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为了更好地研究钢筋混凝土的结构性能,文中以超高层建筑中单层钢筋混凝土薄板为研究目标,对该结构弯曲力学性能进行有效分析。在基于有限元弹性理论及钢筋混凝土薄板理论上,求解出钢筋混凝土薄板不同方向的弯曲刚度、单元刚度矩阵及内力矩阵,在继续计算板开裂后结点位移,并结合内力矩阵求出混凝土薄板整体刚度及整体内力矩阵;通过设计并制作混凝土薄板进行加载实验,分析混凝土薄板不同厚度及不同强度等级对单层钢筋混凝土薄板弯矩和挠度的影响规律。实验证明,实验结果数据显示,准确地分析出了钢筋混凝土薄板的弯曲力学性能。
In order to better study the structural performance of reinforced concrete, the paper focuses on the single-story reinforced concrete thin-slab in super-tall buildings, and analyzes the mechanical properties of the structure flexibly. Based on the theory of finite element elasticity and the theory of reinforced concrete slab, the bending stiffness, element stiffness matrix and internal force matrix in different directions of the slab are calculated, and the displacement of the slab after the splitting of the slab is calculated. Then the whole concrete slab Stiffness and overall internal force matrix. Through the design and fabrication of concrete slabs, the influence of different thickness and different strength grades of concrete slab on the moment and deflection of single-layer RC slab is analyzed. Experiments show that the experimental data show that the bending mechanics performance of reinforced concrete thin plate is accurately analyzed.