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简要介绍了在石安高速公路护栏改造研究中,采用静力和动力学理论、模型试验、计算机仿真技术等先进手段进行方案优选,并通过实车碰撞试验验证了两种不同防护能量的(93 kJ和160 kJ)护栏结构的可靠性。为目前乃至今后我国高速公路护栏改造,提供了一种安全、经济、方便、快捷的改造方案,不仅降低了护栏改造费用,减少了对运营的影响,同时也降低了运营期间恶性事故的发生,具有良好的经济效益及社会效益。
This paper briefly introduces the optimization of the guardrail of Shi - An Expressway, and adopts the advanced methods such as static and dynamic theory, model test and computer simulation technology to optimize the program, and verifies the effectiveness of two kinds of protective energy (93 kJ and 160 kJ) The reliability of the fence structure. It provides a safe, economical, convenient and quick retrofit plan for the present and even future retrofit of the highway guardrail in our country. It not only reduces the cost of guardrail retrofitting but also reduces the impact on operation, meanwhile, it also reduces the occurrence of vicious accidents during operation, Has good economic and social benefits.