复式钢管混凝土钢梁节点设计方法及节点性能控制研究

项目名称： 复式钢管混凝土钢梁节点设计方法及节点性能控制研究

项目编号： No.51478004

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 建筑科学

项目作者： 张玉芬

作者单位： 北方工业大学

项目金额： 90万元

中文摘要： 本项目拟系统研究复式钢管混凝土钢梁节点的受力性能，解决复式钢管混凝土柱与钢梁连接节点的基本理论问题，形成实用的复式钢管混凝土钢梁节点设计方法。设计新型的外隔板节点及改进的竖向肋板钢梁节点等适用于复式钢管混凝土结构的钢梁节点构造形式，进行节点力学性能静力和低周反复荷载试验，分析各节点的工作机理和受力性能，确定有足够的强度、良好的延性、满足抗震设计要求的节点构造，以满足工程应用需要；最后结合理论研究、大量的节点试验结果和准确的非线性有限元分析，对节点进行性能控制研究，包括节点性能指标的确定和计算、节点分类准则的建立和考虑结构整体与局部相关性的设计方法等内容，最终形成复式钢管混凝土钢梁节点性能化设计理论。

中文关键词： 复式钢管混凝土；钢梁节点；性能化指标；承载力；设计方法

英文摘要： This project intends to systematically study the connections between CFTST columns and steel beams and to form the joints design method of CFTST structures. Some new connections，such as external stiffening diaphragm joint and improved vertical stiffener joint, will be designed to fit for the engineering characteristic of CFTST structures. The mechanical behaviors including of bearing capacity and transferring mechanism will be researched by static and quasi-static tests. And connections with enough strength and good ductility should be designed into engineering applications to meet the seismic design requirements. Then，behavior control research of all connections will be conducted by the theory research，a large number of tests and accurate nonlinear finite element analysis. Further study should include the determination and computation of indexes representing the joint behavior，the establishment of classification criteria for all connections and the foundation of design method considering global and local structural interactions. Eventually performance-based design theory for CFTST structures should be presented.

英文关键词： CFTST;steel beam joint;behavior control;bearing capacity;design method