중공 전이 슬래브의 뚫림 전단 강도

초록

The transfer slab system is a structural system that transfers the loads from the upper shear wall structure to the lower columns. This is noneconomic system due to a very thick slab and the fault is overcame by voids in the slab. And this system is the flat plate structure which is vulnerable to brittle failure, caused by punching shear in vicinity of slab-column connection. Thus, the punching shear capacity of the void system is very important. However, the current code doesn't provide a clear calculation provision for the strength of slabs with a void section. In this study, experimental study was conducted to investigate the punching shear strength of the void slab system. The shear strength of the specimens was predicted by current code and prior researches. In result, the punching shear strength of the void system is determined as the least value calculated at critical section located a distance d/2 from the face of the column and the center of the void section. Where, the effective area at critical section was used for calculation.

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