Experimental study on the flexural behaviour of composite slabs with closed Fe-Mn damping steel profiled sheets
Jiangwen Li,Yejia Wang,Shanglin Lv,Li Ma,Wei Liu,Xuemin Wang,Huiyong Ban
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.
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
Li Ma — 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
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