No significant difference in the strength degradation among all static loading specimens and no inner cone cracks occurred in static loading specimens.
不同加载时间下的静态加载试件强度下降的差异无统计学意义，同时不伴随内锥状裂纹的产生。
2
The deformation not only reflects the flexure behavior of slab at every loading stage, but also affects the stress status on the surface of punching shear cone and the ultimate capacity of the slab.