Mechanical Performance of Square Box-Type Core Mold Hollow Floor Slabs Based on Field Tests and Numerical Simulation Article Swipe
Ziguang Zhang
,
Fengyu Chen
,
Wenjun Yu
,
Jie Sheng
,
Zongjin Li
,
Ankang Hu
·
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.3390/buildings15162948
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.3390/buildings15162948
This study investigates the mechanical performance and failure mechanisms of large-span, cast-in situ hollow-core floor slabs with square-box core molds under vertical loading. A combination of in situ tests and refined numerical simulations was used to investigate the slab’s behavior. An 8 m × 8 m hollow slab from the Xinluzhou Industrial Park in Hefei, China, was subjected to five-stage cyclic loading up to 9.0 kN/m2 using a distributed water tank system. Real-time strain monitoring showed that the slab remained within the elastic range, exhibiting a linear strain-load relationship and bidirectional bending stiffness, with less than 5% deviation between the X and Y directions. Finite element analysis, incorporating a concrete plastic damage model and a bilinear steel model, replicated the experimental stress distribution, with errors of less than 6.9% for reinforcement and 8.8% for concrete. The simulation predicted an ultimate load-bearing capacity of 27.2 kN/m2, with initial failure indicated by diagonal cracks at the column capital edges, followed by flexural cracks at the slab mid-span. These findings clarify the bidirectional bending behavior and stress redistribution, characterized by “banded gradient” and “island-shaped” stress zones. This study provides valuable insights and design optimization strategies to improve the structural performance and safety of hollow-core floor slabs in high-rise buildings.
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- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3390/buildings15162948
- https://www.mdpi.com/2075-5309/15/16/2948/pdf?version=1755686716
- OA Status
- gold
- Cited By
- 1
- References
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- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4413354396
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Raw OpenAlex JSON
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https://openalex.org/W4413354396Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.3390/buildings15162948Digital Object Identifier
- Title
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Mechanical Performance of Square Box-Type Core Mold Hollow Floor Slabs Based on Field Tests and Numerical SimulationWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2025Year of publication
- Publication date
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2025-08-20Full publication date if available
- Authors
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Ziguang Zhang, Fengyu Chen, Wenjun Yu, Jie Sheng, Zongjin Li, Ankang HuList of authors in order
- Landing page
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https://doi.org/10.3390/buildings15162948Publisher landing page
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https://www.mdpi.com/2075-5309/15/16/2948/pdf?version=1755686716Direct link to full text PDF
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goldOpen access status per OpenAlex
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https://www.mdpi.com/2075-5309/15/16/2948/pdf?version=1755686716Direct OA link when available
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Square (algebra), Mold, Structural engineering, Core (optical fiber), Field (mathematics), Materials science, Type (biology), Computer simulation, Engineering, Mechanical engineering, Composite material, Geometry, Mathematics, Simulation, Geology, Paleontology, Pure mathematicsTop concepts (fields/topics) attached by OpenAlex
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1Total citation count in OpenAlex
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10Other works algorithmically related by OpenAlex
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