论文部分内容阅读
横缝开合状态对高坝深孔结构力学行为有重要影响。建立了考虑不同横缝初始间隙及其开合行为影响的高坝深孔分析模型,分别从“结构变形、开裂状态、应力分布及实际配筋受力状态”4个角度,结合实际工程,获取了横缝开合状态影响下孔口结构的力学行为特征,弥补了传统高坝深孔结构分析中因简化横缝状态而造成的设计偏差。研究表明,横缝初始间隙越大,高坝深孔结构变形、开裂、应力及钢筋受力等力学行为特征越趋于不利状态,结构受力性能明显降低,正确描述横缝开合状态是分析深孔真实力学行为乃至合理配筋的重要保障。
Transverse joint opening and closing status of high dam deep hole structural mechanics have an important impact. The analytical model of high dam deep hole considering the influence of the initial clearance and the action of opening and closing of different transverse joints was established. From the four aspects of “structural deformation, cracking state, stress distribution and actual state of reinforcement”, combined with the actual engineering The mechanics behaviors of the orifice structure under the influence of the transverse seam opening and closing state were acquired, which made up the design deviation caused by the simplified transverse seam state in the analysis of the deep hole structure of the traditional high dam. The results show that the larger the initial gap, the more deformable, delaminated, stress and reinforcing steel tend to unfavorable mechanical properties of deep-hole deep-hole structures, and the stress-bearing properties of the structure are obviously reduced. The correct description of the open- Deep hole real mechanical behavior and even reasonable reinforcement important protection.