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Condition Assessment of Structures Using Vibration Technique

Sajal Tiwari, Rahul Rathore

Abstract


Structural Health Monitoring grasps the Promise for enhancing the structural performance with an outstanding cost/benefit ratio. Condition assessment is a technique used in health monitoring in the damage detection, to ensure the serviceability and the durability of the structures. In the present report, condition assessment of the structures using low frequency technique is being completed through experimental modal analysis and computational analysis software ANSYS 9.0 over structural elements beam and steel frame. The chief objective of the present study is to recognize the damage induced in the structures using low frequency techniques, to locate the damage location and determine the severity of the damage, so that the life span of the structures can be evaluated and maintenance cost can be reduced.

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A.E. Aktan, A.J. Helmicki, V.J. Hunt. Issues in health monitoring for intelligent infrastructure, J Smart Mater Struct. 1998; 7(5): 674–992p. [2] A.E. Aktan, A.J. Helmicki, V.J. Hunt. Structural identification for condition assessment experimental, J Smart Mater Struct. 1998; 7; 567–98p. [3] ANSYS Inc. (2000), ANSYS Realease Documentation: User’s Manual for Rev 9.0. [4] ANSYS Inc. (2000), ANSYS Release Documentation: Basic Analysis Procedure for Rev 9.0. [5] ANSYS Inc. (2000), ANSYS Realease Documentation: Dynamic Analysis Procedure for Rev 9.0. [6] C.R. Farrar, D.A. Jaurerui. Comparative study of damage identification algorithms –numerical study, J Smart Mater Struct. 7(5): 720– 31p. [7] M.R. Chowdhury. “Experimental modal testing and analysis of continuously supported structures”, In: Proceedings, 8th International Modal Analysis Conference. Florida, 1990, 109–14p. [8] S.W. Doebling, C.R. Farrar, R. Goodman. Effects of measurements statistics on the detection of damage in the Alamosa Canyon Bridge, Modal Analysis Conference. Orlando, FL, 1997. D.J. Ewing. Modal testing: Theory and Practice. New York: Wiley; 1985. [10] F.D. Ju, M. Mimovich. Experimental diagnosis of fracture damage in structures by the modal frequency method, Modal Test Anal. 1987; 203: 29–36p. [11] S. Khanna, A.A. Mufti, B. Bakht. Experimental investigation of the role of reinforcement in the strength of concrete decks slabs, Can J Civil Eng. 1999; 9(3): 475–80p. [12] A.A. Mufti. Guidelines for Structural Health Monitoring. Design Manual No. 2, ISIS Canada Research Network, Winnipeg, Manitoba, Canada. Vol. 5393: 55-65, San Diego, California, USA. [13] N.M.M. Maia, H. Cornwel. Theoretical and experimental modal analysis, Research Studies Press Ltd., Baldock, U.K. J Struct Eng. 1997; 117: 161–73p. [14] A.K. Pandey, M. Biswas, M.M. Samman. Damage detection from

changes in curvature mode shape, J Sound Vibrat. 1991; 145(2): 321–32p. [15] A.K. Pandey, M. Biswas. Damage detection from changes in flexibility, J Sound Vibrat. 1994; 175: 89–104p. [16] O.S. Salawu, C. Williams. A review of full-scale dynamic testing of bridge structures, Eng Struct. 1995; 17(2): 113–21p. [17] N. Stubbs, J.-T. Kim. Field verification of a nondestructive damage localization and severity estimation algorithm, Texas A&M University Report prepared for New Mexico State University. 1994. [18] D.C. Zimmerman, M. Kaouk. Structural Damage detection using a minimum rank update theory, J Acoust. 1994; 116: 222–31p. [19] C.R. Farrar, D.A. Jauregui. Comparative study of damage identification algorithms applied to a bridge: I. experiment, J Smart Mater Struct. 1998; 7(5): 704–19p




DOI: https://doi.org/10.37628/jgget.v3i1.185

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