Author(s)

N. Ishikawa

Abstract

Current impact problems and progress in civil engineering in Japan N. Ishikawa Department of Civil Engineering, National Defense Academy, Yokosuka 239, Japan ABSTRACT This paper presents the current impact problems concerning the civil engi- neering structures in which I have been recently investigated. That is, (1) the prototype impact test and analysis of prestressed concrete rock-shed structures in the mountainous road by falling rocks, (2) the model tests and the computational approach for the steel check dams by the huge rocks in the debris flow. INTRODUCTION The members of the subcommittee of impact problems, committee of the structural engineering, Japan Society of Civil Engineering (JSCE) have been investigated the rational method on the impact resistant design of the rock- shed structure, the check dams and the protective structures against the aircraft, car and ship crash. Current impact problems for the civil engineer- ing structures in Japan are listed as follows :

Keywords