十字摩擦摆支座设计验证与应用分析  

Design Verification and Application Analysis of Orthogonal FPB

作　　者：陈忠海[1] 桂长忍[1] 赵前进[2] 宁响亮[1] 夏俊勇[1] 彭泓龙 CHEN Zhonghai GUI Changren ZHAO Qianjin NING Xiangliang XIA Junyong PENG Honglong(Zhuzhou Times New Material Technology Co., Ltd.,Zhuzhou Hunan 412007, China Kunming Railway Administration, Kunming Yunnan 650000, China)

机构地区：[1]株洲时代新材料科技股份有限公司,湖南株洲412007 [2]昆明铁路局,云南昆明650000

出　　处：《铁道建筑》2017年第3期36-38,49,共4页Railway Engineering

摘　　要：提出了一种新型结构的十字摩擦摆支座结构,其位移由2个十字交叉方向的滑移拟合而成,给出了其水平屈后刚度的计算式并对其等效摩擦系数进行了分析。通过设计建模、有限元分析及实体试验,验证了该结构的可行性,且能达到双球面摩擦摆支座的性能。在不同方向可以十分便捷地设计成不同的位移与水平屈后刚度,尤其适用于连续梁长大桥等纵横向自振周期相差较大的工程结构。A new type of structure bearing orthogonal FPB （Friction Pendulum Bearing） was introduced in this paper. The displacement of vector synthesis is composed by two cross directions. The formula for calculating the stiffness of horizontal yield was given to analyze the equivalent friction coefficient. The feasibility of structure was verified by the design modeling, finite element analysis and solid test, which could meet the performance of double spherical friction pendulum bearing. In different directions, the bearing can be easily designed for different displacements and horizontal yield stiffness. It is especially used for the large difference project between vertical and horizontal natural vibration period, including continuous girder super large bridge.

关 键 词：桥梁 减隔振 十字摩擦摆支座 有限元分析 等效摩擦系数 结构设计 

分 类 号：U443.36[建筑科学—桥梁与隧道工程]