柱边开孔砼板的抗冲切能力试验研究

Experimental Investigation on Punching Capacity of Concrete Slab with Holes Beside Column

本文报导10块开孔砼板的试验结果。一块没有孔洞,其余9块含有不同位置的孔洞。文中阐述了板的破坏形态和特征,讨论了孔洞对抗冲切能力的影响,并提出这类构件抗冲切能力的计算方法。按此方法计算所得值与国内外试验结果的符合程度较好。本试验结果可供今后修订设计规范作参考。

The test results of ten full-scale concrete slabs with holes beside column are reported. One specimen has no hole, while the remaining nine are with holes differently arranged beside column.This paper describes the failure patterns and the properties of the slabs with holes and discusses the influence of the variously located holes on the punching capacity of slab. A proposed method of calculating punching capacity of such elements are put forward and the calculation results agree well with the test results reported at home and abroad. These test results can be used as reference in revising design code hereafter.