预应力锚索地梁的内力计算

Internal Force Calculation of Beams with Prestressed Anchor-Rope on Foundation

讨论了高边坡工程中预应力锚索地梁的内力按Winkler假定和弹性半无限地基梁计算等方法 ,通过工程实例对比了这些计算方法 ,并根据对计算结果的分析讨论了各自的适用条件。分析了锚索张拉阶段和工作阶段地梁的受力机理 ,提出应对这两个阶段分别计算地梁的内力 ,并建议了合理的验算方法。

The calculation methods of internal forces in beams with prestressed anchor rope on foundation in high slope project are discussed based on Winklers hypothesis, and the beam on half space elastic foundation, respectively. These methods are compared with each other in the internal force calculation of an engineering case. According to the analysis of calculation results, the applicable condition for each calculation method is concluded. In addition, the mode of force acting on beam on foundation is analyzed for the pulling and working periods of anchor ropes. It is pointed out that the internal forces in either the two periods should be calculated respectively. The rational verification methods are also suggested in this paper.