本文件提供了一种评估建筑环境中暴露于真实火灾时结构性能的方法。 本文件遵循ISO 23932-1中概述的原则，为工程师评估新结构或现有结构的消防安全水平提供了基于性能的方法。 注:为了满足消防安全目标，通过基于结构行为量化的工程方法对结构的消防安全进行评估，可以涵盖真实火灾的整个时间历程（包括冷却阶段）及其与消防安全目标（如生命安全）相关的后果，财产保护和/或环境保护。

This document provides a methodology for assessing the performance of structures in the built environment when exposed to a real fire. This document, which follows the principles outlined in ISO 23932-1, provides a performance-based methodology for engineers to assess the level of fire safety of new or existing structures. NOTE The fire safety of structures is evaluated through an engineering approach based on the quantification of the behaviour of a structure for the purpose of meeting fire safety objectives and can cover the entire time history of a real fire (including the cooling phase), and its consequences related to fire safety objectives such as life safety, property protection and/or environmental protection.