Large Span Steel Strucutre

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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


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:How long is the expected corrosion resistance of the general steel structure paint? Is there a relevant specification?
As ordinary steel structure anticorrosion coating, the composite coating iron red epoxy primer / epoxy micaceous iron oxide intermediate paint / chlorinated rubber finish form, life expectancy is 10 years.
Q:The longitudinal force of a steel column supported by a steel column
Steel structure engineering is mainly made of steel, and it is one of the main types of building structures. The characteristics of the steel is of high strength, light weight, good integral rigidity, deformation ability, it is used in the construction of large span and super high and super heavy buildings especially suitable; homogeneous and isotropic material, an ideal elastic body, the most consistent with the basic assumption of the general engineering mechanics;
Q:How to calculate the purlin of steel structure.
Standard span is 7.5m, purlin is used in C160*60*20*2.5, the amount of material to the calculation of the length of the table design without 7.5m. The general budget according to material table length calculation, because there is a connection between the specific purlin purlin connecting, you look at the sample length should be greater than 7.45m; if the length is less than 7.5m connections,.
Q:What is an assembled steel structure?
An assembly structure: a structure that assembles components in a special workshop and assembles the components at the construction site.Therefore, in accordance with this concept, the steel structure is assembly type, all components are processed in the factory, transported to the construction site for lifting
Q:Does the steel structure belong to high-risk industries?
In accordance with the procedures prescribed by the state: first entrust qualified units to prepare the feasibility study report, preliminary design to find a qualified department for construction project, after the application of safety pre evaluation certificates a book, and the Safety Supervision Bureau issued approval certificate, after the completion of the construction for the safety evaluation report for safety production license.
Q:How to calculate the allowable slenderness ratio of steel structures under compression?
The slenderness ratio of the structure is I = l/i, and the radius is gyration radius.The buckling stress in the axial compression members of steel structures is only related to slenderness ratio.
Q:The role of stiffeners in steel structures?
Under the condition of not increasing the wall thickness of the product, the strength and rigidity of the product are enhanced, thereby saving material consumption, reducing weight and reducing cost
Q:In the steel structure safety margin refers to what?
The ratio of the structural stress to the design stress minus 1 is used as a positive fraction of the strength of the structure.
Q:Where is the steel structure? High strength bolts?
Steel structure is generally beam column connection, beam and beam connection with high-strength bolts, if the high-rise steel structure building support system should also use high strength bolts
Q:What is the main component in the steel structure and what is the secondary component?
The main components mainly include steel beam, steel column, column support and roof horizontal support

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