铁道标准设计2026，Vol.70Issue(1)：218-224,7.DOI:10.13238/j.issn.1004-2954.202311090001
时速250km高铁全高站台门气动荷载与结构响应特性试验研究
Experimental Study on Aerodynamic Load and Structural Response Characteristics of Full-Height Platform Screen Doors in High-Speed Railway at 250 km/h
摘要
Abstract
This study aims to further investigate the characteristics of aerodynamic load and structural response of full-height platform screen doors in high-speed railways,thereby providing a basis for the structural design of platform screen doors.A field test on the aerodynamic effects of a high-speed train passing through a station was conducted at an underground station(with four tracks and two island platforms)designed for 250 km/h.The test data on the aerodynamic load and structural response of the full-height platform screen doors were obtained.The characteristics and generation mechanisms of aerodynamic load were analyzed,and the effects of train passing speed,platform screen door position,and other factors on aerodynamic load and structural response were discussed.The results showed that:(1)when the train passed through the station at high speed,the pressure on both the inner and outer sides of the full-height platform screen door experienced multiple pressure fluctuations with significantly different amplitudes.Therefore,the aerodynamic load should be considered as the pressure difference between the two sides.(2)The maximum aerodynamic load of the platform screen door occurred when the train passed the measurement point,while the aerodynamic load caused by the pressure waves generated at the tunnel entrance and exit was relatively small.(3)The aerodynamic load on the platform screen door increased with higher train passing speeds.When the train passed at 250 km/h,the maximum aerodynamic load was approximately 1.1 kPa.(4)The aerodynamic load caused elastic deformation of the platform screen door glass.The temporal variation pattern of the deformation was consistent with that of aerodynamic load.At a passing speed of 250 km/h,the maximum elastic deformation reached 7.07 mm.(5)The vibration of the platform screen door structure caused by aerodynamic load exhibited distinct low-frequency impulse characteristics.The dominant vibration frequencies of pillar and glass were approximately 40 Hz and 15 Hz,respectively.The glass vibration had lower frequencies and larger amplitudes.关键词
高速铁路/全高站台门/气动荷载/结构响应/现场试验Key words
high-speed railway/full-height platform screen door/aerodynamic load/structural response/field test分类
交通工程引用本文复制引用
蒋尧,刘舫泊,杨吉忠,金旭炜,刘峻屹..时速250km高铁全高站台门气动荷载与结构响应特性试验研究[J].铁道标准设计,2026,70(1):218-224,7.基金项目
四川省科技计划项目(2019YFG0040) （2019YFG0040）
