Development of falling-off prevention devices for menshin bridges

ABSTRACT

This report deals with the development of anchor bar type falling-off prevention devices for Menshin bridges equipped with shock absorber (Laminated rubber). The effectiveness of the falling-off prevention devices with absorbers in reducing the relative displacement between the super and substructures of menshin bridges and the horizontalreaction force was demonstrated through numerical analysis on a bridge model. Clarifications were then made on the compression-reaction force properties of the falling-off prevention devices through element tests envolving static compresssion loading on laminated rubber with round steel bars (anchor bars).(AU)