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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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荷载-温度联合作用下地热桩的弹性性状分析
DOI: 10.3969/j.issn.1671-7627.2014.05.015, PP. 83-89
Keywords: 地热桩,荷载-温度联合作用,弹性性状,桩侧阻力,桩身轴力
Abstract:
为了揭示温度作用对地热桩承载性能的影响,建立了地热桩有限元数值模型进行分析。通过改变桩侧约束、桩端约束和桩土接触属性来模拟地热桩工作环境对地热桩温度作用效应的影响,得到不同工作环境下地热桩桩身轴力,桩侧摩阻力分布曲线。研究发现:桩侧约束越强,地热桩温度作用效应越显著;桩端约束会改变中性点的位置;桩土接触属性对地热桩温度作用效应影响并不显著。
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