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为了对钢筋混凝土(RC)框架结构的地震破坏机制和抗震性能进行控制,将纤维增强混凝土(FRC)用于框架结构的预期损伤部位.采用有限元软件ABAQUS对RC框架结构和预期损伤部位采用FRC的框架结构进行弹塑性时程分析,研究预期损伤部位采用FRC框架结构的地震破坏机制和抗震性能.结果表明,FRC框架结构能够推迟结构柱铰的出现,有助于框架结构形成整体破坏机制;FRC框架有良好的变形能力,对变形控制能力优于RC框架;其塑性耗能能力大于RC框架结构.
In order to control the earthquake damage mechanism and seismic performance of reinforced concrete (RC) frame structure, the fiber reinforced concrete (FRC) is applied to the expected damage site of the frame structure.The finite element software ABAQUS is used to analyze the RC frame structure and the expected damage site using FRC Elastoplastic time-history analysis is carried out to study the earthquake damage mechanism and seismic performance of the FRC frame structure at the expected damage location.The results show that the FRC frame structure can delay the appearance of the structural column hinge and contribute to the overall failure mechanism of the frame structure. FRC frame has a good deformation capacity, the deformation control ability is superior to the RC frame; its plastic energy dissipation capacity is greater than the RC frame structure.