基于响应面法的巨-子结构控制体系地震易损性分析

发布时间：2018-07-22 14:52

【摘要】：提出一种基于响应面法的巨-子结构控制体系的地震易损性分析方法。定义巨-子结构控制体系的4个极限状态,提出基于巨-子结构控制体系极限破坏状态确定结构抗震性能水平限值的方法。通过考虑地震动和结构物理参数不确定性,以中心复合设计方法建立地震动-巨-子结构控制体系的样本模型。采用SAP2000对系统的样本模型进行非线性动力时程分析,并分别建立巨-子结构控制体系中主结构、子结构以及隔震层的响应面模型,在此基础上采用蒙特卡洛模拟获得巨-子结构控制体系的易损性曲线,给出巨-子结构控制体系的破坏概率,从而为地震灾害的巨-子结构控制体系损伤评估提供依据,具有较大的工程应用前景。
[Abstract]:A method for seismic vulnerability analysis of mega-substructure control system based on response surface method is proposed. Four limit states of giant substructure control system are defined and a method to determine the horizontal limit value of seismic performance of structure based on the limit failure state of giant substructure control system is presented. By taking into account the ground motion and the uncertainty of structural physical parameters, the sample model of the control system of ground motion and giant substructure is established by using the central composite design method. The nonlinear dynamic time history analysis of the sample model of the system is carried out by SAP2000, and the response surface models of the main structure, the substructure and the isolation layer in the giant substructure control system are established, respectively. On this basis, Monte Carlo simulation is used to obtain the vulnerability curve of the giant substructure control system, and the failure probability of the giant substructure control system is given, which provides the basis for the damage assessment of the giant substructure control system of the earthquake disaster. It has great prospect of engineering application.
【作者单位】：北京工业大学;广州大学工程抗震研究中心;
【基金】：973项目(2012CB723304) 国家重大研究计划(97315301-07) 国家教育部新世纪人才项目(NCET-11-0914) 教育部长江学者和创新团队发展计划项目(IRT13057)
【分类号】：TU352.1

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