Plate rubber bearings are widely used in the following specific highway engineering projects:
- Simply supported beam bridges with small and medium spans: For example, there are simply supported beam bridges across rivers in cities, with a general span of about 20 meters. Some small simply supported beam bridges over small rivers in Hangzhou often use plate rubber bearings. It can stably transfer the load of the beam body to the piers and abutments, and at the same time, it can adapt to the expansion, contraction and rotation of the beam body caused by vehicle loads, temperature changes, etc.
- Curved bridges and skew bridges: At some curved sections of mountain highways or at the skew intersections of urban roads, there will be curved bridges and skew bridges. For example, some small curved bridges on mountain highways in Chongqing or some skew overpasses on urban roads in Shanghai. The spherical crown plate rubber bearings can be used for such bridges, which can well adapt to the spatial rotation and displacement of the beam end and ensure the stability of the bridge structure under complex stress conditions.
- Expressway bridges: For example, many small and medium-span bridges on expressways such as the Lianhuo Expressway and the Beijing-Hong Kong-Macao Expressway have used a large number of plate rubber bearings. They can withstand the frequent vehicle loads on the expressway, effectively buffer the vibration and impact generated by the vehicle driving, reduce the damage to the bridge structure, and ensure the driving safety and the service life of the bridge.
- Elevated viaducts of urban expressways: For example, the elevated viaduct parts of urban expressways such as Siyuan Bridge in Beijing and Youxin Elevated Road in Suzhou widely use plate rubber bearings at the supporting parts of the beam body. It can adapt to the characteristics of large traffic flow and fast vehicle driving speed in cities, reduce the vibration and noise of the bridge, and provide a more comfortable travel environment for urban residents.
- Ordinary highway bridges: Plate rubber bearings are also extremely common in some ordinary highway bridges at the county and township levels. For example, on some small bridges connecting villages with the outside world on the ordinary highways in mountainous areas of Yunnan, Guizhou and other regions, due to the advantages of simple structure, low cost, convenient installation and maintenance of plate rubber bearings, they have become the first choice for the bearings of these bridges.
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