Yoshikatsu SUGIYAMA, Kenji SAKAMOTO
We have developed a steel-encased reinforced concrete structure
to lighten the girder applied to the traverser turnout for high
speed in the superconducting MAGLEV system. Eddy currents and
loop currents may be induced in guideway steel structure by variable
magnetic fields when MAGLEV vehicles with superconducting magnets
move. Then the resistance to the movement of vehicle will be generated.
As a countermeasure, it will be effective to use a low-magnetic
steel and to isolate the steel joint coupling electrically. We
use austenitic stainless steel as parent metal and design the
isolated joint coupling using a high-strength bolt with low magnetism.
This is a report describing the process of developing a steel-encased
reinforced concrete girder.