Ware House Steel Structure Building

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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:Definition of large steel structures
As a green environmental protection product, steel structure has the advantages of light weight, high strength and good seismic performance compared with the traditional concrete structure. The structure is suitable for the small proportion of the total load of the live load, and is more suitable for the construction of large span space structures and high-rise structures, and is suitable for construction on soft soil foundations. It also conforms to the national policy of environmental protection and conservation and intensive utilization of resources, and its comprehensive economic benefits are increasingly recognized by all investors, which will objectively urge designers and developers to choose the steel structure.
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 distinguish between steel structure materials and structures, steel types and specifications?
Carbon structural steelAccording to the current national standard "carbon structural steel" (GB700) regulations, numerical grade carbon steel structural yield point represented by the letters Q, yield point (N/mm2), the quality grade of symbols and symbol deoxidization method four parts according to the order.Carbon structural steels are divided into five kinds: Q195, Q215, Q235, Q255 and Q275. The greater the yield strength, the greater the carbon content, strength and hardness of the carbon structure, the lower the plasticity. Among them, Q235 in use, processing and welding performance is better, is one of the steel commonly used in steel structure.Quality grade is divided into A, B, C, D four, from A to D that quality from low to high. Different quality grades of steel require different chemical composition and mechanical properties. A no impact on regulations, only in the cold test only when the carbon, silicon and manganese content can not as delivery conditions; the B level, C level and D level were required to ensure 20 C and 0 C, 20 C Charpy V notch impact energy is not less than 27J (longitudinal), were required to provide assurance of conformity of bending test, as well as carbon, manganese, silicon, sulfur and phosphorus content of warranty. When all steels are delivered, the supplier shall provide the quality assurance of mechanical properties such as yield point, ultimate strength and elongation.
Q:What documents do steel installers need to have?
Steel erection workers need at least welder certificate, electrician certificate and hoisting certificate.
Q:What is the life span of steel structure?
This is based on the quality of materials, design, load-bearing base of good or bad, as well as maintenance, protection, geographical location. Of course, the quality is good, careful, high life, generally in fifty years is no problem.
Q:Which is better, the fire resistance of the reinforced concrete structure and the fire resistance of the steel structure?
The steel melting point, steel structure is not to the melting point, when the burning temperature reached 500 degrees, the structure will collapse, concrete has no melting point, when the temperature reached 80 degrees will appear on the surface of concrete crack, skin peeling.
Q:Why steel structure does not fire?
Steel structure is the most fatal weakness is the fire resistance of steel is very poor, the internal crystal structure of steel is very sensitive to temperature, temperature rises or falls will change the performance of the steel, steel structure is typically 450 to 650 DEG C will lose the bearing capacity, big deformation, resulting in steel column and beam bending results. Due to large deformation can't continue to use.
Q:What is a steel structure?
The steel structure is made of steel beams, steel columns, steel trusses and so on. Each component or component is usually welded, bolted or riveted.
Q:What is the ultimate capacity of steel structures?
A condition in which a structure or component reaches a specified limit for normal use or durability, referred to as the serviceability limitSuch as (1) affecting the normal use or appearance of deformation;(2) local damage (including cracks) that affects normal use or durability;(3) vibration affecting normal use;(4) other specific conditions that affect normal use;
Q:What are the joint forms of steel structures?
The steel structure joints are divided into rigid joint and hinged joint, and the joints in the truss are many, because the steel pipe is used more.

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