论文部分内容阅读
通过植物纤维增强砌块砌体轴心抗压强度试验,研究了其破坏特征、抗压强度、应力-应变关系、弹性模量及泊松比。基于试验研究,运用有限元方法,研究其承载力水平、裂缝发展和应力-应变分布及位移变形情况,特别是其微观层面的裂缝演化机制,从理论上深入分析其破坏机理,阐明了砌体各组成材料间的相互作用及其影响、受力薄弱区,得出了横向拉应力不足和弹性地基作用是其破坏根本原因等许多有益的结论。研究成果为植物纤维增强砌块的推广应用以及相关规程的编制、修改提供依据,为类似的试验研究提供参考。
Through the axial compressive strength test of plant fiber reinforced block masonry, the failure characteristics, compressive strength, stress-strain relationship, elastic modulus and Poisson’s ratio were studied. Based on the experimental study, the finite element method is used to study the bearing capacity, fracture development, stress-strain distribution and displacement deformation, especially the fracture evolution mechanism at the micro level. The failure mechanism is theoretically analyzed in depth, The interaction between the various materials and their influence, the region of weak stress, draw a lot of useful conclusions, such as the lack of lateral tensile stress and the elastic foundation of the destruction of the root causes. The research results provide the basis for the popularization and application of plant fiber reinforced block and the preparation and modification of relevant regulations, which can provide reference for similar experimental research.