Please use this identifier to cite or link to this item: https://doi.org/10.3390/ma13184129
Title: Behavior of a two-way lightweight steel-concrete composite slab voided with thin-walled core boxes towards sustainable construction
Authors: Huang, Y.
Gan, V.J. 
Chen, H.
Yang, J.
Keywords: Flexural performance
Membrane effect
Steel-concrete composite slab
Sustainable construction
Thin-walled core boxes
Issue Date: 2020
Publisher: MDPI AG
Citation: Huang, Y., Gan, V.J., Chen, H., Yang, J. (2020). Behavior of a two-way lightweight steel-concrete composite slab voided with thin-walled core boxes towards sustainable construction. Materials 13 (18) : 4129. ScholarBank@NUS Repository. https://doi.org/10.3390/ma13184129
Rights: Attribution 4.0 International
Abstract: High-performance engineered structural systems are crucial for sustainable development in the field of construction. In our previous research, a novel steel-concrete composite beam with transverse and longitudinal hidden girders exhibited good flexural behavior and desirable ductility. However, there is a dearth of studies on the flexural response of a steel-concrete composite slab voided with thin-walled core boxes. Therefore, in this study, we investigated the overarching flexural mechanism of the proposed structure when subjected to uniform vertical loads. The experimental detection results illustrated that the deflection value of the composite beam was 95.75% less than the GB/T 50152-2012 recommendation. Numerical results further validated this observation. The recorded data from the strain profile at the mid-span of the frame girder indicated that there was a considerable membrane effect, which delayed the strain growth of rebars, yielding appreciable bearing capacity. Thus, two original approaches to predicting the ultimate load of this novel structure are proposed, considering limit analysis using the upper-bound method and the membrane effect, with the latter closely linked to the experimental results. The findings can promote the extensive application of similar sustainable systems and inspire further advancements in advanced engineering structures. © 2020 by the authors.
Source Title: Materials
URI: https://scholarbank.nus.edu.sg/handle/10635/202600
ISSN: 1996-1944
DOI: 10.3390/ma13184129
Rights: Attribution 4.0 International
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