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Foundation bolt manufacturers offer customization. What are foundation bolts? Can foundation bolts be customized? Generally speaking, those who work in steel structure manufacturing should be aware of this, but it’s possible that some people are not. So today, the editor from Pulete Fasteners will introduce foundation bolts to you. https://p7.itc.cn/images01/20200604/221f632d42744da48b6c50c52d3b35b5.jpeg Foot bolts – these bolts are used to secure machines to the ground. Due to its strong stability, it is often used in bridges, mines, railways, highways, power plants, cement factories, cars, motorcycles, tower cranes, boiler steel structures, large-span steel structures, and large buildings. The function of anchor bolts is obvious and very important; let’s take a look at the specifics of anchor bolts. First, let’s take a look at the materials used to make anchor bolts; generally, Q235 and Q345 are used for this purpose. Q345 (that is, deformed steel bar) has high strength, so the threading for nuts is not as simple as that of plain bars. http://p2.itc.cn/images01/20200604/11119ba3d706492b831815f82058c6e4.jpeg If embedded round foot bolts are used, the embedding depth is approximately 25 times the diameter of the bolt; of course, a 90-degree bend about 12 cm long must also be created at the end. It is possible that the diameter of the bolt is too large (for example, 45 mm), in which case the required burial depth will be greater. In such cases, it is necessary to weld a square plate onto the top of the anchor bolt (in other words, create a larger end); however, this also needs to comply with relevant regulations. Why are there requirements regarding the burial depth and angle when installing foot screws? All of this is to ensure the friction between the foot bolts and the foundation, thereby preventing the bolts from being pulled out and causing damage. So what exactly is the tensile strength of anchor bolts, as referred to by engineers in everyday discussions? In fact, the tensile strength of anchor bolts is equivalent to that of the round steel itself; thus, the tensile strength value of an anchor bolt equals its cross-sectional area multiplied by the design tensile strength value (140 MPa). The value obtained through this calculation represents the tensile load capacity permitted during design. http://p3.itc.cn/images01/20200604/b9ce16e0da62495b9dc99228fd08aa7f.jpeg The tensile bearing capacity has two values: one is the allowable tensile bearing capacity and the other is the ultimate tensile strength. Since we need to keep everything within safe limits during engineering design, we allow the tensile strength value to be lower than the ultimate tensile strength value. (Limit tensile strength = effective thread area * tensile strength of the steel; the tensile strength of Q235 is 235 MPa)
Poster: It would be better if you could summarize your various descriptions, covering aspects such as the selection of materials for foundation bolts, on-site storage, installation precautions, and subsequent inspection and maintenance, and present it in a way that includes both text and illustrations.
Eating it in smaller portions aids digestion. I think that’s what the original poster is thinking! At the same time, I would like to thank the original poster for their active cooperation in our work. I have always believed that good technical skills guarantee successful sales!
As a professional in equipment, it is sufficient to have an understanding of this; the design of anchor bolts falls within the scope of structural engineering design. Although foot bolts are also taken into account in our field of equipment engineering, only their diameter is calculated; the burial depth of foot bolts is not addressed in our field. The burial depth is related to factors such as soil bearing capacity and concrete grade, and these aspects are considered by the structural engineering team. There are specialized areas of expertise, and it’s sufficient for us to have an understanding of them.