To provide a construction method for an elevated structure, achieving inexpensive and quick construction not being an obstacle to a railroad and a road on the ground in a simple process and constitution.
This construction method for an elevated bridge includes: a construction process S10 for an initial elevated bridge as the first work area right above a railroad line 38; an extension construction process S20 for an elevated bridge by repeating a construction process S21 for a temporary pile using a crane pile driver 20 loaded on the initial elevated bridge 46, and a floor slab erection process S22 for erecting a beam panel 42 and a lining plate 44 on the constructed temporary pile 50, while moving the crane type pile driver 20; a final pile driving process S30 for driving a final pile 34 from above the constructed elevated bridge 56; a final pole changingly receiving process S40 for erecting a final pole 36 in the final pile 34 to change with the temporary pile 50; a temporary pile removable process S50 for removing the temporary pile 50; and a floor slab finishing process S60 for laying a final floor slab 62.
TSUJI NATSUKO
TONO MITSUO
SAKAMOTO MASAAKI
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