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Review Papers | Civil Engineering | Iraq | Volume 13 Issue 4, April 2024

A Review Paper on Punching Shear Behavior of Bubbled Slabs

Imtethal H. Jaber | Waleed A. Waryosh

Abstract: Bubbled slabs are introduced to decrease the self-weight of the slab by decreasing the amount of concrete in the slab's middle. This decrease results in cost savings, a reduction in the time needed for construction, improvements in structural performance, and an increase in the slab's efficiency. Despite the many benefits that this form of slab offers, it is similar to flat slabs. The more concentrated load at the column connection causes it to experience failure-punching shear. In addition, the design equations for bubbling slabs suggested by building rules derive from experiments conducted on flat slabs. Previous investigations of bubbled slabs have shown that the punching shear of bubbled slabs is different from that of flat slabs.

Keywords: Bubble slab, flat slab, Punching shear, plastic sphere

Edition: Volume 13 Issue 4, April 2024,

Pages: 484 - 487