地震损伤评价的累积滞回耗能计算

Calculation of the Cumulative Dissipative Hysteretic Energy in Evaluation of the Seismic Damage

从地震损伤评价的角度出发,概括常见的两种经典模型的参数计算方法及存在的缺陷,并建议研究累积滞回耗能的必要性.基于4个HRB 400级钢筋混凝土柱的低周加载试验,研究累积滞回耗能的计算方法.此外,为了进行地震损伤指数的计算,根据试验结果,建立累积滞回耗能与极限位移的关系.

In view of the seismic damage evaluation, the calculation methods of two classic models were discussed, their defects were also pointed out, and the necessity of calculation of cumulative dissipative hysteretic energy was suggested. Based on the low cyclic loading test of four HRB 400 grade reinforced concrete columns, the calculation method of the cu mulative dissipative hysteretic energy was presented. According to the test, the relationship between the cumulative dissipative hysteretic energy and the ultimate displacement was established, which can evaluate the index of seismic damage.