Vol. 22, No. 2, pp. 237-243 (2026)
EXPERIMENTAL STUDY ON MECHANICAL PROPERTIES OF
PREFABRICATED BEAM AND SLAB UNITS OF NEW ASSEMBLED
RAFT FOUNDATION
Ji-Zhi Su 1, Chen-Lei Wang 2, Wen-Tao Qiao 2, 3, *, Wu-Chen Zhang 1 and Li-Huan Wang 1
1 Economic and Technological Research Institute, State Grid Hebei Electric Power Co., Ltd, Shijiazhuang, China
2 School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang, China
3 Key Laboratory of Roads and Railway Engineering Safety Control (Shijiazhuang Tiedao University),
Ministry of Education, Shijiazhuang, China
*(Corresponding author: E-mail:This email address is being protected from spambots. You need JavaScript enabled to view it.)
Received: 19 January 2025; Revised: 23 July 2025; Accepted: 2 August 2025
DOI:10.18057/IJASC.2026.22.2.9
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ABSTRACT
Prefabricated foundations offer numerous advantages such as convenient construction, high bearing capacity, energy efficiency, environmental friendliness, and less wet work on-site. Accordingly, this study introduces a novel structural system based on an assembled beam-slab foundation. To further explore the mechanical properties of the precast beam slab units in the modular beam-slab foundation, experimental research and numerical simulation were conducted. Test findings indicate that the structure primarily undergoes bending-type failure. From the yielding of the specimen to the attainment of the ultimate load, the specimen undergoes significant displacement changes, indicating that the structure possesses good bending resistance and ductility. Based on the experimental results, an accurate finite element model was established for parametric analysis. The findings indicate that the bearing capacity of the foundation slab is significantly influenced by parameters such as reinforcement ratio and slab thickness, with the reinforcement ratio having the most pronounced effect. The ultimate load-carrying capacity increases with the reinforcement ratio, composite slab thickness, and concrete strength. In contrast, the thickness of the C-section steel has the least effect on the bearing capacity, with the foundation slab’s bearing capacity remaining virtually unchanged.
KEYWORDS
Assembled raft foundation, Prefabricated beam and slab units, Static loading test, Numerical simulation
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