抄録
Fatigue damage has been frequently observed at a connection between a track-beam and a cross-beam in welded steel girders of straddled-type monorail structure. This paper addressed FE analysis for appropriate maintenance of the straddled-type monorail. Fine meshed FE analysis was conducted to clarify the behavior of fatigue cracks due to the difference between a rigid-connection with a pin-connection, and to confirm the effect of moving manners of the pin-connection, span lengths, cants. Based on the parameter studies on FE analysis, we proposed the retrofitting method “Trapezoid Shaped Connection”.
