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Steel and Composite Structures Volume 59, Number 4, May 25 2026 (Special Issue) pages 539-556 DOI: https://doi.org/10.12989/scs.2026.59.4.539 |
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Experimental study on the flexural behaviour of composite slabs with closed Fe-Mn damping steel profiled sheets |
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Jiangwen Li, Yejia Wang, Shanglin Lv, Li Ma, Wei Liu,
Xuemin Wang, Huiyong Ban
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| Abstract | ||
| Fe-Mn damping steel exhibits excellent damping characteristics and mechanical properties, providing an innovative material solution for vibration and noise reduction in modern building structures. This study systematically investigates the flexural behaviour and acoustic performance of composite slabs incorporating closed Fe-Mn damping steel profiled sheets through four-point bending tests on four damping steel specimens and one Q355 conventional mild (CM) steel control specimen. Based on the experimental results, the typical failure modes were revealed and the effects of rib height, rib pitch, and concrete thickness on the flexural behaviour were examined. The test results were further compared with design methods in accordance with the current Chinese (JGJ 138-2016) and European (EN 1994-1-1) standards, demonstrating that the design provisions are conservatively safe and can be directly applied to the design of such damping steel composite slabs. In addition, acoustic measurements confirmed the superior noise reduction performance of the damping steel compared with CM steel. This research provides valuable reference for the engineering application of structural components that integrate load-bearing capacity with vibration and noise reduction functions. | ||
| Key Words | ||
| Fe-Mn damping steel; closed profiled steel sheet; composite slabs; flexural behaviour; noise reduction performance; design method | ||
| Address | ||
| Jiangwen Li:1)Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing,100083, China 2)Ansteel Beijing Research Institute Co., Ltd., Beijing 102200, China Yejia Wang:Department of Civil Engineering, Tsinghua University, Beijing 100084, China Shanglin Lv:Central Research Institute of Building and Construction Co., Ltd, MCC Group, Beijing 100088, China Wei Liu:Shanghai Baoye Group Corp., Ltd, Shanghai 200941, China Xuemin Wang:Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing,100083, China Huiyong Ban:Department of Civil Engineering, Tsinghua University, Beijing 100084, China | ||