Nghiên cứu mô phỏng số đánh giá khả năng chịu lực của bản sàn bê tông cốt thép loại dầm được gia cường lớp bê tông siêu tính năng UHPC

The current study evaluates the load-bearing capacity of a conventional reinforced concrete (RC) slab strengthened with an Ultra-High Performance Concrete (UHPC) layer. Numerical simulations are used to determine the maximum load capacity, crack formation, and crack propagation in the reinforced slab strengthen structure. The numerical model is validated by comparing its results with experimental data. Parametric analyses are conducted to assess the influence of the UHPC layer thickness and the longitudinal reinforcement content in the tensile region on the load-bearing capacity of the composite slab. The results show that the UHPC layer enhances the slab’s performance, improving the maximum bending capacity by 34% and the cracking load capacity by 41% compared to a conventional reinforced concrete slab.