High-strength bolts for steel structures are a kind of high-strength fasteners specially used for steel structure connection. The following is a detailed introduction.
High-strength bolts for steel structures are a kind of high-strength fasteners specially used for steel structure connection. The following is a detailed introduction:
High-strength bolts for steel structures have the advantages of good fastening performance, simple construction, good force performance, removable, fatigue resistance and no loosening under dynamic load. These advantages make high-strength bolts widely used in steel structure projects.
High-strength bolts for steel structures are mainly divided into two categories: large hexagonal high-strength bolts and torsion shear type high-strength bolts. Large hexagonal high-strength bolts belong to the high-strength grade of ordinary screws, while torsion shear type high-strength bolts are improved types of large hexagonal high-strength bolts, which are more convenient to construct.
Diverse shapes: Based on the spatial combination of the standard module series, various shapes of mobile houses can be designed according to different site conditions and usage requirements. Whether it is a single-layer, multi-layer, or a staggered combination, it can meet diverse functional requirements, such as office, residence, warehousing, etc.
The construction of steel structure bolts must be tightened first and then tightened. When tightening initially, an impact electric wrench or a torque-adjustable electric wrench can be used; when tightening finally, a torsion-shear type steel structure bolt must be tightened with a torsion-shear type electric wrench, and a torque-type steel structure bolt must be tightened with a torque-type electric wrench. To ensure construction quality and safety, operations should be carried out in strict accordance with construction specifications.
When selecting high-strength bolts for steel structures, the performance grade, category (friction type or pressure-bearing type) and construction conditions of the bolts should be considered according to the engineering design requirements. At the same time, attention should also be paid to parameters such as the material, specification and length of the bolts to ensure their matching and compatibility with the steel structure project.
1. When connecting high-strength bolts for steel structures, the connection surface should be kept clean and flat to improve the connection quality and friction coefficient.
2. During the construction process, the pre-tension and torque should be strictly controlled to avoid under-tightening and over-tightening of the bolts.
3. When retesting the performance of high-strength bolts, it should be carried out under the specified temperature and humidity conditions to ensure the accuracy of the test results.
4. The final tightening torque inspection of the high-strength bolt connection pair should be completed within 1 hour and 24 hours after the final tightening to ensure the reliability and safety of the connection.
The high-strength bolts for steel structures manufactured by Li Weiyuan play an important role in steel structure projects. The correct selection and construction of high-strength bolts are of great significance to ensure the overall quality and safety of steel structure projects.
The specifications and models of high-strength bolts are mainly the following:
1. Classification by diameter
Mainly M8, M10, M12, M14, M16, M18, etc.
2. Classification by grade standards
Mainly divided into three grades: 8.8, 10.9, and 12.9.
3. Classification by specific shape
External thread nut models include M16x90, M16x95, M16x80, M20x90, M20x80, M20x100, etc.; hexagonal bolt models mainly include M16x70, M12x50, M12x60, etc.
Liweiyuan Steel Structure's high-strength bolts of these specifications play a key fixing role in steel structure projects, and our designers will carry out according to specific needs and engineering specifications.
1. Are you a manufacturing plant or a trading company?
We are a manufacturing plant. You are welcome to visit us at any time. In the workshop, we have a complete and advanced steel structure and plate manufacturing equipment system. So we can ensure good quality and competitive prices.
2. How is your quality control?
Our products have passed the EU CE certification and quality ISO9001:2008. We have dedicated quality inspectors to inspect the entire product process.
3. Can you provide design services?
Yes, we have a team of engineers who can design for you according to your requirements. Building drawings, structural drawings, processing details and installation drawings, and let you confirm at different times of the project.
4. What is the delivery time?
The delivery time depends on the size and quantity of the building. Generally within 30 days after receiving the payment. Large orders allow for partial shipment.
5. Do you provide installation services?
We will provide you with detailed construction drawings and construction manuals to help you build and install the building step by step.
6. What is the payment term?
30% deposit and 70% balance before shipment.
7. How to get a quote from you?
You can contact us by email, phone, WhatsApp, etc. 24*7, and you will get a reply in any time
