利用基于性能的火灾评估调查自动驾驶汽车停车场自动喷水灭火系统的效果

IF 2.3 3区 工程技术 Q2 ENGINEERING, MULTIDISCIPLINARY
Ahmet Can Altunişik, Sara Mostofi, Alihan Baltaci, Yunus Emrahan Akbulut, Fatih Yesevi Okur
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引用次数: 0

摘要

自动泊车(AVP)结构中的火灾事故很少发生,但此类事故对这些系统结构完整性的影响对设计考虑至关重要。尽管自动喷水灭火系统在各种环境下都能有效灭火,但自动泊车结构火灾事故中自动喷水灭火系统的有效性及其对这些结构火灾后状况的影响却很少受到关注。因此,本研究对这些结构内的火灾性能进行了全面的数值评估,主要侧重于对自动喷水灭火系统的评估。研究采用了三种不同的起火地点场景来评估自动喷水灭火系统的性能和结构的火灾后状况。评估过程首先使用火灾动态模拟器(FDS)对每种场景进行模拟。随后,将 FDS 的结果传输到 OpenSees,以执行热机械分析。然后,根据从 OpenSees 中获得的结构响应以及基于性能的评估(PBA)标准,对结构的火灾后状况进行评估。结果表明,所采用的喷水灭火器配置有效地减少了火势的垂直蔓延。值得注意的是,当大火在靠近外墙的位置点燃时,自动喷水灭火系统的性能要低于其他情况。这一发现表明,有必要采用先进的灭火系统配置,专门用于降低这些临近外墙区域的火灾风险。此外,这些观察结果还凸显了在外墙设计中考虑使用不燃材料以提高消防安全的潜在价值。这项研究成果为加强钢结构停车场的消防安全措施提供了启示。这些改进措施对于在这些环境中建立健全的消防安全框架至关重要。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Investigation of the Effects of Sprinkler System in Automated Vehicle Parking Structures Using Performance-Based Fire Assessment

Investigation of the Effects of Sprinkler System in Automated Vehicle Parking Structures Using Performance-Based Fire Assessment

Fire incidents in automated vehicle parking (AVP) structures are rare, yet the impact of such incidents on the structural integrity of these systems is crucial for design considerations. Although sprinklers are recognized for their effective fire suppression in various settings, the effectiveness of sprinkler systems in AVP structures fire incidents and their contribution to the post fire conditions of these structures has received scant attention. Consequently, this study performed a comprehensive numerical evaluation of fire performance within these structures, with a primary focus on the evaluation of sprinkler systems. Three distinct fire location scenarios were employed to assess the performance of the sprinkler systems and post fire conditions of the structure. The evaluation process starts with simulation of each scenario using the Fire Dynamics Simulator (FDS). Subsequently, the FDS results were transferred to OpenSees to perform thermo-mechanical analyses. The post-fire conditions of the structure were then evaluated based on structural responses obtained from OpenSees and based on performance-based assessment (PBA) criteria. The findings indicated that the employed sprinkler configuration effectively reduced the vertical progression of fire. Notably, when the fire ignited in proximity to the facade, the sprinkler system had a lower performance compared to the other scenarios. This finding suggests the need for adopting advanced suppression system configurations that are specifically designed to reduce fire risks in these facade-proximate areas. Furthermore, these observations highlight the potential value of considering the use of non-combustible materials in facade design to improve fire safety. The outcome of this study provides insights for enhancing the fire safety measures in car parks with steel structures. Such enhancements are crucial for establishing a robust fire safety framework in these environments.

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来源期刊
Fire Technology
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.
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