Collaborative Research: Guidelines for the Design of Steel Shear Angle Connections Under Fire Hazard

本研究项目将研究钢剪力角连接的结构特性对火灾的影响。钢剪力角连接常用于钢框架建筑，以支撑楼板梁并提供结构的整体稳定性。在内部火灾的情况下，这些连接的性能对整个结构的响应起着至关重要的作用。因此，了解这些连接暴露在火中的行为是很重要的。密歇根州立大学和普林斯顿大学将进行全面的火灾实验和数值研究，以提高对这种连接在从火灾前阶段到倒塌阶段整个加载范围内的行为的基本理解。该研究将评估改进的连接细节的防火性能。该项目将为改进这些连接的设计提供基础数据，以适应实际的火灾和外部负载。这些数据将用于制定抗剪角连接的设计和耐火评估指南。拟议的设计指南将促进美国火灾危险结构设计规范和标准的发展，并将火灾设计纳入整体结构设计方法。该指导方针预计将产生具有成本效益和增强防火安全的钢结构设计。计划将研究结果和数据广泛传播给研究人员和实践者，以便在实践中快速实施设计指南。该项目还将通过研究生和本科生直接参与项目工作，培养下一代熟练的钢结构防火设计劳动力。

This research project will study the structural behavior of steel shear angle connections to fire hazard. Steel shear angle connections are often used in steel framed buildings to support the floor beams and provide overall stability to the structure. In case of an internal fire, the performance of these connections plays a crucial role on the response of the structure as a whole. It is thus important to understand the behavior of these connections exposed to fire. Full-scale fire experiments and numerical studies will be conducted at Michigan State University and Princeton University to improve the basic understanding of the behavior of such connections for the entire range of loading from pre-fire stage to collapse stages. The study will evaluate the fire performance of the improved connection details. The project will generate basic data for improved design of these connections for realistic fire and external loading. This data will be used to formulate the guidelines for the design and fire resistance evaluation of shear angle connections. The proposed design guidelines will facilitate the development of US codes and Standards for the design of structures for fire hazards, and integration of fire design into overall structural design methodology. The guidelines are expected to produce cost-effective and enhanced fire-safe designs of steel structures. The wide dissemination of the research results and data to researchers and practitioners is planned for quick implementation of the design guidelines in practice. The project will also train the next generation of skilled workforce for fire resistant design of steel structures through the direct involvement of graduate and undergraduate students in the project work.