三维地震累积损伤模型的参数研究

By collecting and analyzing 135 test results of rectangular piers failed to bending, this paper obtained the moment-rotation relationship from the original force-displacement test data of members. Furthermore, to discuss parameter values for the three-dimensional seismic damage model raised by Guo Jin, the paper determined the defining principle of yield and limit state points and assumed relationship of deformation under monotonic loading and deformation under cyclic loading. In this paper, the damage value deviation of all results was defined. The result indicated that the model parameter β could be taken as 0.12 and β1 as 1.6, when considering them as constant value, in the principle of Minimizing damage deviation and conforming the requirements of actual situation. However, if the value of β1 is fixed, it is recommend that the uncertainty of β should be considered, which is in accordance with Weibull distribution using the chi-square test.