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Research on Instability Monitoring Methods and Instability Monitoring Components for Steel Structures(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2006年03期
Page:
21-
Research Field:
Publishing date:
2006-09-20

Info

Title:
Research on Instability Monitoring Methods and Instability Monitoring Components for Steel Structures
Author(s):
DENG Chang-gen;  WU Jian-hua;  GAN Dong-hua
Department of Architectural Engineering, Tongji University, Shanghai 200092, China
Keywords:
instability monitoring;  vibration monitoring;  steel sleeving compression member;  joint-dent monitoring;  snap-through monitoring;  steel structure
PACS:
TU391
DOI:
-
Abstract:
In order to prevent the catastrophic instabilities damage of steel structures, the methods of structural health monitoring and damage diagnostics were extended into the field of instability monitoring of steel structures, based on the relationships between structural instabilities and structural responses or their characteristic parameters. The methods of instability monitoring of steel structures were overviewed and classified as monitoring based on the varying tendencies of strains and displacements, monitoring based on the correlations between vibration and instabilities, monitoring based on the varying rates of the enclosed volume of thin shells, and monitoring and controlling based on the portents of instabilities. Furthermore, conceptual designs of three instability monitoring components were illustrated briefly, including compression-force monitoring of steel sleeving members, joint-dent monitoring of shallow arches and reticulated shells, snap-through instability monitoring of shallow arches and shells. Finally, the characteristics and existing problems of instability monitoring methods were summarized.

References:

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Last Update: 2006-09-20