Overview
Principles of Construction
Steel structure spherical support is an important component used in steel structure buildings.
It mainly consists of an upper support plate, a lower support plate, spherical steel balls, and polytetrafluoroethylene sliding plates. The upper support plate is connected to the upper structure, and the lower support plate is connected to the lower structure. The spherical steel ball in the middle allows the support to rotate flexibly, adapting to the rotation requirements of the structure under different working conditions. The PTFE skateboard is matched with steel balls and has a very low coefficient of friction, allowing the support to slide smoothly in the horizontal direction to cope with horizontal displacement caused by temperature changes, earthquakes, and other factors. At the same time, it can also bear vertical pressure well, ensuring the stability and safety of the structure. In summary, steel structure spherical supports play a crucial role in adapting to structural stress and deformation.
Product advantages
1. Reliable and uniform transmission of force
Through spherical force transmission, there is no necking phenomenon of force, and the reaction force acting on the upper and lower structures is relatively uniform, which can make the force on the structure more reasonable and stable, and is conducive to ensuring the safety of the entire structure.
2. Flexible rotation
Using the sliding of spherical polytetrafluoroethylene plates to achieve the rotation process, the rotational torque is small, and the rotational torque is only related to the radius of the support spherical surface and the friction coefficient of the polytetrafluoroethylene plate, regardless of the size of the support angle. It is particularly suitable for large angle requirements, and the designed angle can reach 0.05rad to 0.06rad or more, which can meet the requirements of different engineering projects for angle.
3. Consistent rotational performance in all directions
The rotational performance in all directions is the same, suitable for complex structures such as wide bridges, curved bridges, ramp bridges, inclined bridges, and large-span bridges. It can better adapt to the rotational requirements of the structure in different directions and avoid additional stress and deformation caused by inconsistent rotational performance.
4. Strong adaptability to displacement
The allowable displacement of the support is large, which can meet the displacement requirements of the structure under load. Whether in the longitudinal or transverse direction, it can provide sufficient displacement space, effectively releasing the internal forces generated by factors such as temperature changes, concrete shrinkage and creep, or earthquakes inside the structure.
5. Widely applicable environment
Due to the absence of rubber pressure bearing components, there is no impact of rubber aging on the rotational performance of the bearing, making it particularly suitable for low-temperature areas. At the same time, its weather resistance is also good, and it can adapt to various climatic conditions, reducing the risk of bearing performance degradation caused by environmental factors.
6. Good seismic performance
It has good elasticity and shock absorption effect, which can alleviate the impact of earthquakes on structures, ensure the seismic performance of structures, and withstand tensile, compressive, and shear (lateral) forces. As long as the upper and lower structures themselves are not damaged, catastrophic consequences such as beam and frame falling will not occur, making it suitable for high-intensity earthquake areas.
7. Simple structure and easy installation
The construction is relatively simple, usually as a whole product, without the need for secondary assembly on site. It is convenient and fast to install, and is not limited by terrain, which can save construction time and costs
Specification
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Product Name
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Steel structure building spherical support |
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The working principle of building steel structure spherical bearings is mainly achieved through spherical stress transmission and sliding to achieve rotation and displacement.
Specifically, a spherical support consists of multiple components, including an upper support plate, a concave spherical surface (or crown liner plate), a lower support plate, and a polytetrafluoroethylene plate. When earthquakes or other phenomena occur that cause steel structure buildings to shake, spherical bearings achieve rotation of the beam end through the sliding between the spherical surface and the base, allowing for both free sliding and rotation. This sliding and rotating design enables the spherical support to withstand loads from all directions and evenly distribute the loads to various components, thereby reducing stress concentration and improving the stability and bearing capacity of the structure.
In addition, ball bearings can be divided into seismic ball bearings and shock-absorbing ball bearings based on their performance, and further divided into fixed bearings, one-way movable bearings, and two-way movable bearings based on their usage. These different types of supports can meet the displacement and rotation requirements of different structures under different conditions, further improving the flexibility and safety of the structure. |
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Product Structure
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The spherical support of building steel structure mainly consists of upper support plate, lower support plate, spherical plate (or spherical crown lining plate), polytetrafluoroethylene sliding plate (including flat and spherical sliding plates), as well as possible dust cover, rubber sealing ring, etc.
Upper support plate: usually connected to the upper structure, it plays a role in transmitting the load of the upper structure. Some upper support plates are embedded with stainless steel plates to reduce friction and wear.
Lower support plate: Connected to the lower structure, it transfers the load borne by the support to the lower foundation structure.
Spherical plate (or spherical crown liner): located between the upper and lower support plates, it is the core component of the spherical support. Its spherical surface enables the support to rotate at multiple angles, adapting to the deformation and displacement of the building structure under various loads.
PTFE skateboard: including flat PTFE plate and spherical PTFE plate, located between the upper support plate and the middle component, and between the spherical plate and the lower support plate, respectively. Polytetrafluoroethylene material has the characteristic of low friction coefficient, which can ensure the flexibility of the support during rotation and sliding.
In addition, some ball bearings may be equipped with components such as dust covers and rubber seals to improve the durability and sealing performance of the bearings. |
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Applications
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Steel structure ball bearings are widely used in large structures such as bridges, high-rise buildings, factories, large sports venues, exhibition centers, train stations, and airports.
In bridge engineering, spherical bearings can allow the bridge to rotate within a certain range and withstand various external forces, ensuring the safety and durability of the bridge. In high-rise buildings, spherical bearings are important structural support elements that can transmit loads, limit structural displacement, and adjust the horizontal and vertical alignment of the structure to ensure overall stability. In addition, ball bearings also play a key supporting role in buildings such as factories, large sports venues, and exhibition centers, ensuring the stability and safety of the structure. Ball bearings are also widely used in transportation hubs such as train stations and airports to improve the seismic resistance and overall stability of structures. |
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Product parameter adjustment
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Adjust parameters according to different application scenarios and customer requirements |
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Program Design
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Design separately according to different usage projects |
Company Profile
Hengshui Siwo New Material Technology Development Co., Ltd. is a professional manufacturer of seismic isolation and reduction, integrating research and development, production, and sales. It mainly involves the fields of construction and bridges, covering building steel structure bearings, bridge bearings, expansion devices, seismic ball steel bearings, seismic isolation rubber bearings, basin type bearings, yield type dampers, displacement type dampers, TMD tuned mass dampers, buckling restrained supports, etc.
The company currently has 78 fixed employees, including 18 technical personnel and 12 personnel with senior and intermediate professional titles. The company has established long-term cooperative relationships with universities such as Tsinghua University, Tongji University, Harbin Institute of Technology, Hunan University, Chongqing University, as well as design institutes such as Beijing Institute of Architecture, East China Institute, China Construction Southwest Institute, and China Aviation Institute. It is committed to scientific and technological innovation, product innovation, and keeping up with the pace of university industry research cooperation. At the same time, it is committed to structural design, engineering calculations, finite element analysis, and product trial testing cooperation, and is committed to new product research and development, making products more refined, optimized, and strong.
The company covers an area of over 270 acres (180000 square meters), including workshops for mechanical processing, rubber products, product assembly, and other processes. There are more than 50 sets of production equipment, including CNC lathes, CNC milling machines, CNC drilling machines, CNC cutting equipment, vulcanizing machines, internal mixers, and open mixers, to meet the processing needs of various products.
The company's testing center has excellent equipment and complete testing facilities. Equipped with trained and qualified professional quality inspectors, the products are inspected throughout the entire process to ensure that unqualified raw materials do not enter the factory, unqualified semi-finished products do not transfer to another process, and unqualified products do not leave the factory.
Driven by research and development, we strive to refine, optimize, and strengthen our products. Our consistent policy is to provide high-quality products and services that bring economic benefits to our enterprises while creating greater social benefits.
Why Choose Us
Advanced production equipment
Adequate inventory
praise from customers
FAQ
Q1: Are you trading company or manufacturer?
A:We are manufacturer.
Q2: What's your MOQ?
A:Normally it's 500 meters for one size and one color.
Q3: What's your output?
A:500,000 meters per week
Q4: How long is your delivery time?
A:Generally it is 5-10 days if the goods are in stock. And for mass production it takes 15-20 days.
Q5: May I have samples ? is it free or extra?
A:Yes, we are happy to explore new product with our customers. If the sample need to be customized, please contact us. For the regular item, we supply 3-5meters samples for free. And customer pay the sample freight only.
Q6: Whether to support customized services?
A:We can customize according to drawings or samples,Production mold independent research and development manufacturing, independent transformation of production equipment.
Q7: What is your terms of delivery?
A:EXW.FOB.CFR.CIF,DDU.etc.
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