近日，课题组在国际著名结构工程类期刊《Engineering Structures》（中科院一区TOP期刊，IF: 6.4）发表的研究论文《Compression performance of ultra-high performance concrete filled steel tube (UHPCFST) columns exposed to elevated temperature during construction》荣获Editor’s Featured Paper Award殊荣。这一奖项专为在理论深度、工程应用价值和创新性方面具有突出表现的论文设立，全球每期仅遴选极少数文章授予此项荣誉。

该研究由课题组王叹博士后、余敏教授（通讯作者）、廖文澜硕士研究生、余春雷博士研究生和英国兰卡斯特大学叶建乔教授共同完成，体现了课题组在国际合作与多层次科研团队协作方面的良好基础与探索实践。

入选证书

研究背景：随着超高性能混凝土（UHPC）在高层与超高层建筑结构中的广泛应用，其防火安全性逐渐成为工程界关注的焦点。尤其在建筑施工阶段，结构常面临火源威胁，如电气火灾、焊接施工等，这对尚未充分养护的混凝土构件提出了更高的安全性挑战。该研究聚焦于施工阶段高温作用下UHPC钢管混凝土柱（UHPCFST）的残余承载力与结构性能评估，为施工期的结构抗火设计与后评估提供了关键数据支撑。

施工期火灾背景

研究内容：论文围绕施工期间可能遭遇火灾情景，系统开展了开展27根早龄期UHPCFST柱试件的高温暴露与轴压性能试验，全面分析了UHPC龄期、火源距离（300°C与700°C）以及粗骨料掺量对构件性能的影响，揭示了“远火源提升承载力、近火源削弱承载力”的规律性：当UHPC龄期较短且受热温度适中时（T1场景），水化反应被促进，残余强度提高；而近火源高温（T2场景）则导致材料组织破坏，结构性能退化。同时发现，钢管的约束效应显著抑制了UHPC高温下的爆裂剥落风险。同时，提出了一种基于平均历史最高温度（AHT）法的残余承载力预测模型，突破了传统经验拟合模型的适用局限性，并在验证试验中表现出优异的准确性。该研究为施工期UHPC结构的抗火优化设计提供了重要参考。

课题组相关成果一览（施工期火灾与平均温度方法方向）

[1] Wang Tan, Wang Zhonghui, Yu Min, Sun Zewen, Xu Lihua. Fire resistance of ultra-high performance concrete-filled steel tubes slender columns at different concrete ages: Experimental and theoretical investigation. Engineering Structures. 2025;342120973.

[2] Wang Tan, Yu Min, Liao Wenlan, Yu Chunlei, Ye Jianqiao. Compression performance of ultra-high performance concrete filled steel tube(UHPCFST) columns exposed to elevated temperature during construction. Engineering Structures. 2025;326119553.

[3] Wang Tan, Yu Min, Tian Jie, Sun Zewen, Yu Chunlei, Ye Jianqiao. Residual properties of ultra-high performance concrete containing steel-polypropylene hybrid fiber exposed to elevated temperature at early age. Journal of Building Engineering. 2025;99111507.

[4] Wang Zhonghui, M Yu , Wang Tan, Sun Zewen, Ye Jianqiao. Experimental study on the high temperature performance of UHPCFST stub columns at different concrete age. Construction And Building Materials . 2025,139232.

[5] Yu Min, Liao Wenlan, Liu Sumei*,Wang Tan,Yu Chunlei,Cheng Shanshan. Axial compressive performance of ultra-high performance concrete-filled steel tube stub columns at different concrete age. Structures, 2023, 55:664-676.

[6] Wang Tan, Yu Min*, Zhang Xu, Xu Lihua and Huang Le *. Experimental study and proposal of a design model of ultra-high performance concrete filled steel tube columns subjected to fire. Engineering Structures, 2023, 280:115697.

[7] Yu Min*, Hu Xuan, Xu Lihua, Cheng Shanshan. A General Unified Method for Calculating Fire Resistance of CFST Columns Considering Various Types of Steel and Concrete. Journal of Building Engineering, 2022, 59:105125.(SCI)

[8] Wang Tan, Yu Min*, Zhang Xipeng, Cheng Shanshan, Liu Sumei. Post-Fire Mechanical Behaviour of Ultra-High-Performance Concrete-Filled Steel Tube (UHPCFST) Stub Columns under Compression. Journal of Constructional Steel Research, 2022, 196:107384. (SCI)

[9] Yu Min, Hu Xuan, Chi Yin, Ye Jianqiao. A Unified Method for Calculating the Fire Resistance of Concrete-Filled Steel Tube with Fire Protection Under Combined Loading. Journal of Constructional Steel Research, 2020,168:106003.(SCI)