2025-01-09    119

　　From the perspective of labor costs, steel-framed villas are more economical than traditional constructions. The construction duration is only one-fifth of that required for traditional buildings, and due to the lightweight construction materials used, there is no need for heavy equipment, significantly reducing the labor intensity for workers during the construction process. Next, let's analyze the costs of standard steel-framed villas from several aspects.

　　The prefabricated light steel cost of steel-framed villas can be calculated based on square footage. For a 300-square-meter house, the steel usage is approximately 40-50 kg/m², which translates to 10-13 tons, with some wastage. Including processing fees, the average cost per ton is around ten thousand yuan. In other words, a prefabricated light steel structurecan be achieved with a budget of 90,000 to 120,000 yuan. The steel mentioned here is Q235 or Q345 steel, with double-sided hot-dip galvanized coating exceeding 190g. Only after 40 kg/m² can it be considered a steel-framed residence.

　　In terms of the walls and roofs of steel-framed villas, from an aesthetic standpoint, due to the characteristics of prefabricated light steel, the walls, eaves, and exterior walls can achieve considerable flexibility, with various styles to choose from, such as Chinese, European, and Western. However, the more perfect the design, the higher the construction and arrangement costs, which can greatly affect the total price of the residence. In terms of appearance, the exterior walls can be painted with lower-cost coatings or with higher-quality materials that imitate the appearance of stone, wood, red brick, silicified wood, etc., but these come with higher costs.

　　Roof tiles can be selected from ceramic, cement, metal, and asphalt tiles, with varying costs depending on the region. The insulation, heat insulation, and waterproofing materials for exterior walls and roofs will differ between the north and south, also affecting the total price. Interior walls, filling materials, functional boards, etc., will generally interfere with the overall cost standards.

　　The interior decoration of steel-framed villas varies according to individual needs, ranging from hundreds to tens of thousands of yuan in cost.

　　The basic cost of steel-framed villas involves building a foundation to ensure that the structure will not collapse in geological disasters, which requires proper foundation handling. The labor costs for setting up steel-framed villas are lower in the central and eastern regions compared to the western regions. Additionally, hiring local workers will be based on local salary rates. What factors interfere with the cost standards of steel-framed villas?

　　Building height. According to current demands, every additional 10 cm in height increases costs by 2% to 3%.

　　Crane tonnage. Choosing too large a tonnage will result in machinery waste, while a smaller tonnage may not meet requirements. Costs will vary accordingly.

　　Envelope structures such as doors, windows, and exterior walls.

　　Classification of the local building framework, including the construction time, purpose, and other related factors.

　　Floor area. This is the most critical factor. Larger areas require more steel, leading to higher costs for steel-framed villas. The width determines the size of the area.

　　Span length of prefabricated light steel. Generally, the longer the span, the lower the cost. Different fabrications result in different spans and significant variations in column spacing requirements.

　　Steel quantity. The most significant factor affecting the cost of steel-framed villas is the amount of steel used. Differences arise from sourcing materials abroad versus locally, as well as choosing between color-coated steel plates and sandwich panels. Among the same materials, the area is the most significant factor affecting steel usage, which is determined by the floor area.