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Damage ldentification of Substation Gantry Structures UsingMethod of Element Modal Strain Energy
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[1]ZHANG Meng,ZHAO Gui-feng,QIN Zhi-wei,et al.Damage ldentification of Substation Gantry Structures UsingMethod of Element Modal Strain Energy[J].Journal of Zhengzhou University (Engineering Science),2013,34(06):99-103.[doi:10.3969/j.issn.1671-6833.2013.06.024]
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Journal of Zhengzhou University (Engineering Science)[ISSN 1671-6833/CN 41-1339/T] Volume: 34卷 Number of periods: 2013 06 Page number: 99-103 Column: Public date: 2013-12-30
Title:
Damage ldentification of Substation Gantry Structures UsingMethod of Element Modal Strain Energy
Author(s):
ZHANG Meng; ZHAO Gui-feng; QIN Zhi-wei; LI Tian
School of Civil Engineering ，Zhengzhou University，Zhengzhou 450001 ，China
Keywords:
Key words:transformer substations; substation gantry structures;  element modal strain enery change rate; damage identification
CLC:
U392.6
DOI:
10.3969/j.issn.1671-6833.2013.06.024
Abstract:
In this paper，a study on the damage identification analysis of steel gantry structures in large-scalesubstations is put out.The damage diagnosis of steel gantry structures with different damage degree and dffer-ent damage sites are discussed based on the method of element modal strain energy change rate. The resultsshow that，modal strain energy change rate is a sensitive indicator index and it can be used to identify thedamages for the steel substation gantry structure simply and effectively.
References:
[1]李天,张猛,张哲,等.数值积分法计算受损伤圆钢管轴压杆件极限承载力[J].郑州大学学报:工学版,2004,25( 1):11 -15.
[2]孙洪波,曹志民,刘鹏伟.河南省电网变电站建(构)筑物可靠性分析与评价研究[ J].河南电力, 2005( 3 ) :5 - 8.
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