full chain disassembly of a light steel villa
From a piece of steel to a house: a full chain disassembly of a light steel villa
Light steel villas, also known as light steel structure houses, are mainly made of light steel keels synthesized by cold rolling technology from hot-dip galvanized aluminum steel strips.
The aluminum-zinc alloy structure of aluminum-zinc-plated steel plates is composed of 55% aluminum, 43.4% zinc and 1.6% silicon solidified at a high temperature of 600°C. Its entire structure is composed of aluminum-iron-silicon-zinc, forming a dense quaternary crystal, thus forming a strong barrier that effectively prevents corrosion factors from penetrating.
Light steel characteristics
01 Corrosion resistance
The corrosion resistance of "55% aluminum-zinc-plated steel coils" comes from the barrier layer protection function of aluminum and the sacrificial protection function of zinc. When zinc is used as sacrificial protection on the cut edges, scratches and plating scratches, aluminum forms an insoluble oxide layer to play a barrier protection function. Alu-zinc alloy steel coils have been subjected to outdoor exposure tests in various atmospheric environments for more than 20 years, proving that the edge protection function of 55% AL-Zn steel sheets is better than that of galvanized steel sheets and 5% AL-Zn steel sheets.
02 Heat resistance
The heat resistance of 55% AL-Zn steel sheets is better than that of galvanized steel sheets, and is similar to that of AL-Zn steel sheets in high temperature oxidation resistance. Alu-zinc steel sheets can be used in high temperature environments up to 315 degrees.
03 Reflectivity
55% AL-Zn steel sheets have a high reflectivity, making them a heat barrier; the heat reflectivity of AL-Zn steel sheets is almost twice that of galvanized steel sheets, so they can achieve energy-saving effects when used as roofs and panels without painting.
04 Paintability
Due to the excellent adhesion between the zinc layer and the paint of AL-Zn steel sheets, they can be painted without pretreatment and weathering when used as signboards for general purposes; while galvanized steel sheets require weathering and pretreatment.
Basic composition
Light steel villa system structure
The light steel wall structure system is jointly stressed by light steel ribbed beams and columns and conforming maintenance structures. It has excellent physical performance indicators, short construction period, and good insulation effect. It is a new type of green energy-saving and environmentally friendly building structure system.
(I)
Foundation system
The self-weight of light steel structure houses is light, only about one-fifth of brick-concrete structure houses and about one-eighth of reinforced concrete structure houses. Therefore, it can greatly reduce the cost of foundation construction. The foundation of light steel structure houses generally adopts strip foundation.
①The self-weight of light steel structure is light, which can greatly reduce the cost of foundation engineering;
②The moisture-proof design of the foundation effectively prevents moisture and harmful gases from invading;
③Reasonable anchoring method ensures reliable connection between the foundation and the main body.
(II)
Wall system
The external wall system is generally between 120-200㎜. Due to the thin wall, the actual use area of light steel structure houses is increased by about 10%-15% compared with traditional houses, and the indoor use area is increased by more than 90% compared with traditional houses. The indoor space can be flexibly divided. Pipelines can be arranged in the holes reserved in the walls, floors and roof components, which are well concealed and more beautiful.
① The wall is filled with glass fiber wool, which has good thermal insulation, heat insulation and sound insulation performance;
② The breathing paper is waterproof and breathable, which can effectively adjust the indoor air humidity, make living more comfortable, and effectively prevent the growth of mold inside the wall;
③ The pipeline is buried in the wall and does not occupy indoor space.
(III)
Floor system
The floor is composed of high-strength hot-dip galvanized C-type and U-type light steel components. The floor beams are arranged according to the standard modulus with equal spacing and dense ribs. The floor beams are covered with structural plates that have been strictly moisture-proof and anti-corrosion to form a solid and earthquake-resistant floor system.
① The combined structure of the structural plate and the floor steel beam is solid and stable;
② Various water and electricity pipelines are concealed in the floor structure and do not occupy the building floor height;
③ Filling the interlayer with glass fiber wool has significant effects of thermal insulation, sound absorption and sound insulation.
(IV) Roof system
The roof truss is assembled from various light steel components, generally triangular trusses and T-shaped trusses, which can easily and flexibly realize various complex roof shapes. Generally, the roof uses colorful asphalt tiles, which have good waterproof performance and highlight the beauty and quality.
① The composite roof has functions such as rainproof, weather-resistant, and heat-insulating, and can achieve rich and diverse shapes;
② The ventilation circulation design keeps the air fresh at all times.
(V) Structural components
All structural components are made of high-strength galvanized steel to ensure the service life of the house. All structural components are cold-pressed by the factory's precision mechanical assembly line, and the dimensional accuracy is measured in millimeters, which is unmatched by other structures.
