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为了准确预测地震作用下高性能纤维增强混凝土剪力墙的受力性能,综合考虑压、弯、剪相互作用的破坏机理以及纤维增强混凝土超高受拉应变硬化性能,基于修正压力场理论和单向弯剪模型,提出了高性能纤维增强混凝土剪力墙变形能力分析模型。通过与4片高性能纤维增强混凝土剪力墙低周往复试验骨架曲线的对比研究,验证了剪力墙分析模型的准确性,讨论了影响其变形能力的的主要因素。研究结果表明:该文提出的考虑轴力-弯矩-剪力相互作用的高性能纤维增强混凝土剪力墙荷载-变形模型,可用于单调荷载作用下剪力墙的变形能力分析。
In order to accurately predict the mechanical behavior of high-performance fiber-reinforced concrete shear walls under earthquake, considering the failure mechanism of the interaction of compression, bending and shearing as well as the super high tensile strain hardening of fiber-reinforced concrete, based on the modified pressure field theory and single To the bending shear model, the analysis model of the deformation ability of high-performance fiber reinforced concrete shear walls is proposed. By comparing with the low cycle reciprocating test skeleton curve of four high performance fiber reinforced concrete shear walls, the accuracy of the shear wall analysis model is verified and the main factors that affect its deformation capacity are discussed. The results show that the load-deformation model of high-performance fiber-reinforced concrete shear wall considering axial-moment-shear interaction proposed in this paper can be used to analyze the deformation ability of shear walls under monotonic loading.