Views: 8 Author: Site Editor Publish Time: 2023-02-20 Origin: Site
The transportation industry standard of the People's Republic of China, "Polymer Material Slip Sheet for Bridge Bearing" (JT/T 901-2023), which is presided over by our company and participated by representative backbone enterprises in the bridge construction industry, has been released on January 19, 2023 and will be officially implemented on April 19, 2023.
Bridge bearing sliding plate as the key sliding parts in the bearing, bearing technology, the urgent requirement of bearing with wear-resistant sliding plate material wear resistance and durability also need to be improved. Therefore, in order to meet the requirements of the new era of national infrastructure construction project quality improvement, our company and the National Engineering Research Center of CCCC Highway Long Bridge Construction and the backbone of bearing production enterprises in the industry jointly developed a special slide plate without silicone grease lubrication - modified PTFE slide plate and ultra-high performance PTFE slide plate (UHPF), the product can adapt to the bridge in strong wind, earthquake The product can adapt to the bridge in strong wind, earthquake and other working conditions of high-speed sliding, and under the condition of no lubrication, wear resistance compared to existing products increased by 3 times, greatly improving the service life of the bridge bearing.
In the process of revision of this standard, the performance index requirements of the vibration isolation function of the silicone free sliding plate are added and determined, aiming to lead the industry to pursue higher quality requirements of the sliding plate manufacturers, scientifically standardize the design, production, manufacture and testing of the sliding plate for bridge bearings, especially for vibration isolation bearings, and develop an independent and complete standard text for the use of the sliding plate for vibration isolation bearings in China's bridges, which is conducive to the control of bridge The quality of the product of the sliding plate for vibration isolation bearing can be used to unify the standards for various types of bridge vibration isolation bearings, fill the gap in the technical standards for bridge vibration isolation bearings, provide design basis for the innovative design of bearings in bridge construction design institutes, and enhance the brand influence and international core competitiveness of China's bridge construction.
The main application projects of this standard are as follows：
Shenzhen-Zhongshan Bridge Renderings
Haicang Tunnel Renderings
Huangmaohai Sea-crossing Channel Renderings
Qiandaohu Bridge Renderings