Steel structure production and installation requirements Steel structure production process and production process

Due to its advantages of high strength, light weight, good overall rigidity, and strong deformability, steel structures are widely used in buildings with large spans, high heights and super heavy loads. Then, what are the requirements for the production and installation of steel structures and the manufacturing processes and production processes of steel structures? Let's take a look with Xiaobian.

Steel structure production and installation requirements Steel structure production process and production process

First, the steel structure production and installation requirements:

Steel structure production and installation, when the monomer design without special requirements, should be constructed according to the following requirements.

The production of welded H-section steels shall meet the requirements of relevant specifications such as "Code for the Construction and Acceptance of Petrochemical Steel Structure Engineering" (SH3507-1999). The thickness of the fillet weld between the welded H-beam flange and the web is the thickness of the web. The welding quality grade shall be inspected in accordance with the “Code for Acceptance of Construction Quality of Steel Structure Projects” (GB50205-2001), in which the splicing of the flange plates or webs is a grade one when the splicing is straight. When using 45 ° oblique docking, two. The fillet welds of the T-joints of the flange plate and the web are three grades, but the appearance inspection should meet the requirements of the second grade. When the flange plate and the web both need to be spliced, the spacing between the two splicing seams should be greater than 200 mm. Splicing welding should be done before assembly. The H-type steel column joints are located near 1.3m above the frame beam and are not within 1/2 of the net height of the column. Its butt joints should use full penetration welds. Columns are welded H-beams. Column splice joints shall be within 100 mm of the upper and lower sides. Full penetration welds shall be used for the connection between column flanges and column webs. The column is a welded H-section steel. When the column is rigidly connected with the beam, the column is within 500 mm of the upper and lower points of the flange of the beam flange. The connection between the column flange and the column web is to use a full penetration weld.

Second, steel structure production process and production process:

Structural steels are generally classified by strength, and the numbers in steel numbers often represent the lowest values of tensile strength. Because this type of steel is often used to make structural parts, it is referred to as structural steel. The strengthening mechanism of structural steels tends to reduce carbon, increase manganese, solid solution strengthen ferrite, refine pearlite, and add precipitation strengthening, precipitation strengthening, and fine grain strengthening of microalloys to ensure that the strength is improved while still maintaining good toughness. , plastic indicators and have good welding performance.

Most steel products are processed by pressure to plastically deform the processed steel (blanks, ingots, etc.). According to the different processing temperature of steel, it can be divided into two kinds of cold processing and hot processing. The main processing methods of steel are:

Rolling: The process of passing a metal blank through the gaps (various shapes) of a pair of rotating rolls, and the method of press processing that reduces the cross section of the material due to the compression of the rolls and increases the length. This is the most common method of production for the production of steel. Production profiles, plates, pipes. Sub-cold rolling, hot rolling.

Forging: A method of pressure processing that uses the reciprocating impact of a forging hammer or the pressure of a press to change the blank into the shape and size we want. Generally divided into free forging and die forging, often used to produce large sections, open blanks and other larger size of the material.

Pull dial: It is the processing method that the rolled metal blanks (types, tubes, products, etc.) are drawn through the die holes to reduce the length of the cross-section, and most of them are used for cold working.

Extrusion: It is a method of processing a finished product with the same shape and size by applying metal to a closed extrusion cylinder and applying pressure at one end to allow the metal to be extruded from a prescribed die hole, and is mostly used for producing non-ferrous metal materials.

The above requirements concerning the production and installation of steel structures, the production process of steel structures and the production process are briefly introduced here. I hope to help you. For more information, please visit this website. Stay tuned.

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