鋼 I 桁下フランジ連結板取替えのためのウェブバイパス工法の適用範囲およびバイパス部材の形状に関する解析的検討

抄録

In the case of replacing the splice plate against corrosion damage of the steel girder joint part, there is a method of installing an attaching additional device and replacing the corrosion damaged portion of the girder with a new member. Previous research has revealed that the web bypass method, in which the bypass device is bolted to the web, is superior in workability and stress transmission. In this study, we focused on the replacement of lower splice plate, analyzed it using the steel I girder shape and the shape of the web bypass device as parameters, and examines the applicable range of the web bypass method and the appropriate geometrical configuration of the web bypass device.