2012 Fiscal Year Final Research Report

Development of bridge vibration evaluation system by using physiological information

Research Project

Project/Area Number	22560471
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Single-year Grants
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)	2010 – 2012
Keywords	橋梁振動 / 歩道橋 / 生体脈波 / リアプノフ指数 / 振動加速度
Research Abstract	It is important to propose the evalutation technique of influence which a human body receives due to variety bridge vibration. In this study, the experiment to measure physiological information of pedestrian bridges user was performed in order to propose evaluation technique of serviceability of pedestrian bridges. In the experiment, the vibration of both pedestrian bridges and user were measured simultaneously, the relation of both vibration characteristic and the biological pulse wave have been investigated. As the result, it is found that the user's displeasure also becomes larger as displacement amplitude of pedestrian bridges becomes large, and the biological pulse wave of user changes a lot when user's walking pace is in agreement with natural frequencies of pedestrian bridges.

(3 results)