（湖南大学结构工程研究所  长沙 410082）
【提要】  采用夹层板理论推导了钢筋混凝土箱形空心板柱中节点在竖向剪力作用下的抗冲切承载力计算公式，分析了影响箱形空心板抗冲切的主要影响因素；与国内外的有关数据比较表明，计算公式具有较高的精度，可以在实际工程中应用。
【关键词】  空心板  夹层板  中柱节点  冲切
Calculation of Punching Strength for Openweb Reinforced Concrete Slabcolumn Connection Casting in Place/Liu Chunyan，Tu Wenge，Zou Yinsheng（Institute of Structural Eng.，Hunan Univ.，Changsha 410082，China）
Abstract:By adopting sandwich plate theory，the formula to calculate the punching capacity of reinforced concrete slabcolumn connections with vertical shear action is deduced，and the main factors which effect punching capacity of openweb plate are analyzed.Comparing with domestic and foreign data，it is shown that the formula has better precision and can be used in actural engineering.
Keywords:openweb plate；sandwich plate；connection of middle column；punching shear