Steel Strucutre Construction For Housing

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Product Description:

Steel Structure Building

1.the connection method of steel structure:

   welding connection or bolt connection

2.Steel structure design common norms are as follows:

  • "Steel Design Code" (GB50017-2003)

  • "Cold-formed steel structure technical specifications" (GB50018-2002)

  • "Construction Quality Acceptance of Steel" (GB50205-2001)

  • "Technical Specification for welded steel structure" (JGJ81-2002, J218-2002)

  • "Technical Specification for Steel Structures of Tall Buildings" (JGJ99-98)

3.The characteristics of steel

  • Light weight steel structure

  • Higher reliability of steel work

  • Steel anti-vibration (earthquake), impact and good

  • Steel structure for a higher degree of industrialization

  • Steel can be assembled quickly and accurately

  • Large steel interior space

  • Likely to cause sealing structure

  • Steel corrosive

  • Poor fire-resistant steel

  • Recyclable steel

  • Steel shorter duration

4.Commonly used steel grades and performance of steel

  • Carbon structural steel: Q195, Q215, Q235, Q255, Q275, Q345,etc.

  • High-strength low-alloy structural steel

  • Quality carbon structural steel and alloy structural steel

  • Special purpose steel

5.Market:

Products have been all over the country more than 20 provinces, municipalities and autonomous regions, and have been exported to Europe, North America, the Middle East, Africa, Asia and other countries and regions, the widespread use

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Q:What is the two steel structure?
Steel structure decoration member used in outer eaves decorationFor example, steel structure canopy, steel structure, glass curtain wall etc.
Q:The exterior walls of steel buildings are colored steel plates, aren't they?
The base plate of the color steel plate is a cold rolling base plate, a hot-dip galvanized substrate and an electro galvanized substrate. The coating types can be divided into polyester, silicon modified polyester, PVDF two and vinyl chloride. The surface state of color steel plate can be divided into coated sheet, embossing plate and printing plate, color steel appliances widely used in construction and transportation industries, the construction industry is mainly used in steel plants, airports, warehouses and other industrial and commercial refrigeration roof of the building walls and doors, building color steel less.
Q:What is steel structure steel plate?
The penetration welding spot welding, welding should be prepared before the arc welding test pieces, adjust the welding current. Because the floor plate at the bottom of horizontal and vertical supporting formwork, pouring concrete material should not be too concentrated, the plate vibrator timely allocation of vibration.
Q:Ratio of width to thickness in steel structure design,
The slenderness ratio of columns in the design of components in the main role is to calculate to consider the load bearing capacity of reinforced concrete columns under eccentric compression is long, due to the impact of additional eccentric component elastic-plastic deformation caused by the eccentricity, stability coefficient and coefficient of axial compression member, and the slenderness ratio.The columns are also divided into short columns, long columns and slender columns due to slenderness. From here we determine the type of column and, in practice, try to avoid slender columns
Q:What is the steel structure of portal frame and frame difference
Shelving structure: as the name suggests, a row of rows. Mainly used for single plant, by the roof and pillars and constitute the basis of horizontal plane, is the main bearing system of the plant, and then the plane frame is connected by the roof panel, crane beam, longitudinal support member, the overall space structure.
Q:Measures to prevent rust in welded seam of steel structure
Containing 95% pure zinc, can be used for cold galvanizing, rust prevention, permeability, metal surface protection, zinc film after spraying, can effectively prevent rust and prevent corrosion spread. The main steel structures, bridges, buildings, electrical towers, tunnel facilities, containers, reinforcing steel bars, communication launchers, signs, ships, steel plates, equipment, etc., can be galvanized paint, the effect is remarkable
Q:Why can't epoxy paint be used in outdoor steel structures?
Epoxy paint used as primer, iron red epoxy primer, epoxy zinc primer can be matched with acrylic polyurethane paint, fluorocarbon paint, etc. for outdoor weatherproof coating.
Q:Why steel structure does not fire?
When the temperature is about 250 degrees Celsius, the tensile strength increases locally, the yield strength rises, the strength increases, and the plasticity decreases, and the material turns brittle.Creep is the phenomenon of steel deformation at a very slow speed in the range of 260 DEG C to 320 DEG C under the condition that the stress remains constant. With the performance of 200 DEG C has no change in the material properties, the surface structure of the radiation temperature should not exceed 200 degrees, the current steel structure industry regulation of the temperature to 150 degrees is appropriate, beyond which the temperature should adopt fire insulation protection.
Q:Housing cost of civil steel structure
Want to do high-rise residential steel structure also needs a long time in the domestic steel structure at present is industrial plant or self light steel villa type, or a certain first high-rise steel structure of high-rise residential can really do very little the price factor is part of the reason the other hand is the global scope for steel structure high-rise residential fire safety, maintenance cost and technology has not been able to reach. At the same time, the domestic people's knowledge of the steel structure residential is still relatively small, and the popularization of steel structure housing also needs a process.
Q:Why steel structure is adopted in super high-rise buildings?
Steel structures have much lighter weight than concrete structures. The weight of concrete high-rise structure is about 1200kg / square meters of building area, and steel weight about 500kg / square meters building area. So the same foundation, the steel structure may be built higher;

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