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钢管混凝土是指在钢管中填充混凝土而形成、且钢管及其核心混凝土能共同承受外荷载作用的结构构件。目前钢管混凝土拱桥已建成100多座,而关于钢管混凝土拱桥在结构设计、分析方面则仍存在许多不足,如钢管与混凝土的传力机制、钢管与混凝土的有效共同工作等问题。该文主要对钢管混凝土拱桥的空间受力特点进行研究,建立了相应的有限元分析模型,并进行了钢管混凝土拱桥的结构静力、动力特性及稳定性的分析,并针对主要细部构造进行了对比。
Concrete refers to the steel pipe filled with concrete to form, and the steel pipe and its core concrete can withstand the role of external load components. At present, there are more than 100 concrete-filled steel tube arch bridges. However, there are still some shortcomings in the structural design and analysis of CFST arch bridges, such as the transmission mechanism between steel tubes and concrete and the effective joint operation of steel tubes and concrete. This paper mainly studies the characteristics of space force of CFST arch bridge, establishes the corresponding finite element analysis model, analyzes the static and dynamic characteristics and stability of the CFST arch bridge, and analyzes the main details Compared.