Product Introduction
Description:
Introducing our High Damping Seismic Isolators, meticulously crafted for superior seismic isolation.
These innovative components are designed specifically for seismic isolation bridges, developed by the esteemed China Communications First Highway Survey, Design and Research Institute Co., Ltd. They adhere to the current national standards (GB 20688) and relevant industry norms, while also referencing European standards. As a result of major scientific and technological research projects, these products have secured patents and have been appraised as significant scientific and technological achievements at the provincial and ministerial levels. They have received approval (Shaan Ke Jian Zi [2010] No. 097) and related certifications, elevating them to the transportation industry standard of the People's Republic of China (JT 2009-26). These bearings are suitable for various highways and municipal bridges in seismic zones with intensities up to 9 degrees.
Isolation rubber bearings combine all the functionalities of plate bearings with exceptional isolation capabilities, effectively mitigating earthquake-induced damages to bridges. High damping rubber bearings, a subtype of isolation rubber bearings, are crafted from advanced high damping rubber materials, achieving a damping ratio between 10% and 16%. Despite resembling natural rubber bearings in shape and structure, their high-viscosity material absorbs energy efficiently and exhibits remarkable ductility. This allows them to extend the natural vibration period of structures during earthquakes, diminish seismic forces, and utilize their energy dissipation properties to provide seismic isolation akin to lead core sandwich rubber bearings.
By utilizing high damping composite rubber material instead of lead core, and fine-tuning the filler material proportion to adjust total damping, these bearings exhibit extraordinary energy consumption capabilities and enhance isolation reduction. High damping rubber bearings boast stable performance, superior energy dissipation, and exceptional ductility. Their higher equivalent viscous damping translates to greater energy dissipation, leading to significant seismic isolation effects and effective control of the seismic response in isolated structures. The multifunctional integration results in a more compact volume compared to lead core bearings, saving valuable space, facilitating easier construction, and offering a more cost-effective solution.
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