Damage detection of bridge girder pier system from modal data

• Autorzy: Roy S. , Chakraborty S. , Sarkar S. K.
• Języki publikacji: EN

Abstrakty

EN

The equation error based system identification method is found to be efficient for identifying the element properties directly without iterations. But its application is limited to truss type structures only. The equation of error approach of identification algorithm is extended here for a frame element to asses the existing damage of the bridge girder-pier system from simulated modal data. The problem is formulated as an optimization program where the error norm of the Eigen equation is minimized. A Monte Carlo based error sensitivity analysis is performed to investigate the behavior of the algorithm. Finally, the formulation is elucidated through a three span continuous bridge girder model simply supported on piers.

Słowa kluczowe

EN

damage detection; bridge girder; equation error; modal data; error sensitivity

PL

mechanika; diagnostyka uszkodzeń; mosty

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2005
• Tom: Vol. 10, no 4
• Strony: 679--688
• Opis fizyczny: Bibliogr. 10 poz., rys., tab., wykr.

Twórcy

autor

Roy S.

• Department of Civil Engineering Bengal Engineering and Science University (Formerly, Bengal Engineering College) Howrah 711103, West Bengal, INDIA

autor

Chakraborty S.

• Department of Civil Engineering Bengal Engineering and Science University (Formerly, Bengal Engineering College) Howrah 711103, West Bengal, INDIA

autor

Sarkar S. K.

• Department of Civil Engineering Bengal Engineering and Science University (Formerly, Bengal Engineering College) Howrah 711103, West Bengal, INDIA

Bibliografia

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