CAREER: Modular Nodes for Joints in Steel Special Moment- Resisting Frames

PI建议创建结构配置，消除关键截面的现场焊接，从而允许其他更具延展性的区域作为结构的容量限制。这种设计方法很难使用当今典型的轧制配置和连接程序来实现。因此，研究的关键在于开发和实现一个专门配置的模块化节点。设想了一种专门为减轻焊接应力而设计的铸钢结构。模块化节点实施的一个副产品是易于安装，面板区域的微调能力，以及被动结构控制的便利。建议研究的目的是在抗弯框架的节点内提供改进的板区反应和更可靠的延性。

PI proposes creating structural configurations that eliminate the field weld from the critical sections, thus allowing other more ductile areas to serve as capacity limits for the structure. This design approach is difficult to accomplish using the typical rolled configurations and connecting procedures of today. Therefore, the research hinges on the development and implementation of a specially configured modular node. A cast steel configuration specifically designed to mitigate the weld stresses is envisioned. A by-product of the modular node implementation is ease of erection, fine tuning capabilities at the panel zone, and the facilitation of passive structural control. The objective of the proposed research is to provide improved panel zone response and more reliable ductility within joints of moment resistant frames.