AN EXPERIMENTAL STUDY ON STRENGTH OF STEEL SHEET PILE MODELS UNDER REPETITIVE COMPRESSION

This paper presents an experimental investigation on the buckling strength of stub channel columns under repetitive compression to determine reasonable cross sections of steel sheet piles against the repeated driving force by diesel hammer. The tests were performed under the pseudo-static condition using microcomputer-based servo-controlled testing system to find the deteriorating properties of steel sheet pile models undergoing the large elasto-plastic deformations under repetitive compression. Through the study, the deteriorating properties of the sheet pile model were clarified and found to be influenced by the width-thickness ratio, aspect ratio of the flange plates, and the relative dimensioning of the web and flanges.