Effects of Concrete Strength and Reinforcing Clear Distance on the Damage of Reinforced Concrete Slabs Subjected to Contact Detonations
By Masahiro Morishita, Hideaki Tanaka, Tomohiro Ando and Hiroyuki Hagiya
Concrete Research and Technology
Vol.15, No.2, Mar 2004 (Issue 35)
- Synopsis:
- In this study, the effects of concrete strength and reinforcing clear distance on the damage of reinforced concrete(RC) slabs subjected to contact detonations have been experimentally investigated to establish the design and damage estimation methods of RC shelters. The main results obtained are as fonows: 1) The concrete strength and the clear distance don't affect cratering and spalling significantly. 2) The dimesions of the crater and spall are relatively well predicted wlth the authors' method for the RC slabs with the ultra high strength concrete and much longer reinforcing clear distance than diameters of thecrater and spall. 3) The surface and inside cracking tends to occur more remarkably wlth higher strength concrete and longer reinforcing clear distance.
- Keywords:
- Reinforced Concrete, Contact Detonation, Damage, High Strength Concrete, Reinforcing Clear Distance
