JOINT DISCREPANCY EVALUATION OF AN EXISTING STEEL BRIDGE USING TIME-FREQUENCY AND WAVELET-BASED APPROACH

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WALIA SURESH KUMAR; PATEL RAJ KUMAR; VINAYAK HEMANT KUMAR; PARTI RAMAN

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Journal Paper

Paper Information

Journal: INTERNATIONAL JOURNAL OF ADVANCED STRUCTURAL ENGINEERING Year:2013 | Volume:5 | Issue:- Page(s): 1-9

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Information Journal Paper

Title

JOINT DISCREPANCY EVALUATION OF AN EXISTING STEEL BRIDGE USING TIME-FREQUENCY AND WAVELET-BASED APPROACH

Author(s)

WALIA SURESH KUMAR | PATEL RAJ KUMAR | VINAYAK HEMANT KUMAR | PARTI RAMAN | Issue Writer Certificate

Keywords

STEEL TRUSS BRIDGE

FREQUENCY

POWER SPECTRAL DENSITY

SHORT-TIME FOURIER TRANSFORM

WAVELET PACKET TRANSFORM

Abstract

The objective of this study is to bring out the errors introduced during construction which are overlooked during the physical verification of the bridge. Such errors can be pointed out if the symmetry of the structure is challenged. This paper thus presents the study of downstream and upstream truss of newly constructed steel bridge using time-frequency and wavelet-based approach. The variation in the behavior of truss joints of bridge with variation in the vehicle speed has been worked out to determine their flexibility. The testing on the steel bridge was carried out with the same instrument setup on both the upstream and downstream trusses of the bridge at two different speeds with the same moving vehicle. The nodal flexibility investigation is carried out using POWER SPECTRAL DENSITY, SHORT-TIME FOURIER TRANSFORM, and WAVELET PACKET TRANSFORM with respect to both the trusses and speed. The results obtained have shown that the joints of both upstream and downstream trusses of the bridge behave in a different manner even if designed for the same loading due to constructional variations and vehicle movement, in spite of the fact that the analytical models present a simplistic model for analysis and design. The difficulty of modal parameter extraction of the particular bridge under study increased with the increase in speed due to decreased excitation time.

Cites

EXPERIMENTAL AND NUMERICAL EVALUATION OF WAVELET BASED DAMAGE DETECTION METHODOLOGIES

References

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APA: Copy

WALIA, SURESH KUMAR, PATEL, RAJ KUMAR, VINAYAK, HEMANT KUMAR, & PARTI, RAMAN. (2013). JOINT DISCREPANCY EVALUATION OF AN EXISTING STEEL BRIDGE USING TIME-FREQUENCY AND WAVELET-BASED APPROACH. INTERNATIONAL JOURNAL OF ADVANCED STRUCTURAL ENGINEERING, 5(-), 1-9. SID. https://sid.ir/paper/319754/en

Vancouver: Copy

WALIA SURESH KUMAR, PATEL RAJ KUMAR, VINAYAK HEMANT KUMAR, PARTI RAMAN. JOINT DISCREPANCY EVALUATION OF AN EXISTING STEEL BRIDGE USING TIME-FREQUENCY AND WAVELET-BASED APPROACH. INTERNATIONAL JOURNAL OF ADVANCED STRUCTURAL ENGINEERING[Internet]. 2013;5(-):1-9. Available from: https://sid.ir/paper/319754/en

IEEE: Copy

SURESH KUMAR WALIA, RAJ KUMAR PATEL, HEMANT KUMAR VINAYAK, and RAMAN PARTI, “JOINT DISCREPANCY EVALUATION OF AN EXISTING STEEL BRIDGE USING TIME-FREQUENCY AND WAVELET-BASED APPROACH,” INTERNATIONAL JOURNAL OF ADVANCED STRUCTURAL ENGINEERING, vol. 5, no. -, pp. 1–9, 2013, [Online]. Available: https://sid.ir/paper/319754/en

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