Numerical study on the anti-collision performance of recycled foam concrete beam guardrail under vehicle collision

Recycled foam concrete (RFC) possessed excellent energy absorption capabilities and could be used in the anti-collision field. To address the insufficient anti-collision performance of existing guardrails, this paper presented a novel RFC beam guardrail by combining RFC with box-shaped steel shells. The quasi-static compressive tests and drop hammer impact tests were applied to analyze the static and dynamic mechanical characteristics of RFC with different densities and sand-cement ratios. Then, the vehicle collision performance of the RFC beam guardrail (RBG) and standard beam guardrail (SBG) was tested by LS-DYNA. The results showed that, compared with SBG, RBG had better guiding and energy absorption effects, reduced the peak vehicular acceleration by 44.15 % and the maximum guardrail displacement by 73.22 % during vehicle collisions, and mitigated the damage to the vehicle. Therefore, it is a viable way to utilize RFC to fabricate RBG, which could not only repurpose the construction and demolition wastes (CDW) but also acquire guardrails with enhanced anti-collision performance.

• Record URL:
  • https://doi.org/10.1016/j.cscm.2024.e03578
• Record URL:
  • http://www.sciencedirect.com/science/article/pii/S2214509524007290
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/22145095
• Supplemental Notes:
  • © 2024 The Authors. Published by Elsevier Ltd. Abstract reprinted with permission of Elsevier.
• Authors:
  • Liu, Yingjie
  • Zhang, Zinan
  • Fang, Hai
  • Zhang, Xinchen
  • Shao, Qi
  • Zhang, Qingling
• Publication Date: 2024-12

Language

• English

Media Info

• Media Type: Web
• Features: Figures; References; Tables;
• Pagination: e03578
• Serial:
  • Case Studies in Construction Materials
  • Volume: 21
  • Issue Number: 0
  • Publisher: Elsevier
  • ISSN: 2214-5095
  • Serial URL: http://www.sciencedirect.com/science/journal/22145095

Subject/Index Terms

• TRT Terms: Concrete; Foamed materials; Guardrails; Impact tests; Waste products (Materials)
• Subject Areas: Construction; Highways; Materials; Safety and Human Factors;

Filing Info

• Accession Number: 01927581
• Record Type: Publication
• Files: TRIS
• Created Date: Aug 20 2024 4:17PM