To provide a gas turbine connecting a gas supply pipe with a turbine inlet head and to provide a novel supporting structural body capable of supporting a casing to prevent deformation of the turbine casing and pulling out the turbine when performing maintenance in a piping structure in which pressure load acts on a casing nozzle part by pressure in the pipe.
This supporting structural body 12 is fixed to an internal wall 11 opposing to the pipe 3 for supplying turbine working fluid to a turbine inlet header 1 to support the turbine casing in a turbine vessel storing the turbine casing. Bellows 14 abutting on a pad 10 provided on an external wall 9 of the turbine casing are provided at a tip of a supporting column 13 fixed to the internal wall 11 of the turbine vessel. The bellows 14 are provided with a vent pipe 16 for venting with the turbine working fluid supply pipe 3 and are driven by working fluid to support the turbine casing.
TOHOKU ELECTRIC POWER CO
TOKYO ELECTRIC POWER CO
CHUBU ELECTRIC POWER
HOKURIKU ELECTRIC POWER
KANSAI ELECTRIC POWER CO
CHUGOKU ELECTRIC POWER
KYUSHU ELECTRIC POWER
ELECTRIC POWER DEV CO
JAPAN ATOMIC POWER
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