Numerical Simulations on Impact Resistant Behavior of Rahmen-Slab Type RC Structures

Abstract:

In this paper, in order to gain basic knowledge of the dynamic response charac-teristics of rockfall protection galleries, falling-weight impact tests of the small size frame-slabtype reinforced concrete (RC) structures were conducted and the impact-resistant behaviorwas investigated. Also, to establish the prediction method for accumulated damage and resid-ual load-carrying capacity of the structures under repeated impact loading, a three-dimensionalelasto-plastic FE analysis method was proposed. Its applicability is discussed by comparing withthe experimental results. The following results are obtained from this study: (1) under impactloading, the structures reach the ultimate state in the punching shear-failure mode; and (2)accumulated damage of the galleries can be rationally evaluated by using the time history ofdeflection and crack patterns obtained by applying the proposed numerical analysis method.

• Periodical: Applied Mechanics and Materials (Volume 82)
• Pages: 583-588
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.82.583
• Online since: July 2011
• Authors: Hisashi Kon-No, Hiroaki Nishi, Satoru Yamaguchi, Toshikazu Sawamatsu, Norimitsu Kishi
• Keywords: Elasto-Plastic Numerical Analysis, Impact Loading, RC Slab, Rockfall Protection Gallery

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