党争, 梁兴文, 邓明科. 考虑压-弯-剪相互作用的纤维混凝土剪力墙变形能力分析[J]. 工程力学, 2014, 31(1): 113-121. DOI: 10.6052/j.issn.1000-4750.2012.09.0670
引用本文: 党争, 梁兴文, 邓明科. 考虑压-弯-剪相互作用的纤维混凝土剪力墙变形能力分析[J]. 工程力学, 2014, 31(1): 113-121. DOI: 10.6052/j.issn.1000-4750.2012.09.0670
DANG Zheng, LIANG Xing-wen, DENG Ming-ke. DEFORMATION CAPACITY ANALYSIS OF FIBER CONCRETE SHEAR WALL CONSIDERING AXIAL-FLEXURE-SHEAR INTERACTION[J]. Engineering Mechanics, 2014, 31(1): 113-121. DOI: 10.6052/j.issn.1000-4750.2012.09.0670
Citation: DANG Zheng, LIANG Xing-wen, DENG Ming-ke. DEFORMATION CAPACITY ANALYSIS OF FIBER CONCRETE SHEAR WALL CONSIDERING AXIAL-FLEXURE-SHEAR INTERACTION[J]. Engineering Mechanics, 2014, 31(1): 113-121. DOI: 10.6052/j.issn.1000-4750.2012.09.0670

考虑压-弯-剪相互作用的纤维混凝土剪力墙变形能力分析

DEFORMATION CAPACITY ANALYSIS OF FIBER CONCRETE SHEAR WALL CONSIDERING AXIAL-FLEXURE-SHEAR INTERACTION

  • 摘要: 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。

     

    Abstract: To predict the seismic behavior of high performance fiber reinforced concrete shear walls under earthquake excitations, a simple approach is developed based on the modified compression field theory (MCFT) and the uniaxial shear-flexure model (USFM), considering the mechanisms of axial-flexure-shear interaction and high strain-hardening in tension behavior of fiber reinforced concrete. The proposed model was verified through a comparison with the deformation envelope of cyclic loading tests of 4 high performance fiber reinforced concrete shear walls, and the main factors influencing deformation capacity were discussed. The results show that the proposed load-deformation model can be used to predict deformation capacity for high performance fiber reinforced concrete shear walls subjected to monotonic static load.

     

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