Development of evaluation system of serviceability of pedestrian bridges by using physiological information

2015 Fiscal Year Final Research Report

• Project/Area Number: 25420475
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Structural engineering/Earthquake engineering/Maintenance management engineering
• Research Institution: Ibaraki University
• Principal Investigator: HARADA Takao 茨城大学, 工学部, 准教授 (00241745)
• Co-Investigator(Renkei-kenkyūsha): YOKOYAMA KOICHI 茨城大学, 名誉教授 (20302325)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 横断歩道橋 / 振動使用性 / 生体脈波 / リアプノフ指数

Outline of Final Research Achievements

It is most important to propose the evaluation technique of the unpleasantness which a human body receives due to bridge vibration. In this study, the experiment to measure physiological information was performed in order to propose evaluation technique of serviceability of pedestrian bridges. In the experiment, the vibration of both pedestrian bridges and pedestrians were measured simultaneously, and the relation of both vibration characteristic and the biological pulse wave have been investigated. As the result, it is found that the Lyapunov exponent of biological pulse wave could be used as an index for evaluating the unpleasant bridge vibration which pedestrians feel.

Free Research Field

構造工学、維持管理工学