抗拔桩桩距对筏基基础梁内力的影响

Influence on Internal Force of the Raft Foundation Beam Caused by the Distance between Uplift Pliles

在布置相同抗拔桩数量的情况下,抗压抗浮工况会有各自对应的最佳布桩方式,而布桩时桩与柱荷载作用点之间的距离是影响布桩效果的重要因素。为直观研究抗拔桩与柱荷载距离对地基梁内力的影响,本文结合某工程实例,将抗拔桩全部布置在筏基地基梁下,通过改变抗拔桩与柱荷载之间的距离,分析在抗压和抗浮两种不同工况下,桩-柱距离对筏基地基梁内力的影响,并找出最佳平衡点。

At different underground water level,there is a corresponding uplift pile arrangement type to ensure the low internal force of the raft foundation beam. An important factor to distinguish different arrangement type is the distance between the pile and the column load. In order to study this factor intuitively,all of the uplift piles are arranged under the beam. By using MIDAS / GTS,observe the influence on the internal force of the raft foundation beam caused by the distance at different underground water level could be obtained and a perfect distance could be found.