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控制结构损伤过程和失效模式,避免结构发生整体倒塌,对提高结构的抗震安全性,降低地震时人员伤亡和财产损失,具有重要意义。全面综述了国内外有关材料、构件和结构三个层次的结构损伤准则,结构失效模式优化以及结构损伤控制的研究成果,分析了研究中存在的问题,并展望了未来的研究方向。认为采用材料损伤本构模型加权组合得到结构损伤准则的方法是可行的;而结构失效模式优化应在结构精细化数值模拟的基础上,重点研究目标函数与优化过程的相关性,以提高优化的收敛速度;关于结构损伤控制,应研究高效、稳定、能考虑结构强非线性的半主动控制算法,并对其有效性和可行性进行试验验证。
Control structural damage process and failure mode, to avoid the overall collapse of the structure, to improve the seismic safety of the structure, reducing earthquake casualties and property losses, is of great significance. A comprehensive review of the domestic and foreign materials, components and structure of the three levels of structural damage criteria, structural failure mode optimization and structural damage control research results, analysis of the problems in the study, and look forward to the future direction of the study. It is feasible to use the weighted combination of material damage constitutive model to obtain the structural damage criterion. However, based on the numerical simulation of structural refinement, the optimization of structural failure mode should focus on the correlation between the objective function and the optimization process to improve the optimization Convergence rate. For structural damage control, semi-active control algorithms with high efficiency, stability and robust nonlinear structure should be considered. The validity and feasibility of the proposed algorithm are validated.