【摘要】 通过几个电站的有限元计算和仿真材料模型试验成果,分析混凝土坝下游面钢衬钢筋混凝土管道的轴向应力分布规律及其对管壁应力的影响,可作为管壁三维强度分析的依据,并指出在轴向压力和内水压力作用时裂缝更早发生。更多还原

【Abstract】 This paper analyses the distributive law of axial compression in concrete wall and its influnce on strength of reinforced concrete penstock with steel lining located on the downstream surface of a concrete dam by the finite element method and model tests with material similar to prototype. Conclusions Obtained can be used as basis for analysis of the three-dimensional strength of such structure. It is shown from model tests that cracks appear earlier in concrete when the axial compression and the internal water pressure are in action.更多还原