Human shaker for dynamic test of civil structures
Dynamic test of as-built civil structures is a common practice to learn the dynamic properties of real structures,to improve accuracy of prediction methods and to update analysis models adopted at the design stage.Large,cumbersome and power-needed mechanical shakers are generally necessary in the test to dynamically excite a structure.This test methodology,however,may not be tenable for low-rise,medium and small size buildings due to various reason such as budget,limited installation space and power supply issue.Considering the fact that human can be treated as an intelligent and optimized mechanical system.This study investigates using human,by his/her activities like walking,jumping,running and bouncing,as a mechanical shaker for dynamic test of civil structures.Experiments using force plates were first conducted to develop relationship between humaninduced forces and acceleration measurements of intelligent wearable sensors.The dynamic properties,e.g.natural frequencies and modal damping ratios,can be identified by measured frequency response functions.Field test of an eight-storey steel frame structure demonstrates the application of the human shaker idea.
Human shaker human-induced loads wearable sensors lateral acceleration ground reaction force
Ziping Han Jun Chen
Department of Structural Engineering,Tongji University,Shanghai,China
国际会议
The 7th World Conference on Structural Control and Monitoring(7WCSCM)(第七届结构控制与监测世界大会)
青岛
英文
2497-2505
2018-07-22（万方平台首次上网日期，不代表论文的发表时间）