混凝土框架-复合材料板组合护岸结构的受力机理与设计方法

项目名称： 混凝土框架-复合材料板组合护岸结构的受力机理与设计方法

项目编号： No.51308288

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 建筑科学

项目作者： 王俊

作者单位： 南京工业大学

项目金额： 25万元

中文摘要： 在前期复合材料结构制备工艺与力学性能研究工作基础上，提出采用高强纤维，通过创新的结构构造与合理的材料组合，形成新型混凝土框架-复合材料板组合护岸结构，具有耐腐蚀、绿色环保、高效安全、可设计性强等显著优点，而且与斜坡护岸相比可节约土地资源。 针对该新型护岸结构在工程应用中需要重点解决的关键科学问题，本课题从构件和体系两个层次来研究护岸结构的创新构型与组合理论；探索土压力作用下护岸结构各组成部分的协同作用机理、荷载传递途径和力学简化模型；考虑复合材料粘弹性能，研究护岸结构长期变形对土压力的影响及结构受力行为反演；在上述研究基础上，提出以变形控制目标的护岸结构两级优化算法，并建立综合考虑纤维铺层、组分材料、组合方式、连接及受荷条件等因素的护岸结构设计理论，为其在航道建设、桥梁与路堤防护、港口工程等领域的大规模推广应用奠定理论基础与设计依据。

中文关键词： 复合材料；混凝土框架；护岸；受力机理；设计方法

英文摘要： Based on the former research on fabrication technology and mechanical behavior of composites structures, the study presents a new form of bank protection structure with concrtete frame-composite plate in which high strength fibres are combined with reasonable materials through innovative construction. The structure possesses several advantages such as good corrosion resistance, environment friendly, high efficiency and safety. Moreover it can conserve land resources compared with traditional slpoing bank protection. According to the key scientific problems in engineering application, the innovative structure and systems will be studied as well as their combination theory. Then the common mechanism of components of bank protection structure will be discussed to determine the load transfer path, and simplified mechanical model under the lateral earth pressure. Based on the theory of composite viscoelastic mechanics, the effect of long-term performance of the bank protection structure on the lateral earth pressure will be investigated, thus the mechanics behaviors can be retrieved. Therefore a double-level optimal algorithm will be studied to control the lateral deformation of bank protection structure. Considering the effects of fiber layers, materials of components, combination modes, connections and load condit

英文关键词： Composite；Concrete frame；Bank protection；Mechanism；Design method