中外公路2026，Vol.46Issue(2)：232-238,7.DOI:10.14048/j.issn.1671-2579.2026.02.025
波形梁护栏与组合式桥梁护栏免翼墙过渡研究
Research on Wing-Wall-Free Transition between W-Beam Guardrail and Combined Bridge Guardrail
姜广伦 1尚钟平 2张银江 3吴俊宏 2李振 4钱俊3
作者信息
- 1. 山东高速云南发展有限公司,云南 昆明 650000
- 2. 北京深华科交通工程有限公司,北京市 100071
- 3. 昆明新机场高速公路建设发展有限公司,云南 昆明 650000
- 4. 山东省高速养护集团有限公司,山东 济南 250000
- 折叠
摘要
Abstract
To address the transition problem between the W-beam guardrail and the combined bridge guardrail during the upgrading and reconstruction of in-service highway guardrails,an SB-level wing-wall-free transition section with simple construction and high efficiency was proposed.Computer simulation technology was adopted to study the stiffness transition,height transition,and cross-section transition of the wing-wall-free transition section.The guardrail stiffness transition was achieved by optimizing the column spacing and column cross-sectional dimensions.By comparing the contact area between the vehicle and the guardrail and the vehicle redirection situation under different height differences,it was preliminarily determined that the vehicle can be safely redirected when the height difference of the guardrail is less than 15 cm.On this basis,a collision simulation analysis was conducted on the specific scheme of the wing-wall-free transition section,and its protection performance was further verified through a real vehicle collision test.The test results indicate that the structure can achieve the SB-level protection capacity stipulated by the standard.关键词
护栏/过渡/免翼墙/计算机仿真/刚度过渡/高度过渡/实车碰撞Key words
guardrail/transition/wing-wall-free transition/computer simulation/stiffness transition/height transition/real vehicle collision分类
交通工程引用本文复制引用
姜广伦,尚钟平,张银江,吴俊宏,李振,钱俊..波形梁护栏与组合式桥梁护栏免翼墙过渡研究[J].中外公路,2026,46(2):232-238,7.
