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Abstract

The Qipanzhou Changjiang River Highway Bridge is a super-large steel box girder suspension bridge. In accordance with standard specifications, it is necessary to install HA-level beam-column steel barriers that are reliable in safety protection performance and suitable for the bridge type to better protect the safety of operating vehicles and main structures of the bridge. By adopting theoretical analysis and computer simulation methods, this paper combined practical engineering conditions to conduct design and optimization research on the upper structure and foundation structure of HA-level beam-column steel barriers, obtaining the optimal barrier structure scheme. Additionally, it simulated the steel box girder bridge flange plate and barrier samples in a 1:1 ratio at the test site, and conducted full-scale impact tests with the most unfavorable vehicle model, with the effectiveness of the barrier structure scheme on the steel box girder bridge flange plate evaluated. The results indicate that the beam-column steel barrier structure based on the steel box girder bridge flange plate is safe and reliable, achieving HA-level protection capability. During the impact, there is no adverse influence on the steel box girder flange plate, meeting the requirements for the utilization of the main structure of the bridge. The results can improve the safety protection of Qipanzhou Changjiang River Highway Bridge, and provide design references and technical support for similar projects.

Publication Date

11-8-2022

DOI

10.14048/j.issn.1671-2579.2022.05.046

First Page

252

Last Page

256

Submission Date

April 2025

Reference

[1] 交通运输部公路科学研究院. 公路交通安全设施设计规范: JTG D81—2017[S]. 北京: 人民交通出版社, 2017. China Academy of Transportation Sciences. Design specification for highway safety facilities: JTG D81—2017[S]. Beijing: China Communications Press, 2017. [2] 裴大军, 彭晓彬, 龚帅, 等. 缆索承重桥梁专用高等级型钢护栏研发[J]. 中外公路, 2021, 41(3): 403-406. Pei Dajun, Peng Xiaobin, Gong Shuai, et al. Development of high-grade steel guardrails for cable-supported bridges [J]. Journal of Chinese and Foreign Highway, 2021, 41(3): 403-406. [3] 交通运输部公路科学研究院. 公路交通安全设施设计细则: JTG/T D81—2017[S]. 北京: 人民交通出版社, 2017. China Academy of Transportation Sciences. Design guideline for highway safety facilities: JTG/T D81—2017[S]. Beijing: China Communications Press, 2017. [4] 闫书明. 有限元仿真方法评价护栏安全性能的可行性[J]. 振动与冲击, 2011, 30(1): 152-156. YAN Shuming. Feasibility analysis of barrier safety evaluation with finite element simulation method[J]. Journal of Vibration and Shock, 2011, 30(1): 152-156. [5] 北京华路安交通科技有限公司.公路护栏安全性能仿真评价技术规程: T/GDHS 001—2020[S].2020. Beijing Hualu’an Transportation Technology Co., Ltd. Specifications for safety performance simulation evaluation of highway barriers: T/GDHS 001—2020[S].2020. [6] 北京深华达交通工程检测有限公司. 公路护栏安全性能评价标准: JTG B05-01—2013[S]. 北京: 人民交通出版社, 2013. Beijing Shenhuada transportation engineering testing Co., Ltd. The evaluation specification for way safety barriers: JTG B05-01—20133 [S]. Beijing: China Communications Press, 2013.

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