ABAQUS를 이용한 철근량 변화에 따른 철근콘크리트 보의 하중-처짐 거동 유한요소해석

초록

This study investigates the impact of reduced steel reinforcement on the structural performance of reinforced concrete beams under a fixed deflection. A 50 MPa concrete beam was modeled in ABAQUS using the Concrete Damaged Plasticity (CDP) approach, with detailed reinforcement geometry and material properties. The analysis compares the load-carrying capacity of a fully reinforced beam with beams having 5% and 10% reductions in steel reinforcement area. Results show a clear decrease in strength as the reinforcement area is reduced, even at constant displacement. The fully reinforced beam reached a peak load of 92 kN, while the reduced sections achieved 86.7 kN and 83 kN, respectively. This demonstrates the sensitivity of structural capacity to changes in reinforcement. The findings highlight the importance of maintaining reinforcement integrity for reliable structural performance.

키워드