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将钢纤维混凝土应用于桩基承台中,有利于提高承台的受力性能.但对于钢纤维混凝土桩基承台特别是厚承台的传力机理目前国内外还没有形成统一的认识.为了探讨钢纤维混凝土六桩承台的受力机理,在已有的试验研究基础上,利用大型通用有限元软件ANSYS对钢纤维混凝土六桩承台建立数值模型,模拟计算了开裂荷载、极限荷载、裂缝分布、承台内部应力应变分布等,并将计算结果与试验结果进行了对比分析.分析结果表明:有限元计算结果与试验结果吻合良好;钢纤维混凝土六桩承台的传力模型符合空间拉压杆模型.图9,表3,参12.
The application of steel fiber reinforced concrete (CFRP) to the pile cap is beneficial to improve the bearing capacity of the pile cap, but there is not a unified understanding of the force transmission mechanism between the pile cap and the steel cap. Based on the existing experimental studies, a large-scale general finite element software ANSYS was used to establish the numerical model of the six-pile cap of steel fiber reinforced concrete. The cracking load, ultimate load, Crack distribution and internal stress and strain distribution of the cap were studied.The results of the calculation and the test were compared and analyzed.The results show that the calculated results are in good agreement with the experimental results and the force transfer model of the six pile cap of steel fiber reinforced concrete Pull the bar model. Figure 9, Table 3, reference 12.