童  兴
(华东建筑设计研究院有限公司，上海200002)

[摘要] 普通混凝土小型空心砌块砌体由于其水平抗剪能力较差，一直阻碍其推广。通过在砌块中设置T形销键，可以很好地解决上述问题。通过对75个连锁式混凝土小型空心砌块砌体与普通混凝土小型空心砌块砌体在5种不同竖向力下抗剪承载力和变形能力的试验研究，证明设置T形销键的连锁式砌体确实可以有效改善砌体的抗剪能力和变形能力，从而能够提高砌体建筑的抗震性能，具有广泛的推广价值，是替代粘土砖的新型墙体材料。
[关键词] 连锁式混凝土小型空心砌块；销键；抗剪强度；变形

Experiment research on shear capability of chained small-sized hollow concrete block masonry
Tong Xing
(East China Architectural Design & Research Institute Co., Ltd., Shanghai 200002, China)

Abstract: Common small-sized hollow concrete block masonry is limited for its application due to its weak capability of shear strength. Putting a small T shape concrete bolt into the hole of the block, can solve the problem effectively. To study the properties of shear strength and deformation, five different axial loads experiment was carried out to compare 75 chained small-sized hollow concrete block masonries and 75 common small-sized hollow concrete block masonries. The result shows the T shape concrete bolt can greatly increase the shear capability of the masonry and enlarge the relative displacement between up and down blocks. Furthermore, it can improve the seismic capability ofthe masonry wall. In all, chained small-sized hollow concrete block is a new wall material to replace clay brick in building market and has good values to be promoted.
Keywords: chained small-sized hollow concrete block;T shape concrete bolt; shear strength; deformation