基于双曲线模型的抗拔桩荷载传递分析方法研究

实际工程中,建筑物并不总是产生沉降,当受到地下水浮力、地震荷载以及风荷载时,建筑物也可能产生向上移动的趋势,承受上拔荷载的抗拔桩就是用来抵抗这部分作用力的有效方法之一。然而相对于抗压桩而言,目前关于抗拔桩的研究不够深入。该文将荷载传递法应用到抗拔桩的变形分析,即建立了基于双曲线模型的荷载传递方程,应用边界条件、连续性条件推导出抗拔桩的荷载-位移关系式。

Analysis on Load-transfer Characters of Uplift Piles under Tensile Loading Based on Hyperbolic Model

The buildings do not always move with a result in settlement in practical engineering.The buildings will trend to move upward under certain circumstances of underwater flotage,earthquake loading and wind loading.The uplift piles under uplift loadings are used as one of the effective methods to resist these kinds of external forces.However,the study of uplift pile is inadequate relative to the compression pile.This thesis applies the load-transfer function method into the analysis of deformation of uplift piles,and that is to set up a hyperbolic model of load-transfer formulations,and uses the boundary conditions and continuity conditions to figure out the load-displacement relationships of uplift piles.