Performance of Cementitious Fire Protection Coatings Against Post-earthquake Fire

IF 2.4 3区工程技术 Q2 ENGINEERING, MULTIDISCIPLINARY

Fire Technology Pub Date : 2025-05-29 DOI:10.1007/s10694-025-01757-3

Arsalan Kalali, Saeed Bakhtiyari

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Abstract

Steel structures are vulnerable to fire and need protection. On the other hand, in earthquake-prone areas, seismically resistant steel structures are generally designed with high ductility, which causes them to undergo significant deformations during earthquakes and, subsequently, damage to the applied fire protection coating. Considering the possibility of a fire incident after an earthquake event, understanding the fire resistance performance of seismically damaged fire protection coatings requires conducting research that is considered in this paper. In this research, a series of seismic tests (a total of seven quasi-static cyclic lateral loading tests) and a series of fire resistance tests (a total of 11 tests) have been performed on protected steel elements. The fire protection coatings considered in this research are cementitious spray-applied fire resistive materials that are widely used in the world. The parameters studied here include the type and thickness of the fire protection coating, the type of fire protection coating reinforcement system, and the intensity of the earthquake. According to the results of these tests, complete and accurate information on the fire resistance performance of spray-applied fire resistive materials against post-earthquake fire has been obtained and the effect of various parameters has been determined. In this regard, it has been found that the mechanical properties of the fire protection coating, the reinforcing system of the fire protection coating and the characteristics of the steel section are important parameters and factors.

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水泥防火涂料抗震后火灾性能研究

钢结构易受火灾影响，需要保护。另一方面，在地震易发地区，抗震钢结构通常被设计成具有高延性，这使得它们在地震期间发生明显的变形，并随后损坏所应用的防火涂层。考虑到地震发生后发生火灾的可能性，了解地震破坏防火涂料的防火性能需要进行本文所考虑的研究。本研究对受保护钢构件进行了一系列抗震试验（共7次准静力循环横向加载试验）和一系列耐火试验（共11次试验）。本研究考虑的防火涂料是目前国际上广泛使用的胶凝喷涂耐火材料。本文研究的参数包括防火涂层的类型和厚度、防火涂层加固体系的类型、地震烈度等。根据试验结果，获得了喷涂耐火材料抗震后火灾性能的完整、准确的信息，并确定了各参数对防火性能的影响。对此，人们发现防火涂料的力学性能、防火涂料的加固体系和钢截面的特性是重要的参数和因素。

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来源期刊

Fire Technology 工程技术-材料科学：综合

CiteScore

6.60

自引率

14.70%

发文量

137

审稿时长

7.5 months

期刊介绍： Fire Technology publishes original contributions, both theoretical and empirical, that contribute to the solution of problems in fire safety science and engineering. It is the leading journal in the field, publishing applied research dealing with the full range of actual and potential fire hazards facing humans and the environment. It covers the entire domain of fire safety science and engineering problems relevant in industrial, operational, cultural, and environmental applications, including modeling, testing, detection, suppression, human behavior, wildfires, structures, and risk analysis. The aim of Fire Technology is to push forward the frontiers of knowledge and technology by encouraging interdisciplinary communication of significant technical developments in fire protection and subjects of scientific interest to the fire protection community at large. It is published in conjunction with the National Fire Protection Association (NFPA) and the Society of Fire Protection Engineers (SFPE). The mission of NFPA is to help save lives and reduce loss with information, knowledge, and passion. The mission of SFPE is advancing the science and practice of fire protection engineering internationally.