1984 年 1984 巻 350 号 p. 173-176
The present work is concerned with the membrane action in reinforced concrete slabs subjected to point-loading after cracking. Much attention is focused on the characteristic stress flow of membrane effect caused by point-loading. In a finite element crack analysis, the crack patterns are well simulated and the associated principal directions of membrane forces are calculated. Plotting of both these figures for each load step reveals the strong dependence of the stress flow of membrane forces on the corresponding crack pattern.