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考虑砖砌体的弹塑性性能和构件初始几何缺陷的影响,对砖砌体轴心受压构件进行了稳定分析。分析得出的稳定承载力算式的计算结果与试验值较接近,并得出了达极限承载力时构件的侧向挠曲值的算式。由分析所得轴心受压柱的稳定系数算式可以看到,稳定系数除与构件的高厚比有关外,还与砌体的抗压强度有关,而不应是与砌筑砂浆的强度等级有关。
Considering the elasto-plastic properties of brick masonry and the influence of initial geometrical defects of components, the stability analysis of the axially-pressed components of brick masonry is carried out. The calculated calculation results of the stable bearing capacity formula are close to the experimental values, and the formula for the lateral deflection of the component when the ultimate bearing capacity is reached is obtained. From the analysis of the stability coefficient formula of the axial compression column, we can see that the stability coefficient is related to the high-thickness ratio of the component, but also related to the compressive strength of the masonry, but not to the strength grade of the masonry mortar. .