Determination ofmodal parameters ofa cable-stayed bridge using continuous wavelet transformation

C. H. Chen; Chiung-Shiann Huang; C. I. Ou

Determination ofmodal parameters ofa cable-stayed bridge using continuous wavelet transformation

C. H. Chen, Chiung-Shiann Huang, C. I. Ou

Department of Civil Engineering

Research output: Contribution to conference › Paper › peer-review

1 Scopus citations

Abstract

This paper develops a continuous wavelet transform algorithm to identify the dynamic parameters of a cable-stayed bridge under environmental wind field. Using such a technique, the dynamic characteristics of the Kao Ping Hsi cable-stayed bridge in Taiwan will be determined. The natural frequencies, damping ratios, and modal shapes identified from the ambient vibration test will be compared with those used in the finite element analysis. A comparison of the identified results with the finite element results shows a reasonable match for first five modes in three directions, respectively, vertical, lateral, and torsional directions. Then, the rational finite element model of Kao Ping Hsi cable-stayed bridge can be established. The results obtained herein will be used as the initial conditions for assessing the long-term safety of the Kao Ping Hsi cable-stayed bridge.

Original language	English
State	Published - Nov 2008
Event	11th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC-11 - Taipei, Taiwan Duration: 19 Nov 2008 → 21 Nov 2008

Conference

Conference	11th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC-11
Country/Territory	Taiwan
City	Taipei
Period	19/11/08 → 21/11/08

Keywords

Cable-stayed bridge
Field test
Modal identification
Wavelet transform

Cite this

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title = "Determination ofmodal parameters ofa cable-stayed bridge using continuous wavelet transformation",

abstract = "This paper develops a continuous wavelet transform algorithm to identify the dynamic parameters of a cable-stayed bridge under environmental wind field. Using such a technique, the dynamic characteristics of the Kao Ping Hsi cable-stayed bridge in Taiwan will be determined. The natural frequencies, damping ratios, and modal shapes identified from the ambient vibration test will be compared with those used in the finite element analysis. A comparison of the identified results with the finite element results shows a reasonable match for first five modes in three directions, respectively, vertical, lateral, and torsional directions. Then, the rational finite element model of Kao Ping Hsi cable-stayed bridge can be established. The results obtained herein will be used as the initial conditions for assessing the long-term safety of the Kao Ping Hsi cable-stayed bridge.",

keywords = "Cable-stayed bridge, Field test, Modal identification, Wavelet transform",

author = "Chen, {C. H.} and Chiung-Shiann Huang and Ou, {C. I.}",

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language = "English",

note = "11th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC-11 ; Conference date: 19-11-2008 Through 21-11-2008",

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TY - CONF

T1 - Determination ofmodal parameters ofa cable-stayed bridge using continuous wavelet transformation

AU - Chen, C. H.

AU - Huang, Chiung-Shiann

AU - Ou, C. I.

PY - 2008/11

Y1 - 2008/11

N2 - This paper develops a continuous wavelet transform algorithm to identify the dynamic parameters of a cable-stayed bridge under environmental wind field. Using such a technique, the dynamic characteristics of the Kao Ping Hsi cable-stayed bridge in Taiwan will be determined. The natural frequencies, damping ratios, and modal shapes identified from the ambient vibration test will be compared with those used in the finite element analysis. A comparison of the identified results with the finite element results shows a reasonable match for first five modes in three directions, respectively, vertical, lateral, and torsional directions. Then, the rational finite element model of Kao Ping Hsi cable-stayed bridge can be established. The results obtained herein will be used as the initial conditions for assessing the long-term safety of the Kao Ping Hsi cable-stayed bridge.

AB - This paper develops a continuous wavelet transform algorithm to identify the dynamic parameters of a cable-stayed bridge under environmental wind field. Using such a technique, the dynamic characteristics of the Kao Ping Hsi cable-stayed bridge in Taiwan will be determined. The natural frequencies, damping ratios, and modal shapes identified from the ambient vibration test will be compared with those used in the finite element analysis. A comparison of the identified results with the finite element results shows a reasonable match for first five modes in three directions, respectively, vertical, lateral, and torsional directions. Then, the rational finite element model of Kao Ping Hsi cable-stayed bridge can be established. The results obtained herein will be used as the initial conditions for assessing the long-term safety of the Kao Ping Hsi cable-stayed bridge.

KW - Cable-stayed bridge

KW - Field test

KW - Modal identification

KW - Wavelet transform

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M3 - Paper

AN - SCOPUS:84870977020

T2 - 11th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC-11

Y2 - 19 November 2008 through 21 November 2008

ER -

Determination ofmodal parameters ofa cable-stayed bridge using continuous wavelet transformation

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