Pre-design of laterally supported stair steps
作者: José SantosPedro AndradePatrícia Escórcio
作者单位: 1UMa – University of Madeira, FCEE – Faculty of Exact Sciences and Engineering, DECG – Department of Civil Engineering and Geology, 9020-105 Funchal, Portugal
2CONSTRUCT-LABEST, Faculty of Engineering (FEUP), University of Porto, Portugal
3University of Madeira, Portugal
刊名: Engineering Structures, 2019, Vol.182 , pp.51-61
来源数据库: Elsevier Journal
DOI: 10.1016/j.engstruct.2018.12.018
关键词: VibrationsImpulsive responseFoot discomfortAcceptance criteriaNumerical simulations
英文摘要: Abstract(#br)It is becoming increasingly common to design monumental staircases and their steps with elevated stiffness and low mass, obtaining high natural frequencies, off the range of frequencies that are excitable by pedestrians. However, this sometimes leads to unacceptable levels of vibration, with impulsive responses. In many cases the dynamic behaviour of steps is almost independent from the rest of the staircase, causing a phenomenon designated as local vibrations, which could be much more severe than the global vibrations of the staircase.(#br)In order to avoid this problem, this paper presents a simplified expression to pre-design stair steps which guarantee that excessive vibrations will not occur, without the need to perform a dynamic analysis. The expression was deduced...
全文获取路径: Elsevier  (合作)
影响因子:1.713 (2012)

  • discomfort 不舒适感
  • laterally 在侧面
  • stair 楼梯
  • supported 支承的
  • criteria 准则
  • steps 无扶手步梯
  • response 响应
  • design 设计