The rational and performance-based fire safety design approach for concrete structures

基于性能的混凝土结构消防安全设计方法

• 批准号: 560995-2020
• 负责人: Hajiloo, HamzehH
• 金额: $ 1.46万
• 依托单位: Carleton University
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=748945
• 关键词: rational; performance; based; fire; safety

To design structures that withstand extraordinary events (e.g., fire), engineering approaches are necessary to more accurately evaluate the effects of fires on structures. This project provides the partner organization with a pathway to steer away from prescriptive methods in fire safety design and adopt more rational and performance-based design approaches. The prescriptive fire safety design leaves little or no opportunity for designers to take a rational and innovative engineering approach. The adoption of rational and performance-based methods in structural fire safety offers benefits in terms of safety, resilience, and economy for structures. However, it suffers from the lack of systematic design guidelines for defining performance objectives, design fire scenarios, and methods of analysis. The outcome of this research will provide a set of novel and fundamental knowledge to further promote the adoption of the performance-based design method in Canadian design codes. In the context of fire safety engineering, a reliability-based methodology will be employed, and the interdependencies between multiple physical domains will be studied. This project will identify the factors which have the greatest impact on the response of structures. After that, probabilistic characteristics is defined for parameters whose uncertainty had a strong influence on the response.

为了设计承受非凡事件的结构（例如火灾），必须采用工程方法来更准确地评估火灾对结构的影响。该项目为合作伙伴组织提供了一种途径，可以探讨消防安全设计中的规定方法，并采用更多理性和基于性能的设计方法。规定的消防安全设计几乎没有或没有任何机会采用理性和创新的工程方法。在结构性消防安全中采用理性和基于绩效的方法在安全性，弹性和经济方面为结构提供了好处。但是，它遭受了缺乏定义性能目标，设计火灾场景和分析方法的系统设计指南的困扰。这项研究的结果将提供一系列新颖的基本知识，以进一步促进加拿大设计代码中基于绩效的设计方法的采用。在消防安全工程的背景下，将采用一种基于可靠性的方法，并将研究多个物理领域之间的相互依赖性。该项目将确定对结构响应产生最大影响的因素。之后，为不确定性对响应产生强大影响的参数定义了概率特征。