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Experimental Investigation and Damage Identification of High-Pile Wharf Framed Bents under Horizontal Impact Loads

Authors :
Yonglai Zheng
Fei Xiao
Ruxue Zhang
Tanbo Pan
Xin Lan
Xubing Xu
Chenyu Hou
Source :
Sensors, Vol 24, Iss 2, p 563 (2024)
Publication Year :
2024
Publisher :
MDPI AG, 2024.

Abstract

This study investigates damage characteristics, dynamic structural performance changes, and quantitative damage assessment of high-pile wharf framed bents exposed to horizontal impact loads. Through extensive testing of wharf framed bents under such loads, a damage identification approach based on stiffness, natural vibration period, and acceleration data derived from experiments is presented. The findings reveal that under horizontal impact loads, framed bents initially exhibit tensile damage and leaning piles, followed by short straight piles. Additionally, structural damage results in a reduced self-oscillation frequency and an increased amplitude decay rate. Both stiffness-based and cycle-based damage indicators effectively track the cumulative damage progression of the structure. However, the cycle-based damage indicators demonstrate superior stability and accuracy, while acceleration-based indicators precisely identify the moment of damage mutation. This research contributes to enhancing local components, implementing damage identification methods, and advancing health monitoring practices in high-pile wharf projects, aligning with the standards of scientific publications in the field.

Details

Language :
English
ISSN :
14248220
Volume :
24
Issue :
2
Database :
Directory of Open Access Journals
Journal :
Sensors
Publication Type :
Academic Journal
Accession number :
edsdoj.9885f0b036444e0a85ae1d5ca35f9dc7
Document Type :
article
Full Text :
https://doi.org/10.3390/s24020563