Axial resistant testing and design of UHTCC-encased corrugated plate composite walls
Year: 2025
Type: article
Abstract: Concrete-encased composite wall has been widely applied as an efficient structural component. However, the Tong poor crack resistance of normal concrete (NC) limits its further development. In this paper, the ultra-high toughness cementitious composite (UHTCC) was employed as a replacement for NC, and a novel UHTCC-encased corrugated steel plate composite wall (UCPCW) was proposed. Due to the excellent crack resistance and high ductility of UHTCC, both the load-carrying performance and ductility of UCPCW were enhanced. Six specimens were tested to investigate the behavior of the UCPCW subjected to axial compression. The specimens exhibited satisfactory mechanical behavior, with local buckling observed in the boundary columns and embedded steel plates, alongside crushing of the concrete near the perfobond leiste (PBL) ribs. Finite element (FE) models were developed to analyze the stress distribution and the load-displacement curves of various components. Increasing the concrete depth and reducing the spacing of steel rebars enhanced the confinement effect on embedded steel plates, thereby decreasing the load softening rate of the steel plate. Through a parametric analysis, effects of material strengths and geometric dimensions were studied. Design formulas from JGJ 138 were applied to predict the load-bearing capacity of UCPCWs, with an error of less than 5 %.
Authors: Chao-Qun Yu, Jing-Zhong Tong, Fang-Zheng Xu, Ruo-Min Wu, Qing-Hua Li, Shi-Lang Xu
Institution: Zhejiang University
Language: English
Subfield: Civil and Structural Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,540
OpenAlex ID: W7106539293