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水平荷载作用下,桩与承台节点处往往承担较大的弯矩作用。基于室内带承台单桩模型试验,对桩顶嵌入承台不同深度的单桩-承台体系进行水平拟静力研究;并考虑了桩周土对桩体的约束作用。通过测试不同嵌固深度条件下桩身弯矩、桩顶位移随加载位移的变化,得出桩顶嵌入承台的深度对单桩-承台体系的水平受力性能具有明显的影响。嵌入深度大,有利于单桩水平承载力的提高。
Under the action of horizontal load, the pile and the cap node often bear a greater role of bending moment. Based on the model test of single pile with indoor platform, the horizontal quasi-static research is carried out on the pile-cap platform system embedded in the pile cap at different depths. The constraint of the surrounding soil on piles is also considered. By testing the pile bending moment and the displacement of pile top with different loading depths, the results show that the depth of pile cap embedded in the pile cap has obvious influence on the horizontal force performance of pile-cap pile system. Embedded depth, is conducive to the improvement of horizontal bearing capacity of single pile.