节点文献
桥梁支座高分子材料滑板摩擦性能试验研究
Research on the friction performance test of high polymer sliding plate for bridge bearing
【摘要】 针对桥梁支座高分子材料滑板摩擦性能试验,分析盆式支座和球型支座滑板结构及摩擦试验标准,依据JT/T 901—2023研究了在正应力45 MPa下,不同温度(23℃、0℃、-35℃)对3组盆式支座滑板静摩擦和动摩擦因数的影响;正应力30 MPa下,不同温度(23℃、0℃、-35℃)对3组球型支座滑板静摩擦和动摩擦因数的影响。结果表明:随着温度降低,两种滑板的静摩擦、动摩擦因数均变大,且变化率与温度成正比,在相同试验条件下,盆式支座滑板和球型支座滑板3组试样的静摩擦、动摩擦因数基本一致。
【Abstract】 Regarding the friction performance test of high polymer bridge bearing plates, the structures and friction test standards of tub-shaped sliding bearing plates and sliding spherical bearing plates are analyzed according to JT/T 901-2023, the effects of different temperatures of 23 ℃, 0 ℃, and-35 ℃ on the static and dynamic friction coefficients of three groups of tub-shaped sliding bearing plates under a normal stress of 45 MPa are studied; The influence of different temperatures of 23 ℃, 0 ℃, and-35 ℃ on the static and dynamic friction coefficients of 3 sets of sliding spherical bearing plates under a normal stress of 30 MPa is also investigated. The results show that, as the temperature goes down, the static and dynamic friction coefficients of the two types of sliding plate increase,and the gradient is in direct proportional to the temperature. Under the same testing condition, the static and dynamic friction coefficients of the three groups of samples with tub-shaped and spheroidal bearing plates are basically the same.
【Key words】 bridge bearing; high polymer; sliding plate; friction coefficient; experimental study;
- 【文献出处】 轨道交通材料 ,Materials for Rail Transportation System , 编辑部邮箱 ,2025年04期
- 【分类号】U444;U443.36
- 【下载频次】15