Recyclable H-shaped steel, supporting structure and recovery method of H-shaped steel

The invention discloses recoverable H-shaped steel, a supporting structure and a recovery method of the H-shaped steel. The recoverable H-shaped steel comprises an H-shaped steel part which is provided with a first flange, a second flange and a web plate located between the first flange and the second flange, wherein the first flange and the second flange are parallel to each other; a demolding coating which covers the outer surface of the steel part before recovery and is separated from the outer surface of the steel part during recovery; pulling hole plugs arranged on the web plate in pairs at certain intervals in the direction from the top end of the web plate to the bottom end of the web plate; and a bottom box piece which is arranged at the bottom end of the web plate and mounted at the bottom end of the web plate through a bolt. 本发明公开了可回收H型钢、支护结构及H型钢的回收方法，该可回收H型钢包括：型钢件，呈H形并具有相互平行的第一翼缘和第二翼缘、以及位于所述第一翼缘和所述第二翼缘之间的腹板；脱模涂层，在回收之前覆盖在所述型钢件的外表面，并在回收时从所述型钢件的外表面上脱离；起拔孔堵，其沿着从所述腹板的顶端到底端的方向上、按照一定间隔成对地设置在所述腹板上；以及底盒件，其设