混凝土方形冲切板挠度的实用计算公式

A convenient formula for calculating the deflection of concrete slab subjected to punching shear

通过混凝土简支方板的冲切试验,得到冲切板在破坏前各受力阶段的板面变形分布和中心点荷载—挠度曲线,在分析荷载—挠度曲线影响因素的基础上,提出冲切板挠度的实用计算公式.计算结果与实测曲线吻合良好.

The deformation distributing and the load-deflection characteristic of steel fiber high-strength concrete square slab subjected to punching shear are provided according to the tests. As a matter of convenience, usable formulas for calculating the deformation of punching shear slab before failure are presented. The comparison shows good agreement between the calculating values and the testing curves.