双曲面球型减隔震支座在连续梁桥的应用研究

Research on Application of Double Curvature Spherical Seismic Isolation Bearing in Continuous Girder Bridge

摘要:

作为我国研发的一种新型减隔震装置，双曲面球型减隔震支座具有构造简单、承载力大、耐久性好和可以提供可靠的自恢复能力等优点。对采用该新型减隔震支座的一大跨径连续梁桥的抗震性能进行深入分析与研究。结果表明：该新型支座具有十分稳定和高效的减隔震效果，为桥梁设计人员提供丰富的减隔震参数选择空间，非常适用于高烈度区大跨径连续梁桥的减隔震设计。

Abstract:

As a new type of seismic isolation device developed in China, the double curvature spherical seismic isolation bearing has the advantages of the simple structure, strong bearing ability, good durability and reliable self-recovery capability. The anti-seismic property of the long-span continuous girder bridge used by this new seismic isolation bearing is further analyzed and studied. The result shows that this new bearing has a stable and efficient seismic isolation effect, which provides the rich selections of seismic isolation parameters for the designers, and is very suitable for the seismic isolation design of the long-span continuous girder bridge in high intensity areas.