Study on Damage Diagnosis for High-piled Wharf Piles Based on Residual Force Vector

ZHANG Gan1 SUN Xi-ping1 WANG Qian2 ZHANG Qiang1

Journal of Vibration and Shock ›› 2016, Vol. 35 ›› Issue (4) : 188-192.

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PDF(1942 KB)
Journal of Vibration and Shock ›› 2016, Vol. 35 ›› Issue (4) : 188-192.

Study on Damage Diagnosis for High-piled Wharf Piles Based on Residual Force Vector

  • ZHANG Gan1   SUN Xi-ping1 WANG Qian2 ZHANG Qiang1 
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Abstract

 For the high-piled wharf piles existing superstructure ,It has not been proposed that a method is practical and feasible at home and abroad. According to the vibration differential equation, the residual force vector expression is deduced. The absolute value of residual force vector is defined as a damage diagnosis index. By establishing high-pile wharf frame finite element model and using the residual force vector method, run the numerical simulation for the pile of high-pile wharf damage diagnosis in a variety of conditions.Numerical simulation results show that it is sensitive to diagnose the damage of the high-piled wharf piles based on residual force vector. In the low order modes, structural damage can be identified rapidly and accurately. It provides a new idea for  diagnosis of high-piled wharf piles damage .

Key words

High-piled wharf piles / Ambient excitation / Finite element model / Residual force vector / Damage diagnosis

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ZHANG Gan1 SUN Xi-ping1 WANG Qian2 ZHANG Qiang1 . Study on Damage Diagnosis for High-piled Wharf Piles Based on Residual Force Vector[J]. Journal of Vibration and Shock, 2016, 35(4): 188-192

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