博文

目前显示的是 三月, 2023的博文

Featured Articles

What is a shear key in steel structures?

-
图片
 In steel structure engineering , the column base connection serves as the pivotal interface linking the superstructure to the concrete foundation below. It must safely and reliably transmit various loads from the upper structure: vertical pressure , uplift forces , bending moments , and horizontal shear forces . When horizontal shear forces become substantial, the friction alone between the column base plate and the concrete foundation surface proves insufficient to resist them. At this juncture, a critical small component becomes indispensable—the shear key . Shear keys, as the name suggests, are structural steel connection components specifically designed to resist and transmit horizontal shear forces. Essentially, they are short steel members. Installation location: Typically welded or anchored to the base plate of a steel column (or other load-bearing components such as equipment supports ), with its lower end embedded in the concrete foundation or concrete structure cast ...
发表评论
阅读全文

Steel Structure Welding Technology

-
图片
  Steel Structure Welding Technology Steel structure welding technology is the process of joining two or more metallic parts by heating and melting the surfaces to create a fusion between them. The welding process is widely used in the construction of steel structures such as bridges, buildings, and other infrastructure projects.   Steel Structure Welding Technology Welding Techniques for Steel Structures There are several welding techniques that are commonly used in the construction of steel structures. These techniques include:   Shielded Metal Arc Welding (SMAW) Shielded metal arc welding, also known as stick welding, is a manual welding process that uses a consumable electrode coated in flux to create an electric arc between the electrode and the workpiece. The heat generated by the arc melts the workpiece and the electrode, creating a molten pool that cools to form a weld.   Gas Metal Arc Welding (GMAW) Gas metal arc welding, also known as MIG welding, is a semi...
发表评论
阅读全文

What are the national standards for steel materials?

-
图片
  There are different national standards for steel materials around the world, and the specific standards depend on the country and the intended use of the steel. Some examples of national standards for steel materials are: ASTM (American Society for Testing and Materials) standards: These are widely used in the United States and cover a wide range of steel products, including structural steel, carbon steel, alloy steel, stainless steel, and tool steel. EN (European Norm) standards: These are developed by the European Committee for Standardization (CEN) and cover various types of steel products, including structural steel, stainless steel, and high-strength steel. JIS (Japanese Industrial Standards) standards: These are developed by the Japanese Industrial Standards Committee and cover various types of steel products, including carbon steel, alloy steel, stainless steel, and tool steel. GB (Chinese National Standards) standards: These are developed by the Standardization Administra...
发表评论
阅读全文

What are the advantages of steel structure applied in gymnasium roofing?

-
图片
  Steel structures used in gymnasium roofing ? have the following advantages: gymnasium roof Large span: stadiums usually require a large span, and steel structures can achieve a large span design without the need for intermediate support columns, improving the viewing experience of the audience. Lightweight: Compared to traditional concrete structures, steel structures are lighter in weight, which reduces the load on the foundation, reduces the self-weight of the building, and lowers construction costs. Fast construction: Steel structures can be prefabricated in factories and then transported directly to the site for installation, resulting in faster construction, reduced on-site construction time, and reduced impact on the surrounding environment. Good durability: steel structure has high durability and corrosion resistance, which can ensure long-term stable operation of the stadium. High plasticity: Steel structure can be freely deformed according to different design requir...
发表评论
阅读全文

What are the different types of glass wool?

-
图片
  glass wool Glass wool is a popular insulation material made from recycled glass fibers. It is available in different types and forms, each designed for specific applications.  Here are the different types of glass wool: Unfaced Glass Wool: This type of glass wool does not have a facing material on either side and is typically used in areas where it will not be exposed to the elements. Faced Glass Wool: This type of glass wool has a facing material on one or both sides, typically made from kraft paper, foil, or a combination of both. Faced glass wool provides additional moisture resistance and improves thermal performance. Semi-rigid Glass Wool: This type of glass wool is denser and stiffer than traditional glass wool and is used in areas that require additional structural support, such as roofs and walls. Board Glass Wool: This type of glass wool is produced in board form and is used primarily for thermal and acoustic insulation of flat surfaces such as walls, roofs, and cei...
发表评论
阅读全文