TITLE:
Highway Concrete Guardrail Lifting Scheme and Safety Performance Verification
AUTHORS:
Ronggui Zhou, Yidan Xie, Jiangang Qiao
KEYWORDS:
Concrete Guardrail, Scheme Optimization, Simulation, Real Vehicle Collision, Safety Performance
JOURNAL NAME:
Journal of Transportation Technologies,
Vol.11 No.1,
December
30,
2020
ABSTRACT: In order to achieve the old
fence of reuse, improve the safety performance of guardrail, barrier structure
does not meet the requirements, make full use of the old concrete guardrail on
the basis of heightening, through computer simulation experiment were analyzed,
and optimization design, through the real car collision test, make the concrete
guardrail after heightening structure satisfies the requirement of the safety performance of
current specification. The results show that the protective performance of the
two guardrail schemes meets the requirements of the current guardrail
evaluation standards through the computer simulation experiment. Through the
optimized design of scheme 1, the actual car crash test proves that the
enhanced structure of Minhua TYPE II concrete guardrail can meet the
requirements of safety performance evaluation. The research results provide an
important basis for the transformation of the guardrail and the revision of the current design of
expressway in China.