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SS级通用双梁装配式桥梁护栏的研发

Development and research of a SS-level universal double-beam assembled bridge barrier.

作者信息

Bu Qianmiao, Ning Xinpeng, Zhang Wen, Ma Lei

机构信息

Rioh Traffic Safety Co., Ltd., Beijing, 100088, China.

Xinjiang Academy of Transportation Sciences Co., Ltd., Ürümqi, 830000, China.

出版信息

Sci Rep. 2024 Feb 27;14(1):4794. doi: 10.1038/s41598-024-55587-4.

DOI:10.1038/s41598-024-55587-4
PMID:38413735
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10899255/
Abstract

A wide variety of bridge barriers are used on highways. The bearing capacities of different types of deck slabs are measured in this study by applying the yield line theory to determine the worst-case scenario. An improved configuration for the worst-case barrier base and deck slab is developed, namely the universal double-beam assembled bridge barrier, which can enhance the safety performance of exiting concrete-base bridge barriers. According to the simulated impact test results, the new barrier meets SS-level requirements in terms of containment, redirective, and buffering performance as specified in the Standard for Safety Performance Evaluation of Highway Barriers (JTG B05-01-2013). The barrier structure's compatibility with various bases is also analyzed. SS-level impact tests are conducted on real vehicles, including cars, buss, and trucks. The results show that the safety performance of the new barrier configuration reaches SS-level, and the barrier is universally compatible with concrete bases with a height of 63 cm and above.

摘要

高速公路上使用了各种各样的桥梁护栏。本研究通过应用屈服线理论来测量不同类型桥面板的承载能力，以确定最坏情况。针对最坏情况的护栏底座和桥面板，开发了一种改进的配置，即通用双梁装配式桥梁护栏，它可以提高现有混凝土底座桥梁护栏的安全性能。根据模拟冲击试验结果，新护栏在遏制、导向和缓冲性能方面符合《公路护栏安全性能评价标准》（JTG B05-01-2013）规定的SS级要求。还分析了护栏结构与各种底座的兼容性。对包括轿车、公交车和卡车在内的真实车辆进行了SS级冲击试验。结果表明，新护栏配置的安全性能达到SS级，并且该护栏与高度在63厘米及以上的混凝土底座普遍兼容。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cf09/10899255/329a29ac4540/41598_2024_55587_Fig18_HTML.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cf09/10899255/4c26d12c9a82/41598_2024_55587_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cf09/10899255/a2867c6859f0/41598_2024_55587_Fig10_HTML.jpg
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