高层建筑结构地震灾变行为的多尺度损伤评价方法及分析平台构建

The nonlinear damage control of the high-rise structure under earthquake excitations is the key problem in structural seismic resistance design and structural control. In order to explore the development process of the structural seismic damage, the proposal is proposed to study the material scale, member scale and structure scale based on the micro scale of the structural material damage. With the fundamental studies on the Youth Fund Project, the proposal further research continuously on, firstly, based on the damage constitutive model constructed by the theory of continuum damage mechanics, to propose the damage constitutive model constructed by the multi-scale theory. Secondly, based on the damage description on damage of entire structure using weighted statistical method, the proposal further studies the evaluation method on damage of entire structure using multi-scale damage information. Thirdly, based on the precise analysis model of one dimension member (beam, column) using super convergence technology, the proposal further studies the precise analysis model of two dimension member (wall, plate). Fourthly, based on ABAQUS/Explicit and the developed analysis platform, the proposal further researches the simulation method on multi-dimension based on CPU-GPU calculation and analysis platforms. The proposal is aimed to explore the nonlinear dynamic damage and dynamic catastrophe laws of the complicated high-rise structure, and to achieve the precise simulation and scientific reflection of the structural nonlinear performances.

高层结构地震作用下的非线性损伤控制，是结构抗震性能设计与工程控制的关键与核心。为科学、合理地揭示结构地震损伤的发展过程，本项目从结构材料损伤的细观尺度出发，分别对材料尺度、构件尺度及结构尺度损伤模型展开研究。在青年基金项目研究基础上，拟进行如下连续性研究：以基于连续介质损伤力学理论构建的损伤本构模型为基础，进一步研究基于多尺度理论的损伤本构模型建模方法；以基于加权统计法的结构整体损伤描述为基础，进一步研究考虑基于多尺度损伤信息的结构整体损伤评价方法；以基于超收敛技术的一维(梁、柱)构件精确分析模型为基础，进一步研究二维(墙、板)构件的精确建模方法；以基于ABAQUS/Explicit，开发的分析平台为基础，进一步研究基于CPU-GPU异构计算分析平台的多尺度模拟方法。致力于揭示复杂高层建筑结构在灾害性地震作用下的非线性动力损伤与动力灾变规律，实现对结构非线性性能的精确模拟与科学反映。

高层结构地震作用下的非线性损伤控制，是结构抗震性能设计与工程控制的关键与核心。为科学、合理地揭示结构地震损伤的发展过程，本项目从结构材料损伤的细观尺度出发，分别对材料尺度、构件尺度及结构尺度损伤模型展开研究。在青年基金项目研究基础上，拟进行如下连续性研究：以基于连续介质损伤力学理论构建的损伤本构模型为基础，进一步研究基于多尺度理论的损伤本构模型建模方法；以基于加权统计法的结构整体损伤描述为基础，进一步研究考虑基于多尺度损伤信息的结构整体损伤评价方法；以基于超收敛技术的一维(梁、柱)构件精确分析模型为基础，进一步研究二维(墙、板)构件的精确建模方法；以基于ABAQUS/Explicit，开发的分析平台为基础，进一步研究基于CPU-GPU异构计算分析平台的多尺度模拟方法。致力于揭示复杂高层建筑结构在灾害性地震作用下的非线性动力损伤与动力灾变规律，实现对结构非线性性能的精确模拟与科学反映。