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斜拉索锚固区结构复杂,受力集中,是桥梁设计的一个关键。掌握锚固区在斜拉索作用下应力大小及其分布是十分重要的。简化锚固区域计算模型,抽取其中最关键的锚箱部分,运用M IDA S有限元软件进行建模、计算。通过分析锚箱应力分布,为实际桥梁的设计和施工提供可靠的依据和合理的建议.选取的是等效板厚法进行分析,该方法下得到的锚箱应力都在安全应力范围内。
Stayed cable anchorage zone structure is complex, concentrated stress, is a key bridge design. It is very important to grasp the size and distribution of stress in the anchorage zone under the action of stay cables. Simplify the calculation model of anchorage area, extract the most critical part of the anchor box, use M IDA S finite element software to model and calculate. By analyzing the stress distribution in the anchor box, it provides a reliable basis and reasonable advice for the design and construction of the actual bridge.The equivalent plate thickness method is selected for analysis, and the stress of the anchor box under the method is within the safety stress range.