A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
STEEL PIPE CORRECTION METHOD, STEEL PIPE JOINING METHOD, AND SHAPE HOLDING TOOL
PROBLEM TO BE SOLVED: To provide a method for correcting and joining steel pipes deformed to be elliptical or the like without any irregularity at a construction site.SOLUTION: According to this method for joining steel pipes so as not to generate irregularity when both or one of two upper and lower steel pipes to be joined is deformed, an external force application device 1 provided with a hydraulic jack is installed inside the deformed steel pipe 8, and an external force is applied to the inner peripheral surface of the steel pipe 8 by the external force application device 1 so as to be close to a circular shape. In the temporarily corrected state of the sectional shape of the steep pipe 8 to be roughly circular, a shape holding band 3 for holding the shape of the steel pipe 8 (temporarily corrected shape) is fitted so as to be fastened to the outer peripheral surface of the steel pipe 8. The shape holding band 3 is fitted in such a manner that a bent surface having a roughly circular curvature is formed inside, and the bent surface abuts against the outer peripheral surface of the steel pipe 8. Then, in the shape held state of the steel pipe 8 by the shape holding band 3, the steep pile (lower steel pipe) is jointed to the other steel pile (upper steel pipe).SELECTED DRAWING: Figure 1A
【課題】楕円形等に変形した鋼管を施工現場で矯正して目違いなく接合できる方法を提供する。【解決手段】接合すべき上下２本の鋼管の両方または一方が変形している場合に、目違いが生じないように鋼管を接合する方法において、変形した鋼管８の内側に、油圧式ジャッキを具備する外力印加装置１を設置し、円形に近づくように当該外力印加装置１によって鋼管８の内周面に対し外力を加える。そして、その外力によって鋼管８の断面形状が略円形に仮矯正された状態で、鋼管８の形状を（仮矯正された形状に）保持するための形状保持バンド３を鋼管８の外周面に対して締め付けるように取り付ける。形状保持バンド３は、略円形の曲率を有する湾曲面が内側に形成され、前記湾曲面が鋼管８の外周面に当接するように取り付けられる。そして、形状保持バンド３によって鋼管８の形状が保持された状態で、当該鋼管（下側の鋼管）を他方の鋼管（上側の鋼管）に接合する。【選択図】図１Ａ
STEEL PIPE CORRECTION METHOD, STEEL PIPE JOINING METHOD, AND SHAPE HOLDING TOOL
PROBLEM TO BE SOLVED: To provide a method for correcting and joining steel pipes deformed to be elliptical or the like without any irregularity at a construction site.SOLUTION: According to this method for joining steel pipes so as not to generate irregularity when both or one of two upper and lower steel pipes to be joined is deformed, an external force application device 1 provided with a hydraulic jack is installed inside the deformed steel pipe 8, and an external force is applied to the inner peripheral surface of the steel pipe 8 by the external force application device 1 so as to be close to a circular shape. In the temporarily corrected state of the sectional shape of the steep pipe 8 to be roughly circular, a shape holding band 3 for holding the shape of the steel pipe 8 (temporarily corrected shape) is fitted so as to be fastened to the outer peripheral surface of the steel pipe 8. The shape holding band 3 is fitted in such a manner that a bent surface having a roughly circular curvature is formed inside, and the bent surface abuts against the outer peripheral surface of the steel pipe 8. Then, in the shape held state of the steel pipe 8 by the shape holding band 3, the steep pile (lower steel pipe) is jointed to the other steel pile (upper steel pipe).SELECTED DRAWING: Figure 1A
【課題】楕円形等に変形した鋼管を施工現場で矯正して目違いなく接合できる方法を提供する。【解決手段】接合すべき上下２本の鋼管の両方または一方が変形している場合に、目違いが生じないように鋼管を接合する方法において、変形した鋼管８の内側に、油圧式ジャッキを具備する外力印加装置１を設置し、円形に近づくように当該外力印加装置１によって鋼管８の内周面に対し外力を加える。そして、その外力によって鋼管８の断面形状が略円形に仮矯正された状態で、鋼管８の形状を（仮矯正された形状に）保持するための形状保持バンド３を鋼管８の外周面に対して締め付けるように取り付ける。形状保持バンド３は、略円形の曲率を有する湾曲面が内側に形成され、前記湾曲面が鋼管８の外周面に当接するように取り付けられる。そして、形状保持バンド３によって鋼管８の形状が保持された状態で、当該鋼管（下側の鋼管）を他方の鋼管（上側の鋼管）に接合する。【選択図】図１Ａ
STEEL PIPE CORRECTION METHOD, STEEL PIPE JOINING METHOD, AND SHAPE HOLDING TOOL
鋼管の矯正方法、鋼管の接合方法、形状保持器具
YOKOYAMA HIROSUKE (author)
2017-05-18
Patent
Electronic Resource
Japanese
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