Towards a performance based fire design framework for resilient composite steel deck construction in Canada

加拿大传统的组合钢桥面结构防火设计是规范的。此设计过程依赖于基于隐式火灾关系设计隔离建筑构件的简化。鉴于全球的进步，这种设计程序可以被认为是限制性的，对结构材料的利用不足，对消防材料的浪费，甚至有时不安全。基于性能的火灾设计(PBFD)方法依赖于对火灾和结构界面的合理理解。加拿大目前的组合钢桥面建筑规范是为了允许在基于目标的规范下对结构中的消防安全进行替代解决方案设计。然而，对于实践者如何解释和制定组合钢甲板结构的替代火灾设计解决方案的指导很少，没有可靠的实验来辅助数值验证，也很少有信息可以用来证明钢结构在火灾中的弹性。这项研究的目的是为加拿大咨询从业者制定新的结构防火设计指南，以供安全、弹性和经济的组合钢甲板结构设计遵循。这将是与加拿大钢铁行业的主要利益相关者的合作：卡尔顿大学、加拿大钢铁建筑学会(CISC)和Entuitive。CISC是一家声誉良好的组织，为加拿大的结构钢组织提供支持；而Entuitive是一家专注于钢结构建筑的设计咨询公司。这项研究的总体目标是：(1)探索加拿大目前使用的火灾设计方法中的分项问题；(2)通过试验，评估和研究钢结构建筑的结构耐火性能；(3)开发并发布加拿大使用的钢框架和组合甲板系统的替代结构设计解决方案，以促进最佳实践和能力，并利用卡尔顿大学和国外的新型实验支持的经过验证的数值模拟；以及(4)帮助为PBFD的适当框架提供意见，供加拿大未来的规范和标准考虑。

Traditional structural design for fire safety of composite steel deck construction in Canada is prescriptive. This design procedure relies on simplification with isolated building components being designed based on implicit fire relations. In light of advances globally, this design procedure can be viewed as restrictive, under-utilizing of structural materials, wasteful of fire protection material, and even at times unsafe. The Performance Based Fire Design (PBFD) methodology relies on the fire and structure interface being rationally understood. The current building codes for composite steel deck construction in Canada are written to allow alternative solution designs for fire safety in structures under the objective based code. However, there is little guidance for the practitioner on how to interpret and formulate an alternative fire design solution for composite steel deck construction, sound experimentation to assist numerical validation, and very little information which can be used to demonstrate the resiliency of steel construction in fire. The goal of this research is to develop novel structural fire design guidance for the Canadian consultancy practitioner to follow for the safe, resilient, and economical design of composite steel deck construction. This will be a collaboration with the key stakeholders in the Canadian steel industry: Carleton University; Canadian Institute of Steel Construction (CISC), and Entuitive. CISC is a reputable organization which supports structural steel organisations in Canada; while Entuitive is a design consultancy firm with focus on steel construction. The overarching objectives of the research are to: (1) explore sub-issues with current fire design methodologies in use in Canada; (2) with experimentation, assess and study the structural fire resiliency behavior of steel construction; (3) develop, and publish alternative structural design solutions for steel frame and composite deck systems for use in Canada to advance best practice and competency with validated numerical modelling supported by novel experimentation at Carleton University and abroad; and (4) help establish input for an appropriate framework for PBFD for consideration into future Canadian codes and standards.