【作者】 陈太泉；

【导师】 王佶；

【作者基本信息】 武汉理工大学 ， 结构工程， 2007， 硕士

【摘要】 目前，桥面铺装层结构破坏已成为高等级公路主要病害之一，严重影响了行车安全与舒适性，造成了巨大的经济损失。为此，本文结合湖北省交通厅科技项目“桥面铺装材料组成及结构设计研究”，以抑制或减少铺装层病害的发生，改善铺装层的服务质量为目标，对此展开了系统的分析和研究。首先，研究总结了国内外关于水泥混凝土桥沥青铺装层的研究概况，并对省内水泥混凝土桥沥青铺装层进行调查，针对桥面铺装层的主要病害类型，进行了原因分析，并提出了铺装层相应的设计控制指标。其次，采用有限元分析软件，建立几种典型结构形式的水泥混凝土桥梁力学分析模型。其中，充分考虑铺装层与桥面板间的连续状态，引入层间连续状态模拟层，通过计算分析，确定了模拟层部分连续状态计算参数，使得计算模型更加合理。之后，对铺筑于上述各典型桥型的桥面铺装层进行了受力特性分析。结果表明：车辆荷载作用位置以及桥梁结构形式对桥面铺装层内力的影响十分有限。基于该结论，为使后续的分析简便化并具备普遍意义，本文将各桥梁模型统一，并进行修正和检验，建立了水泥混凝土桥沥青铺装层的统一分析模型。再次，采用前述统一分析模型，并以桥面铺装层各病害类型的设计控制指标为分析对象，探索其沿铺装层厚度方向的分布规律，明确桥面铺装各结构层的层位力学分工，对其选材提出相应的功能要求。同时，分析了铺装层结构和材料参数的变化对铺装层抵抗各种病害性能的影响，总结出避免或减少桥面铺装层病害的材料和结构方面的技术措施和原则。最后，根据铺装层层位分工论，并针对当前桥面铺装层设计中，结构组合设计材料组成设计存在脱节的现象，提出了沥青混凝土铺装层结构与材料统一的设计方法。同时，结合工程实际以及前述的技术措施和原则，拟定各种桥面铺装层材料和结构组合形式，并通过计算分析，最终确定了抗病害性能较佳的桥面铺装层结构组合形式。更多还原

【Abstract】 At present, the structural disarrangement of the bridge pavement becomes one of first-class highway main plant diseases, seriously has affected the traffic safety and comfortableness,and has created the huge economic loss. Therefore, this article unifies the Hubei Province transport department science and technology project "the pavement material composition and the structural design research", take suppresses or the reduced pavement plant disease occurrence, the improvement paving level grade of service as the goal, has launched the system analysis and the research.First, the research summarized the domestic and foreign research survey of the cement concrete bridge asphalt paving, and carries on the investigation to the cement concrete bridge asphalt paving of the province, in view of the main plant disease type of the bridge pavement, has carried on the reason analysis, and proposed the paving corresponding design control target.Next, uses finite element analysis software, establishes several kind of bridge mechanics analysis model. Among them, fully considered continual condition between the bridge paving and Bridge floor, introduction continual condition simulation layer, through the computation analysis, had determined the simulation layer part continual condition computation parameter, and causes the computation model to be more reasonable. Afterwards, the stress characteristic analysis has been carried on to the above various typical bridge pavements. The result indicated that, the influence of vehicles load position as well as the bridge structural style is extremely limited to the bridge paving endogen force. Based on this conclusion, for causes the following analysis simple and has the universal significance, this article is unified various bridges model, and carries on the revision and the examination, has established the cement concrete bridge asphalt paving unification analysis model.And then, uses the unification analysis model, and take various type of plant diseases design control target of the pavement flooring as the analysis object, explores it along the paving thickness direction distributed rule, to clear about the mechanics division of labor of various structures layer of the pavement, sets the corresponding function request to its selection. At the same time, has analyzed the influence of the change of bridge pavement structure and the material parameter to performance of the pavement resisting each kind of plant disease. Summarizes technical measure and the principle on avoiding or the reduction pavement plant disease material.Finally, according to the theory of paving layer division of labor, and aims at the phenomenon that in the current bridge pavement design, the structure combination design material composition design existence comes apart, proposed the asphalt concrete pavement design method which structure and the material are unification. At the sometimes, Full considerate the actual project and the technical measure and the principle which had Mentions. draws up each kind of flooring level form that material and the structure are combination , and through the computation analysis, has finally determined the combination form of pavement which has better anti-plant disease performance.更多还原