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提出了钢筋混凝土框架结构直接基于地震损伤性能的抗震设计方法,改变已有研究采用的损伤验算思路。根据提出的地震损伤性能目标,将薄弱层的损伤指标作为结构整体损伤的控制指标,并结合Pushover分析方法从而进行结构直接基于损伤性能的抗震设计。给出的算例演示了钢筋混凝土框架结构直接基于损伤性能设计的全过程,研究表明直接基于损伤性能的抗震设计结果能够满足建筑抗震设计规范的基本要求。因此,本文提出的直接基于损伤性能设计方法是方便可行的,并使损伤指标在设计过程中真正起到控制作用。
The seismic design method of reinforced concrete frame structure based on earthquake damage performance is proposed directly, and the idea of damage checking adopted in the existing research is changed. According to the proposed earthquake damage performance target, the damage index of the weak layer is taken as the control index of the overall structural damage, and the Pushover analysis method is adopted to perform the earthquake-resistant design of the structure based on the damage performance directly. The given example demonstrates the whole process of the reinforced concrete frame structure based on the damage performance design directly. The results show that the seismic design results based on the damage performance can meet the basic requirements of the seismic design code. Therefore, the design method based on damage performance proposed in this paper is convenient and feasible, and the damage indicator can really play a controlling role in the design process.