飛来物の高速衝突を受ける鋼製ライナー付き鉄筋コンクリート板の耐衝撃性に関する実験と解析

概要

論文の詳細を見る
In recent years, extensive analytical and experimental studies have been carried out to establish a rational structural design method for reinforced concrete structures against local damage caused by the impact of various external projectiles. Through these studies, several techniques for improving the impact resistance of reinforced concrete plates have been proposed. Of these techniques, attaching a steel liner on the rear face of the plates is considered to be one of the most effective methods. The object of this study is to evaluate quantitatively the effect of a steel liner attached to a reinforced concrete plate in preventing local damage caused by the impact of rigid projectiles. To achieve the object, extensive impact tests were carried out with a total of fifty reinforced concrete panels of 60cm-square. Based on test results, the effect of a steel liner on both scabbing and perforation was evaluated quantitatively by converting steel liner with a certain thickness into the equivalent concrete thickness. And evaluation of the liner effect was attempted analytically using the Discrete Element Method and the fracture process of various damage modes with and without the steel liner could be well simulated.
社団法人日本建築学会の論文
1995-11-30