钢管再生混凝土混合结构体系的抗震性能及灾变控制研究

项目名称： 钢管再生混凝土混合结构体系的抗震性能及灾变控制研究

项目编号： No.51468003

项目类型： 地区科学基金项目

立项/批准年度： 2015

项目学科： 建筑科学

项目作者： 苏益声

作者单位： 广西大学

项目金额： 48万元

中文摘要： 钢管再生混凝土混合结构体系具有承载能力高、抗震性能好等优点，又能利用废旧混凝土，实现资源的再生利用，绿色环保，综合效益十分显著，具有很大的推广潜力和应用发展背景。项目综合运用试验研究、数值模拟和理论分析等手段对钢管再生混凝土混合结构体系的关键问题进行深入研究。进行钢管再生混凝土框架的抗震性能、再生混凝土填充墙体的力学行为与损伤演变规律、钢管再生混凝土混合结构体系的精细化模型与灾变控制方法等研究。通过对结构体系的动力特征及非线性地震响应全过程分析，研究钢管再生混凝土混合结构体系在地震作用下的破坏模式。综合试验研究、数值模拟和理论分析结果，并结合我国现行可靠度设计规范规定的可靠度水准，提出钢管再生混凝土混合结构体系的抗震设计方法和合理构造措施，用于指导工程设计。

中文关键词： 钢管再生混凝土；混合结构；抗震性能；灾变控制；强度计算

英文摘要： Hybrid structural system of recycled aggregate concrete filled steel tube(RACFST) not only keeps the advantages of the high bearing capacity and good seismic performance, but also can utilize waste conceret to renew resources and protect green environment. So its comprehensive benefit is very significant, and it has a great application prospect. The project has a systematic research on the key problems of hybrid structural system of RACFST by the ways of experimental study, numerical simulation and theory analysis. Such as the seismic performance of RACFST frame， the mechanical performance and damage evolution law of recycled concrete filled wall, the working mechanism and seismic performance of RACFST members, the catastrophe control method and fine dissection model of hybrid structural system of RACFST. The failure mode of hybrid structural system of RACFST under the strong earthquake are researched by the analysis of the dynamic characteristics and nonlinear seismic response. Synthesizing the results of experimental study, numerical simulation and theory analysis, and combined with the reliability level regulated by the current reliability design code in China, the seismic design method and reasonable structure measures of hybrid structural system of RACFST are proposed. Research results can be used to guide the engineering design.

英文关键词： recycled aggregate concrete filled steel tube;hybrid structure;seismic behavior;catastrophe control;strength calculation