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在对螺旋扭状材料粘结锚固性能进行系统试验、测试基础上,用数理分析方法对螺旋扭增强效应的发生机理进行剖析与量化研究。通过力学分析、数学建模,分阶段研究了螺旋扭增强材料在拉拔过程中荷载力与滑移量的关系,并建立和推导了相应的本构关系计算公式,形成了完整的预测模型系统;预测曲线与试验曲线相对比,得到基本吻合的效果。由此不仅深化了对螺旋效应机制的理论认识,而且也为现有螺旋扭材料的材料性能、几何外形参数的优化以及新型结构材料设计研制提供理论依据。
Based on the systematic tests and tests on the bonding and anchoring properties of spiral twisted materials, the mechanism of spiral torsional reinforcement effect was analyzed and quantified by mathematical analysis. Through mechanics analysis and mathematical modeling, the relationship between load force and slippage of spiral torsional reinforcements in the process of drawing was studied in stages, and the corresponding formulas of constitutive relation were established and deduced to form a complete predictive model system The predicted curve is in good agreement with the experimental curve. This not only deepens the theoretical understanding of the mechanism of helical effect, but also provides a theoretical basis for the material properties, the optimization of geometric shape parameters and the design and development of the new structural materials of the existing helical torsional material.