Influence of different combinations of impact mass and velocity with identical kinetic energy or momentum on the impact response of RC piles

Marine engineering structures may be subjected to various levels of vessel collisions, causing different degrees of damage to the RC piles. However, the influence of different combinations of impact mass and velocity under the same initial kinetic energy or momentum on the impact behavior of RC piles has not been explored. A numerical investigation of the impact responses of RC pile structures (including plumb piles and inclined pile groups) considering the material strain rate effect is carried out using the software ABAQUS/Explicit in this paper. Parametric studies are conducted based on the validated finite element models of RC piles subjected to horizontal impact. The internal force distributions, as well as the effect of the impact kinetic energy and the momentum (including different combinations of impact mass and initial velocity) on the impact response of RC piles, are discussed. The results indicate that the development path of the bending moment‒overall structural displacement curves in the plastic hinge regions of RC piles are almost identical under both impact and static loading conditions. Compared to momentum, the impact response of RC piles is insensitive to the variation of impact kinetic energy with different combinations of impact mass and velocity. Therefore, the impact kinetic energy is more suitable for evaluating the structural deformation of RC piles after impact. Finally, a performance-based impact-resistance design framework for RC piles is proposed.

• Record URL:
  https://doi.org/10.1016/j.marstruc.2023.103462
• Record URL:
  http://www.sciencedirect.com/science/article/pii/S0951833923000953
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/09518339
• Supplemental Notes:
  • © 2023 Elsevier Ltd. All rights reserved. Abstract reprinted with permission of Elsevier.
• Authors:
  • Ye, Jia-Bin
  • Wang, Ying-Tao
  • Cai, Jian
  • Chen, Qing-Jun
  • He, An
• Publication Date: 2023-9

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: 103462
• Serial:
  • Marine Structures
  • Volume: 91
  • Issue Number: 0
  • Publisher: Elsevier
  • ISSN: 0951-8339
  • Serial URL: https://www.sciencedirect.com/journal/marine-structures

Subject/Index Terms

• TRT Terms: Dynamic structural analysis; Impact loads; Offshore structures; Reinforced concrete; Support piles; Water transportation crashes
• Subject Areas: Bridges and other structures; Marine Transportation; Safety and Human Factors; Terminals and Facilities;

Filing Info

• Accession Number: 01885535
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 22 2023 9:49AM