探讨聚氨酯材料在护栏断缝中的应用  

Discussion on the Application of Polyurethane Material in Guardrail Fracture Joint

作　　者：郑雪冰 ZHENG Xue-bing(Zhongjiao Lu Qiao Huadong Engineering Co.Ltd.,Shanghai 201210,China)

机构地区：[1]中交路桥华东工程有限公司

出　　处：《工程建设与设计》2020年第3期225-227,共3页Construction & Design for Engineering

摘　　要：公路桥梁钢筋混凝土防撞护栏,在其有效地保障了行车安全的同时,也避免了车辆的冲撞导致二次事故的发生,对车和人有着重要的保护作用。但与此同时,这些钢筋混凝土护栏大多数出现不同类型的裂缝,不但给其美观性带来了影响,也对防撞性能产生不同的影响。其中,钢筋混凝土护栏的贯通裂缝和断缝设置,降低了护栏整体性和安全使用性。在品质工程建设中,减少钢筋混凝土护栏裂缝和断缝带来的不利影响,对护栏施工又提出了更高的要求。Reinforced concrete anti-collision guardrail of highway bridge can not only effectively ensure the traffic safety, but also avoid the secondary accidents caused by vehicle collision, which plays an important role in protecting vehicles and people. But at the same time, most of these reinforced concrete guardrails have different types of cracks, which not only affect their aesthetics, but also have different impact on the anti-collision performance. Among them, the through cracks and broken joints of the reinforced concrete guardrail reduce the integrity and safety of the guardrail. In the construction of quality engineering, reducing the adverse effects of cracks and broken joints of reinforced concrete guardrails puts forward higher requirements for guardrail construction.

关 键 词：防撞护栏 贯通裂缝 品质工程 

分 类 号：U214.3[交通运输工程—道路与铁道工程]