浸水砖砌体柱轴压性能及机理研究

Study on axial compressive performance and mechanism of wetted prick masonry columm

通过对28个砖砌体柱进行轴心抗压试验,研究了浸泡条件(0,24,48h;0,0.5,1.0,1.5m)对水泥砂浆、石灰砂浆砖砌体柱轴压性能的影响,对比分析了砖砌体柱破坏形态、轴压承载力、轴力-变形关系随浸泡条件的变化规律,建立了不同砂浆砖砌体柱轴心抗压承载力、轴力-变形随浸泡时间、深度的关系曲线,并探讨了浸水砖砌体柱的破坏机理。结果表明:水泥砂浆砖砌体柱的轴压承载力随浸泡时间的增加而降低,石灰砂浆转砌体柱的轴压承载力随浸泡时间的增加整体呈现先降低后缓慢升高的趋势;浸泡深度对砖砌体柱的轴压承载力影响极小。

To study the effect of sock conditions(0,24,48h;0,0.5,1.0,1.5m)on the compression performance of brick masonry built with two kinds of mortars,28 brick masonry specimens were tested.Based on the damage phenomena and compressive bearing capacity,the destruction mechanism of the brick masonry is put forward and some rules of strength development of brick masonry soaked in water are acquired.The result shows that with the increase of sock time,compressive bearing capacity of both of cement mortars bricks masonry specimens become lower.With the increase of sock time,compressive strength of lime mortar bricks masonry specimens increase after reduce first.but The depth of the water doesn t affect the strength of the brick masonry column.