Fire Technology最新文献_第9页

Experimental Analysis of the Post-Fire Structural Performance of Corroded Geopolymer Concrete Columns 腐蚀地聚合物混凝土柱火灾后结构性能试验分析

IF 2.4 3区工程技术

Fire Technology Pub Date : 2026-01-06 DOI: 10.1007/s10694-025-01844-5

Balamurali Kanagaraj, Kusum Lugun, Alin Joe, N. Anand, Katherine A. Cashell

{"title":"Experimental Analysis of the Post-Fire Structural Performance of Corroded Geopolymer Concrete Columns","authors":"Balamurali Kanagaraj, Kusum Lugun, Alin Joe, N. Anand, Katherine A. Cashell","doi":"10.1007/s10694-025-01844-5","DOIUrl":"10.1007/s10694-025-01844-5","url":null,"abstract":"<div>\u0000 \u0000 <p>This study investigates the combined effects of corrosion and fire on the structural performance of reinforced geopolymer concrete (GPC) columns. Four full-scale specimens were exposed to accelerated corrosion and ISO 834-standard fire conditions for 60–90 min. Key structural parameters—including axial load capacity, stiffness, ductility, toughness, and energy absorption—were evaluated to assess post-fire performance. Results show that both corrosion and fire independently reduce strength and stiffness, but their combined impact leads to severe degradation. The most heavily damaged specimens exhibited up to 79% loss in ultimate load, 64% loss in stiffness and over 90% reduction in energy absorption capacity. While some increases in ductility were observed under combined exposure, they were accompanied by substantial losses in load-bearing capacity. These severe reductions suggest that standard fire resistance assessments, when applied without considering prior corrosion, may significantly overestimate post-fire capacity, underscoring the need for corrosion deterioration models in structural fire design.</p>\u0000 </div>","PeriodicalId":558,"journal":{"name":"Fire Technology","volume":"62 1","pages":""},"PeriodicalIF":2.4,"publicationDate":"2026-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10694-025-01844-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145930031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modelling Heat Transfer of Timber Sections Subjected to Non-standard Fire Action 非标准火灾作用下木材截面的传热模拟

IF 2.4 3区工程技术

Fire Technology Pub Date : 2026-01-06 DOI: 10.1007/s10694-025-01833-8

Cheng Chen, Liming Jiang, Martyn S. McLaggan, Supan Wang, Asif Usmani

{"title":"Modelling Heat Transfer of Timber Sections Subjected to Non-standard Fire Action","authors":"Cheng Chen, Liming Jiang, Martyn S. McLaggan, Supan Wang, Asif Usmani","doi":"10.1007/s10694-025-01833-8","DOIUrl":"10.1007/s10694-025-01833-8","url":null,"abstract":"<div><p>Using timber as a structural material in buildings is promising in reducing the carbon footprint of construction, although fire safety has been a long-standing challenge prohibiting its wider use. The current design practice usually complies with Eurocode 5, but it is largely prescribed only for standard fire scenario. While investigating the fire behavior in real compartments containing timber members, the fire action imposed on the surface of timber members can be hardly represented by the standard fire curve. Therefore, modelling the heat transfer of timber sections in these real fire scenarios requires adequate numerical models. In this paper, the heat transfer model equipped with temperature-variant thermal properties of timber as well as a heat generation model addressing timber combustion effect, has been developed and implemented in the open-source simulation platform OpenSees for fire. Advancing from the existing heat transfer models, the present model has been validated against test results of timber sections subjected to the prescribed non-standard fire actions supported by the e-controlled radiant panel system. The modelling results have shown good performance in predicting the temperature evolution at various depths of the timber sections subjected to non-standard heating conditions.</p></div>","PeriodicalId":558,"journal":{"name":"Fire Technology","volume":"62 1","pages":""},"PeriodicalIF":2.4,"publicationDate":"2026-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145930161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Performance of Extinguishing Agents against Lithium-Ion Battery Fires 灭火剂对锂离子电池火灾的性能研究

IF 2.4 3区工程技术

Fire Technology Pub Date : 2026-01-06 DOI: 10.1007/s10694-025-01831-w

Wojciech Mrozik, Joseph McDonald, Emma Shuttleworth, Neville Dickman, Paul Christensen, Caroline Gaya, Guy Marlair

{"title":"Performance of Extinguishing Agents against Lithium-Ion Battery Fires","authors":"Wojciech Mrozik, Joseph McDonald, Emma Shuttleworth, Neville Dickman, Paul Christensen, Caroline Gaya, Guy Marlair","doi":"10.1007/s10694-025-01831-w","DOIUrl":"10.1007/s10694-025-01831-w","url":null,"abstract":"<div><p>This study presents a systematic evaluation of fire suppression strategies for lithium-ion Battery Energy Storage Systems (BESS), specifically examining thermal runaway propagation in small domestic system (8 kWh). Five distinct suppression methods were evaluated: water mist, encapsulator agent (water mist with proprietary encapsulator), carbonate agent (water mist with ammonium bicarbonate), mixed agent (containing boron compounds and surfactants), and liquid nitrogen. Performed experiments revealed significant differences between suppression methods. Water mist and encapsulator agents demonstrated better performance, extending propagation delay times by 179% and 167%, respectively, compared to control tests without a suppression method. Registered maximum temperatures varied across methods from 780° to 890 °C. However, none of the tested methods prevented thermal runaway propagation entirely and were able to save the system from being destroyed. Critical safety concerns emerged regarding vapour cloud production, which correlated strongly with cooling effectiveness (<i>r</i> = 0.87) but increased explosion risks. Statistical analysis confirmed significant method-dependent differences (<i>p</i> < 0.001), with water mist and encapsulator agents reducing thermal runaway hazard ratios by over 70%. These results indicate that current suppression technologies can delay but not prevent thermal runaway propagation. Findings emphasize the need for integrated approaches combining efficient cooling with vapour management strategies, particularly for residential BESS installations.</p></div>","PeriodicalId":558,"journal":{"name":"Fire Technology","volume":"62 1","pages":""},"PeriodicalIF":2.4,"publicationDate":"2026-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10694-025-01831-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145930162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Efficiency Assessment of Converting Single-Tube to Double-Tube CFST Columns in Fire Resistance Based on Functionally Graded Concrete 基于功能级配混凝土的单管转双管CFST柱耐火效能评价

IF 2.4 3区工程技术

Fire Technology Pub Date : 2025-12-30 DOI: 10.1007/s10694-025-01835-6

Ming-Xiang Xiong, Zihan Deng, Shenchun Xu

{"title":"Efficiency Assessment of Converting Single-Tube to Double-Tube CFST Columns in Fire Resistance Based on Functionally Graded Concrete","authors":"Ming-Xiang Xiong, Zihan Deng, Shenchun Xu","doi":"10.1007/s10694-025-01835-6","DOIUrl":"10.1007/s10694-025-01835-6","url":null,"abstract":"<div><p>Conventional single-tube concrete-filled steel tubular (CFST) columns are susceptible to fire-induced failure due to rapid steel tube degradation at elevated temperatures. While external fireproofing measures are commonly used to improve fire resistance, they often increase construction costs and maintenance complexity. Addressing this issue, the present research introduces an innovative double-tube CFST column design incorporating functionally graded concrete between concentric steel tubes. This configuration maintains equivalent steel consumption and ambient-temperature structural capacity compared to traditional single-tube systems. Utilizing finite element modeling, the fire performance of axially loaded short and slender columns—both single-tube and double-tube variants—is systematically evaluated. Key parameters influencing fire resistance, including cross-sectional dimensions, outer/inner concrete compressive strengths, steel tube yield strength, applied load ratio, inter-tube gap distance, and column slenderness, are analyzed. Results indicate that the double-tube CFST columns exhibit substantially superior fire resilience compared to their single-tube counterparts, particularly in scenarios involving larger cross-sections and reduced load ratios, which collectively prolong structural integrity under fire exposure. The study concludes that optimized double-tube configurations incorporating functionally graded concrete can achieve fire resistance requirements without supplementary protective measures, offering a cost-effective and maintenance-efficient alternative for fire-prone environments.</p></div>","PeriodicalId":558,"journal":{"name":"Fire Technology","volume":"62 1","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145887109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reliability Assessment of Steel and Composite Beam in Localized Fire: Load and Resistance Factor Design Framework 局部火灾中钢和组合梁的可靠性评估：荷载和阻力系数设计框架

IF 2.4 3区工程技术

Fire Technology Pub Date : 2025-12-24 DOI: 10.1007/s10694-025-01830-x

Sabarna Palit, Sriman Kumar Bhattacharyya, Damodar Maity

引用次数: 0

Correction: Gaps in Human Behaviour in Fires Research: A Scoping Review 更正：火灾研究中人类行为的差距：范围审查

IF 2.4 3区工程技术

Fire Technology Pub Date : 2025-12-01 DOI: 10.1007/s10694-025-01820-z

Erica Kinkel, C. Natalie van der Wal, Enrico Ronchi, Erica D. Kuligowski

引用次数: 0

Correction: Understanding the Human Behavior in the Kiss Nightclub Fire: Analysis of a Survey with Survivors 更正：理解接吻夜总会火灾中的人类行为：对幸存者的调查分析

IF 2.4 3区工程技术

Fire Technology Pub Date : 2025-11-28 DOI: 10.1007/s10694-025-01825-8

Rosaria Ono, Fulvio Vittorino, Walter Negrisolo, Eveline Favero

引用次数: 0

Ensemble-Learning-Based Multi-sensor Fire Detection Technology with CO2 Background Noise Adaptation 基于集成学习的CO2背景噪声自适应多传感器火灾探测技术

IF 2.4 3区工程技术

Fire Technology Pub Date : 2025-11-04 DOI: 10.1007/s10694-025-01816-9

Miaomiao Yu, Hongyong Yuan, Tao Chen, Lida Huang, Jingwu Wang

{"title":"Ensemble-Learning-Based Multi-sensor Fire Detection Technology with CO2 Background Noise Adaptation","authors":"Miaomiao Yu, Hongyong Yuan, Tao Chen, Lida Huang, Jingwu Wang","doi":"10.1007/s10694-025-01816-9","DOIUrl":"10.1007/s10694-025-01816-9","url":null,"abstract":"<div><p>CO<sub>2</sub> is a significant fire detection parameter. However, its effectiveness can be compromised by high background concentrations, leading to false alarms or inaccurate detection. To mitigate the effects of uncertain ambient background concentrations on the performance of CO<sub>2</sub> fire detectors, this study developed an environmentally adaptive multi-sensor fire detection model based on an ensemble learning approach. First, an ensemble learning model consisting of base classifiers of gated recurrent unit (GRU) and convolutional neural network (CNN) was designed to learn and classify CO<sub>2</sub> and smoke concentrations under fire and non-fire conditions. Second, the fire detection performance of the multi-sensor ensemble learning model was validated using accuracy, precision, recall, and F1 score metrics. Finally, its performance was compared with those of multi-sensor fire detection models constructed with a CNN and GRU network. The results indicate that the multi-sensor fire detection model based on ensemble learning outperformed the fire detection models based on CNN and GRU. Moreover, the proposed model became more self-adaptive to the environment of the installation space as the number of CO<sub>2</sub> background concentration signals used for training increased. The fire recognition accuracy of the multi-sensor fire detection model exceeded 99% with 150 sets of CO<sub>2</sub> background concentration signals supplemented to the training dataset.</p></div>","PeriodicalId":558,"journal":{"name":"Fire Technology","volume":"61 7","pages":"5891 - 5909"},"PeriodicalIF":2.4,"publicationDate":"2025-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145698562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Correction: Effect of Thin Intumescent Coating Type and Thickness on the Charring of Mass Timber Under Varied Heat Flux Exposure 修正：薄膨胀涂层类型和厚度对不同热流暴露下大块木材炭化的影响

IF 2.4 3区工程技术

Fire Technology Pub Date : 2025-11-03 DOI: 10.1007/s10694-025-01822-x

Stavros Spyridakis, Cristian Maluk, Anwar Orabi, David Barber, Felix Wiesner

引用次数: 0

Special Issue on Battery Fires 电池火灾特刊

IF 2.4 3区工程技术

Fire Technology Pub Date : 2025-11-03 DOI: 10.1007/s10694-025-01823-w

Qingsong Wang, Ping Ping

引用次数: 0