摘要
以满足高烈度地震区大跨度连续梁桥抗震设计为目的,综合考虑桥梁支座地震位移、减隔震效果和支座抬高量等因素,设计将三摩擦副双曲面球型减隔震支座与黏滞阻尼器组合,形成大阻尼双曲面球型减隔震支座,以期达到两种产品结构集成和功能集成的效果。通过建立有限元计算模型,对双曲面球型减隔震支座和大阻尼双曲面球型减隔震支座的使用情况进行对比分析,并进行大阻尼双曲面球型减隔震支座试验,结果均表明大阻尼双曲面球型减隔震支座具有更好的减震性能。
In order to satisfy the seismic design of long-span continuous girder bridge in high intensity seismic area, this paper takes into consideration of the seismic displacement of the bridge support, the effect of seismic isolation and the value of bearing elevation. The triple friction pair hyperboloid sphere type seismic isolation bearing and viscous damper are integrated in the design to form a large resistance hypoid sphere type seismic isolation bearing, so as to achieve the effect of structural integration and functional integration of the two components. Through the establishment of the finite element calculation model, it compares and analyzes the use of the hyperboloid sphere type and the large damping hyperboloid sphere bearings, and carries out the test of the large damping hyperboloid sphere bearings. The results show that the large damping hyperboloid sphere bearings have better damping performance.
出处
《现代城市轨道交通》
2019年第12期56-60,共5页
Modern Urban Transit
关键词
桥梁
双曲面球型减隔震支座
黏滞阻尼器
大阻尼
结构集成
功能集成
bridge
hyperboloid sphere resistance control bearing
viscous damper
big damping
structural integration
functional integration
作者简介
郑娜(1984—),女,工程师。
