新型保温承重混凝土砌块砌体抗剪性能试验研究

Experimental study on shear performance of new type of insulation bearing concrete block masonry

进行了新型保温承重混凝土砌块砌体的抗剪性能试验研究,考察了薄抹灰砂浆和普通砂浆保温承重混凝土砌块砌体的抗剪承载力,分析其受剪破坏特征。结果表明,新型保温承重混凝土砌块砌体受剪破坏形态和普通混凝土空心砌块砌体基本相似;薄层砂浆和销键均可提高砌块砌体的抗剪强度。并且在此基础上提出新型混凝土保温砌块砌体抗剪强度计算式。

The shear behavior tests for new type of insulation bearing concrete block masonry were carried out.The shear bearing capacity of thin layer mortar and ordinary mortar insulation bearing concrete block masonry was investigated,and it′s shear failure characteristics were analyzed.The results show that the shear failure mode of insulation bearing concrete block is almost the same as that of the ordinary concrete hollow block masonry.The thin layer mortar and pin key can improve the shear strength of the block masonry.And on this basis,the calculation formula of new insulation bearing concrete block masonry shear strength was established.