load yield curve

With linear elasto-plastic load transfer function,a set of analytical equations for the axial load-settlement curve of thin-wall cast-in-situ tubular pile were deduced.

考虑大直径灌注筒桩土芯分担荷载以及筒桩与土芯内摩阻力发挥情况,采用一种桩内侧阻、桩外侧阻和桩端阻荷载传递模型,推导出一种沉管灌注筒桩的轴向荷载-沉降曲线的解析算式,并计算得到任意截面桩身轴力及内外侧摩阻力表达方程式。

With linear elastic-plastic load transfer function, a set of analytical equations for the axial load-settlement curve of thin-wall cast-in-situ tubular pile are deduced.

考虑大直径灌注筒桩土芯分担荷载以及筒桩与土芯内摩阻力发挥情况,采用线弹性-塑性荷载传递函数,推导出一种沉管灌注筒桩的轴向荷载-沉降曲线的解析算式,并计算得到任意截面桩身轴力及内外侧摩阻力表达方程式。

Presents the analysis model built with nonlinear interface elements and nonlinear soil elements to simulate the construction and loading of base-grouted pile and concludes that the load-settlement curve of base-grouted pile is progressive,and remarkably different from that of bored pile.

结果表明桩底压浆桩的荷载-沉降曲线为“缓变型”,与普通灌注桩荷载-沉降曲线显著不同;桩底压浆桩的承载力较之普通灌注桩有显著提高;土体性质、压浆压力和压浆腔高度对桩底压浆桩提高承载力的效果有显著影响。

For example,the resistance parameters of piles,the load-settlement curves and the ultimate bearing capacity of piles of a highway bridge were determined by use of the proposed approach.

以某公路大桥的O-cell试桩为例,采用本文所提出的途径确定出了桩阻力参数、相应整桩的荷载沉降曲线及极限承载力。