Journal of Dalian Maritime University >
2017 , Vol. 43 >Issue 1: 119 - 125
DOI: https://doi.org/10.16411/j.cnki.issn1006-7736.2017.01.019
Damage identification for suspender of concrete-filled steel tube arch bridge based on curvature mode
Received date: 2016-08-05
Revised date: 2016-10-08
Online published: 2016-10-10
In order to study the response of curvature mode parameter during the suspender damage, taking a concrete-filled steel tube arch bridge as study object, the damage identification of suspender was studied based on curvature mode. The finite element model was established by using ANSYS software and the dynamic characteristics were calculated. The conditions of suspender damage were simulated, and the curvature modes of structure were compared under different conditions. Result shows that the damage location of suspender can be identified by the index of curvature mode. The average index of curvature mode under multi-frequency vibration should be considered so as to improve the accuracy of damage identification, and the damage degree is preliminarily determined. The multiple suspenders damage can be considered as the accumulation of single suspender damage.
Key words： arch bridge; suspender; damage identification; curvature mode
SHAO Yuan , SUN Zong-guang , CHEN Yi-fei . Damage identification for suspender of concrete-filled steel tube arch bridge based on curvature mode[J]. Journal of Dalian Maritime University, 2017 , 43(1) : 119 -125 . DOI: 10.16411/j.cnki.issn1006-7736.2017.01.019
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