Paper Title:
Measurement of Bridge Fundamental Frequency by Resistance Strain Gauges
  Abstract

Normally, the structural fundamental frequency can be got from the vibration tests by means of accelerometers or velocimeters linked with the dynamic signal measuring and analysis system. Based on the principle of reinforcement strain variation synchronized with the structural vibration, the paper introduces a new method to obtain the fundamental frequency of bridge by measuring the environmental dynamic strains of resistance strain gauges bonded on the reinforcing bars of bridge hinge and deck pavement. The real-time strain signals caused by vehicles passed on the bridge were recorded by the dynamic signal measuring and analysis system, and transformed into strain spectrum by fast Fourier transformation in which the fundamental frequency was got. The result was the same as that of velocimeter measuring. Therefore, the bridge fundamental frequency can be simply and accurately measured by the resistance strain gauges.

  Info
Periodical
Advanced Materials Research (Volumes 123-125)
Edited by
Joong Hee Lee
Pages
831-834
DOI
10.4028/www.scientific.net/AMR.123-125.831
Citation
S. B. Zhao, J. H. Chen, J. T. Yao, S. W. Pei, "Measurement of Bridge Fundamental Frequency by Resistance Strain Gauges", Advanced Materials Research, Vols. 123-125, pp. 831-834, 2010
Online since
August 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Yan Zeng
Chapter 4: Innovation in Bridge and Underground Engineering
Abstract:Static load test was carried out on Hengshui interchange ramp bridge of Lin-Chang expressway. The superstructure of the bridge is...
694
Authors: Xiao Dong Chen, Xia Ping Liu, Zhuo Sun, Ka Hong Cai, Hong Yang
Chapter 6: Industrial and Civil Engineering
Abstract:In this paper, based on the Guangzhou Pazhou Bridge ,the acceleration and dynamic deflection was tested synchronously under normal operating...
984
Authors: Rok Kamnik, Boštjan Kovačič, Andrej Štrukelj, Nikolay Vatin, Vera Murgul
Chapter 5: Applied Mechanics in Material Science, Static and Dynamic Loads of Structures and Facilities
Abstract:Practical approach of strain gauges using is introduced. The use of strain gauges and signal processing of measured data at static...
903