精品文档---下载后可任意编辑钢管混凝土系杆拱桥动力分析及损伤识别的开题报告摘要钢管混凝土系杆拱桥因其良好的结构性能和美观度在桥梁建设中广泛使用，但长期以来其结构安全问题一直备受关注。本文旨在讨论钢管混凝土系杆拱桥的动力分析和损伤识别问题，探究其安全性能，为其设计和维护提供理论依据。首先，本文将对钢管混凝土系杆拱桥的结构特点进行介绍，分析其力学性质和动力特性。其次，采纳传统的动力分析方法进行模拟计算，并运用模态分析和频响分析对其动态响应进行分析。然后，针对钢管混凝土系杆拱桥在使用过程中可能出现的损伤问题，本文提出了损伤指标识别方法。最后，通过实例验证，证明了本文提出的损伤识别方法的可行性和有效性，同时也为钢管混凝土系杆拱桥提供了保障。关键词：钢管混凝土系杆拱桥；动力分析；损伤识别；安全性能AbstractSteel pipe concrete tie-rod arch bridge is widely used in bridge construction due to its good structural performance and aesthetics, but its structural safety has always been a concern. This paper aims to research on the dynamic analysis and damage identification of steel pipe concrete tie-rod arch bridge, to explore its safety performance and provide theoretical basis for its design and maintenance.Firstly, the structural characteristics of steel pipe concrete tie-rod arch bridge will be introduced and its mechanical properties and dynamic characteristics will be analyzed. Secondly, the traditional dynamic analysis method will be used for simulation calculation, and modal analysis and frequency response analysis will be used to analyze its dynamic response. Then, for the possible damage problems that may occur in the use of steel pipe concrete tie-rod arch bridge, this paper proposes a damage index identification method. Finally, through examples verification, the feasibility and effectiveness of the proposed damage identification method are proved, and also provides a guarantee for steel pipe concrete tie-rod arch bridge.Keywords: Steel pipe concrete tie-rod arch bridge; Dynamic analysis; Damage identification; Safety performance
