柔性钢框架-再生混凝土墙板混合结构体系性能及设计理论研究

项目名称： 柔性钢框架-再生混凝土墙板混合结构体系性能及设计理论研究

项目编号： No.51308454

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 建筑科学

项目作者： 郭宏超

作者单位： 西安理工大学

项目金额： 25万元

中文摘要： 将再生混凝土墙板引入侧向刚度较差的柔性钢框架结构，墙板在起到维护功能的同时，做为结构的抗侧力构件参与抗风、抗震，形成绿色环保、低碳节能、优势互补的柔性钢框架-再生混凝土墙板混合结构体系。 以该混合结构的抗震机理和力学模型为研究目标，探索解决两个关键科学问题，即考虑节点连接柔性和墙体刚度影响的非线性分析方法，以及构建结构的等效分析模型。通过单跨双层平面结构的拟静力试验，揭示该混合结构体系的协同工作机理和破坏模式；深入分析配合比、再生骨料取代率、节点刚度等关键参数对结构承载力及刚度的影响；分析节点、框架和墙板的相互影响过程，以耗钢量和延性指标为基准，给出框架与墙体的刚度匹配关系；基于内嵌、外挂两种墙体连接方式，建立该新型结构体系的等效分析模型，给出抗震设计方法及构造建议。研究成果对推动再生混凝土在我国钢结构领域的应用和发展具有重要意义。

中文关键词： 柔性钢框架；再生混凝土；外挂墙板；等效分析模型；混合结构

英文摘要： On the flexible steel frame structure with less lateral stiffness introduced of recycled concrete wall panel which in the play of the maintenance functions, as the structure of lateral force members to resisted wind and earthquake, to formed of a green, low-carbon energy and complementary advantages of flexible steel frame with recycled concrete wall panel composite structure system. With the seismic mechanism and mechanical model of the composite structure as the research target, and explore solutions to two key scientific problems, namely considering of node connection flexible and wall stiffness affects of the nonlinear analysis method, as well as the equivalent analytical model of building structure. By single span double-layer planar structure of quasi-static test, reveal the collaborative work mechanism and failure mode of composite structural system; in-depth analysis of mixture ratio, the replace rate of recycled aggregates, joint stiffness and other key parameters on the structure bearing capacity and stiffness; analysis of node, frame and wall interaction process, on the basis of steel consumption and ductility index, given the frame and wall stiffness matching relations; in view of the embedded and plug-in two wall connection way to establish the equivalent analysis model, given the seismic design met

英文关键词： flexible steel frame；recycled concrete；external wall；equivalent analytical model；composite structure