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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

基本信息

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

项目摘要

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.

为了设计能够承受非常事件的结构（例如，火灾），工程方法是必要的，以更准确地评估火灾对结构的影响。该项目为伙伴组织提供了一条途径，使其能够摆脱消防安全设计中的规范方法，采用更合理和基于性能的设计方法。规范的消防安全设计很少或根本没有机会让设计师采取合理和创新的工程方法。采用合理的和基于性能的方法在结构防火安全提供了安全，弹性和经济的结构方面的好处。然而，它缺乏系统的设计准则来定义性能目标，设计火灾场景和分析方法。本研究的成果将提供一套新颖的基础知识，以进一步促进加拿大设计规范中采用基于性能的设计方法。在消防安全工程的背景下，将采用基于可靠性的方法，并将研究多个物理域之间的相互依赖关系。本项目将确定对结构响应影响最大的因素。在此之后，概率特性的参数的不确定性有很大的影响的响应定义。