not high? Finally, I understand why light steel structures are used in foreign countries. Expensive labor is the trend, the price of materials is also the trend, then use good materials, research and development of the construction speed of the prefabricated building system, a few days to get the house, the labor cost is saved, the overall cost will not come down.
As far as the residence is concerned, the function is the main dividing standard that a certain residence product differs from another residence product, and it is the essential thing that lies in the residence product with a certain physical form, that is, the applicability, security, economy, environment and so on shown by the residence product.
Applicability includes: barrier-free facilities, building decoration, ventilation, lighting, indoor sound insulation, earthquake resistance, thermal insulation, residential remodel, equipment and facilities configuration, residential plane, and space layout;
Safety includes: the harm of toxic and harmful substances, daily safety and preventive measures, gas and electrical equipment safety, building fire safety, building structure safety;
The economy includes: material saving, water saving, land saving, and energy-saving;
The environment includes: public service facilities, environmental health and outdoor noise, architectural modeling, green space and environmental layout, intelligent system, residential land, and planning.
The cost of construction refers to life cycle cost, that is, the total cost of the product during its life.
First, the weight of the house
The influence of structural dead weight on cost The house made of steel has light deadweight; Secondly, in the structural system of a light steel residence, the wall and floor are mostly made of light materials. Its main structure is about 30 percent lighter than other traditional materials. The superstructure adopts a light steel structure, the foundation load can be reduced by nearly 1/2, and then the ground endurance of the foundation is reduced, so the multi-story light steel structure residence generally adopts a shallow foundation. This will make foundation treatment easier, reduce transportation, and lower costs.
Two, the building area
Three residential buildings with different structures are analyzed as examples. Such as:
A 2-story residential building adopts a brick-concrete structure, with a construction area of about 400m2;
A 3 - story residential building uses a reinforced concrete structure with, a construction area of about 550 m2.
After calculation and analysis, the area utilization rate of the two different structures is 73% and 78.4% respectively. At present, the area utilization rate of light steel structures reaches above 92%.
If the average selling price of a light steel structure is 2000 yuan/m2, for the increased floor area, relative to the brick and concrete structure, the implicit income can be obtained is 136800 yuan; Relative to the reinforced concrete structure, the hidden income can be obtained is 97920 yuan.
Three, the construction period
1) As the construction period increases, workers will have to pay a certain amount of money every day for the time they work on site. Therefore, the increase in time will bring an increase in cost.
2) As the construction period increases and the loan repayment time is long, the total amount of the loan returned increases accordingly. From this point of view of economic benefits, shortening the construction period is more prominent than reducing the cost, it will bring considerable economic benefits for the owners.
