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斜拉桥的索塔锚固区受力情况较为复杂,在对该区域进行设计计算时,常采用实体建模计算结构各点的应力来评价结构的安全性,这种方法不仅繁琐,而且力学概念不清,往往不能得到最优结果。本文针对斜拉桥索塔锚固的塔壁锚固形式进行简化分析,研究了索塔锚固区环向预应力简化设计理论及其计算方法,该方法能够适应目前大多数斜拉桥的设计计算,具有较高的工程实用价值。
Cable-stayed bridge anchorage zone stress situation is more complex, in the design and calculation of the region, often using solid modeling to calculate the stress of the structure to evaluate the structural safety, this method is not only cumbersome, and the concept of mechanics Unclear, often can not get the best result. In this paper, a simplified analysis of the tower wall anchorage form of cable-stayed bridge pylon anchorage is carried out. The simplified design theory and calculation method of annular prestressing force in anchorage zone of cable tower are studied. The method can adapt to the design and calculation of most cable- High engineering value.