A new structural health monitoring system for real-time evaluation of building damage-Reference-Cited by-同舟云学术

A new structural health monitoring system for real-time evaluation of building damage

Published:2020 Issue: Volume:156 Page:05029
ISSN:2267-1242
Container-title:E3S Web of Conferences
language:
Short-container-title:E3S Web Conf.

Author:

Kusunoki Koichi

Abstract

The author has developed a new method for evaluating the seismic performance of existing structures from measured accelerations based on the capacity spectrum method. This involves comparing the performance curve, which is the equivalent nonlinear behavior of a simplified single-degree-of-freedom system, and the demand curve, which is the relationship between the response acceleration and displacement spectra. Two telecommunication towers in Japan were instrumented in 2016, and their responses during several earthquakes have been recorded. This paper discusses the evaluation of damage during the two earthquakes. Moreover, parameters such as the predominant period and the required performance are discussed. The proposed system evaluated both towers as being “elastic.” The damping ratios of the towers are very low, which caused the oscillations to continue for more than 5 min after the mainshock of each earthquake because of long-period components of the seismic motion

Publisher

EDP Sciences

Link

https://www.e3s-conferences.org/10.1051/e3sconf/202015605029/pdf

Reference19 articles.

1. Kusunoki K. and Teshigawara M.: Development of Real-Time Residual Seismic Capacity Evaluation System -Integral Method and Shaking Table Test with Plain Steel Frame-, the 13th world conference on earthquake engineering, CD-Rom (2004).

2. Kusunoki K., Elgamal A., Teshigawara M. and Conte J. P.: Evaluation of structural condition using Wavelet transforms, the 14th World Conference on Earthquake Engineering, CD-Rom (2008).

3. Kusunoki K., and Teshigawara M.: New Acceleration A Integration Method to Develop A RealTime Residual Seismic Capacity Evaluation System, Journal of Structural And Construction Engineering, No.569, 119–126 (in Japanese) (2003)

4. Kusunoki K., Tasai A., Teshigawara M.: Development of Building Monitoring System to Evaluate Residual Seismic Capacity after an Earthquake, the 15th World Conference on Earthquake Engineering, Digital (2012).

5. Kusunoki K.: Damage Evaluation of A Base- Isolated Building With Measured Accelerations During Tohoku Earthquake, the 16th World Conference on Earthquake Engineering, Digital (2016).