大跨径钢桥面铺装典型结构路用性能评价与研究

大跨径钢桥面沥青混凝土铺装材料的性能对行车舒适性及面层材料的耐久性有重要的影响。在了解各类铺装材料特性和适用性的基础上,提出了3种典型铺装结构方案。并以舟山西堠门大桥为项目依托,对钢桥面铺装3种复合铺装结构的高温稳定性、低温弯曲性能、疲劳性能以及防水性能进行了综合研究,对比了3种复合铺装结构的性能差异。在进行疲劳性能分析时,根据有限元分析结果,创新性地建立了室内组合结构疲劳分析试验模型。通过试验验证了3种复合铺装结构作为钢桥面铺装的综合技术性能,为今后的桥面铺装工程提供了一定的理论基础。

Evaluation and Research on Road Performance of Long Span Steel Deck Pavement Structures

The performances of the asphalt concrete pavement materials on the long span steel deck have great influence on riding comfort and the surface material durability.Three typical composite pavement structures are proposed based on the knowledge of properties and applicability of all kinds of pavement materials and the high-temperature stability,low-temperature bending performance,fatigue performance and water resistance of the mentioned three composite pavement structures are comprehensively studied and the performance differences of them are compared,based on Zhoushan Xihoumen Bridge.Indoor composite-structure fatigue analysis testing model is established according to the finite element analysis,and the technical performances of the three composite pavement structures as steel deck pavement structure are proved,which provided certain theoretical basis for deck pavement engineering.