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在假设位移延性系数的基础上,从约束混凝土本构关系出发,采用基于Park-Ang模型的改进损伤评估模型,得出不同预期性能下的结构等效变形延性系数,进而推导出工程中常用轴压比下的矩形及圆形截面配箍率计算公式,即变形能力公式。通过范立础所做的试验验证实际工程中常用位移延性系数(4～6.5)时变形能力公司的正确性和有效性。并在此基础上总结了钢筋混凝土桥墩的抗震性能化设计的一般步骤,并给出了设计实例。
Based on the assumption of the displacement ductility coefficient, based on the constitutive relation of the confined concrete, an improved damage assessment model based on Park-Ang model was used to obtain the equivalent deformation ductility coefficient under different expected performances. Then the common shaft Compression ratio of rectangular and circular section stirrup rate formula, that is, deformation capacity formula. Through the tests made by Fan Li-chun, the correctness and validity of the deformation ability companies commonly used in practical engineering are verified. On this basis, the general procedure of seismic performance design of reinforced concrete piers is summarized, and the design examples are given.