The lead core seismic isolation rubber bearing for highway bridges is a standard bridge component product developed according to national and industry-related standards, while also referencing European standards. This product is available in two types: rectangular and circular, suitable for various highway and municipal bridges in seismic zones of 8 degrees and below.

　　Product Features.

　　■ A three-in-one seismic isolation device with vertical load capacity, horizontal restoring force, and damping (energy absorption);

　　■ The bearing has a large horizontal limit displacement, effectively absorbing seismic energy; it can be adjusted according to design requirements, has good energy dissipation capability, and low maintenance management costs (no need for other damping devices);

　　■ It does not become unstable during large deformations after a major earthquake, has strong reset capability, minimal residual deformation, and does not require replacement;

　　■ The surface is covered with a rubber protective layer, protecting the internal rubber from ozone and ultraviolet effects, providing better aging resistance, with an equivalent damping ratio reduction of less than 2% over 50 years; the LRB lead core seismic isolation rubber bearing has low temperature dependence and is widely used in different climatic regions; it is easy to install and construct, and does not damage the beam and pier during replacement. The lead core seismic isolation rubber bearing for highway bridges is designed according to national standards (GB20688), while also referencing European standards. It fully considers China's national conditions while drawing on advanced foreign technologies, optimizing the structure and materials, providing good seismic isolation performance, a wide range of applicability, and is a cost-effective new type of bridge component product.