STUDY ON STRUCTURAL DAMAGE IDENTIFICATION BASED ON THE RELATIVE ELEMENT STIFFNESS COEFFICIENT

Du Yongfeng; Li Zhuohang; Li Hui

doi:10.13204/j.gyjz201308008

Volume 43 Issue 8

Dec. 2014

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Du Yongfeng, Li Zhuohang, Li Hui. STUDY ON STRUCTURAL DAMAGE IDENTIFICATION BASED ON THE RELATIVE ELEMENT STIFFNESS COEFFICIENT[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(8): 39-42. doi: 10.13204/j.gyjz201308008

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STUDY ON STRUCTURAL DAMAGE IDENTIFICATION BASED ON THE RELATIVE ELEMENT STIFFNESS COEFFICIENT

doi: 10.13204/j.gyjz201308008

1.
1. Institute of Earthquake Protection and Disaster,Lanzhou Univ.of Tech,Lanzhou 730050,China;
2.
2. Western Center of Disaster Mitigation in Civil Engineering of Ministry of Education,Lanzhou Univ.of Tech,Lanzhou 730050,China

Received Date: 2013-03-20
Publish Date: 2013-08-20

Abstract

Abstract

A kind of damage identification method was proposed based on relative element stiffness coefficient.Damage index of structure was defined as the ratio of the variation of relative element stiffness to the undamaged one, relative element stiffness was a function of modal parameters.Then, utilizing the modal parameter, damage of structure can be identified clearly.On the basis of soft Simulink, a structure was used to demonstrate the feasibility of the presented method, the relative stiffness of damaged and undamaged structure was calculated, and then damage index was required as defined.The results showed that the method could efficiently identify the damage position and degree of structure.
- damage identification,
- modal parameter identification,
- Bayesian modal parameter identification,
- multiplesite damage (MSD)

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References(7)

References

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