First-class Steel-work Construction

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Product Description:

Steel  Structure

Description:
1.Length of the welding withnot indication,full welding should be applied
2.Seam without indication is fillet weld,height is 0.75t
3.The cutting angle without indication,radius R=30
4.Cutting angle not specified should be 20/20
5.The diameter of the hole for the bolt if not specified, D=22

Project Reference:

Inner Mongolia Shangdu Power Plant is the main source
of west-east power transmission project with total
incestment of 5137 million Yuan. 1,900 tons for the steel
structure of the project with maximum thickness 60mm-
75mm.

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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 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.
Q:How long is the expected corrosion resistance of the general steel structure paint? Is there a relevant specification?
The selection of anticorrosion material, construction technology and application area are different, and the service life of anticorrosive coating is different.
Q:What does "CHS44*12" mean in steel structures?
The structure is mainly composed of steel beams and steel plates, such as steel beams, steel columns, steel trusses and so on. Each component or component is usually connected with welds, bolts or rivets. Because of its light weight and simple construction, it is widely used in large factories, stadiums, super high-rise and other fields.
Q:What is the steel structure XLT?
The structure is mainly composed of steel beams and steel plates, such as steel beams, steel columns, steel trusses and so on. Each component or component is usually connected with welds, bolts or rivets. Because of its light weight and simple construction, it is widely used in large factories, stadiums, super high-rise and other fields.
Q:How to consider the influence of base displacement on steel structure
The vertical deviation is too large and the height of the column column below the design elevation. The high-rise steel structure engineering, steel structure engineering of column soleplate gap is too large or difficult iron pad placed in the assembly process will. It is also found that the spacing between columns is too large or too small, and it is often found that the top elevation at both ends of the beam is inconsistent.
Q:How long is the fire resistance rating of steel structure two?
Therefore, when the fire resistance rating of steel structure is two, the refractory time requirement of the component is as follows: column: 2.5 hours, beam: 1.5 hours, floor: 1 hours. The steel structure can be made up of wrapped concrete (or masonry bricks), fireproof coating, fireproof board cladding and composite structure, and the required refractory time can be achieved.
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:Steel plate for steel structure, what kind of steel plate is it
Carbon steel, low alloy high strength structural steel and high quality carbon structural steel are often used in building engineering.
Q:How can steel structures be divided into general steel structures, large steel structures and other steel structures?
There is no standard and strict definition of steel structure division.

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