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A platform for research: civil engineering, architecture and urbanism
JOINT STRUCTURE FOR PRECAST CONCRETE FLOOR SLAB
PROBLEM TO BE SOLVED: To provide a joint structure for a precast concrete floor slab capable of making a junction part shorter than an overlap joint structure, capable of making a floor slab thinner than a loop reinforcement joint structure and further capable of reducing a burden of reinforcement arrangement work on the job site.SOLUTION: An upper-stage displacement prevention member 16 comprises: an upper-stage shaft part which is joined to a distal end of an upper-stage joint reinforcement 12 in such a manner that central axes are substantially matched with each other; and an upper-stage lock part including an upper-stage inner surface extending obliquely downwards in a direction reverse to a direction of protrusion of the upper-stage joint reinforcement 12 to which the upper-stage displacement prevention member itself is joined, at an opposite side in the direction of protrusion of the upper-stage joint reinforcement 12. A lower-stage displacement prevention member 18 includes: a lower-stage shaft part which is joined to a distal end of a lower-stage joint reinforcement 14 in such a manner that central axes are substantially matched with each other; and a lower-stage lock part including a lower-stage inner surface extending obliquely upwards in a direction reverse to a direction of protrusion of the lower-stage joint reinforcement 14 to which the lower-stage displacement prevention member itself is joined, at an opposite side in the direction of protrusion of the lower-stage joint reinforcement 14.SELECTED DRAWING: Figure 1
【課題】重ね継ぎ手構造よりも接合部の長さを短くでき、かつ、ループ鉄筋継ぎ手構造よりも床版厚を薄くでき、さらに、現場での配筋作業の負担も少なくできるプレキャストコンクリート床版の継ぎ手構造を提供する。【解決手段】上段ずれ止め部材１６は、上段継ぎ手鉄筋１２の先端にお互いの中心軸が略一致するように接合された上段軸部と、自身が接合された上段継ぎ手鉄筋１２が突出する方向とは逆の方向に斜め下方に延びる上段内面を当該上段継ぎ手鉄筋１２の突出する方向とは逆の側に有する上段係止部と、を有してなり、下段ずれ止め部材１８は、下段継ぎ手鉄筋１４の先端にお互いの中心軸が略一致するように接合された下段軸部と、自身が接合された下段継ぎ手鉄筋１４が突出する方向とは逆の方向に斜め上方に延びる下段内面を当該下段継ぎ手鉄筋１４の突出する方向とは逆の側に有する下段係止部と、を有してなる。【選択図】図１
JOINT STRUCTURE FOR PRECAST CONCRETE FLOOR SLAB
PROBLEM TO BE SOLVED: To provide a joint structure for a precast concrete floor slab capable of making a junction part shorter than an overlap joint structure, capable of making a floor slab thinner than a loop reinforcement joint structure and further capable of reducing a burden of reinforcement arrangement work on the job site.SOLUTION: An upper-stage displacement prevention member 16 comprises: an upper-stage shaft part which is joined to a distal end of an upper-stage joint reinforcement 12 in such a manner that central axes are substantially matched with each other; and an upper-stage lock part including an upper-stage inner surface extending obliquely downwards in a direction reverse to a direction of protrusion of the upper-stage joint reinforcement 12 to which the upper-stage displacement prevention member itself is joined, at an opposite side in the direction of protrusion of the upper-stage joint reinforcement 12. A lower-stage displacement prevention member 18 includes: a lower-stage shaft part which is joined to a distal end of a lower-stage joint reinforcement 14 in such a manner that central axes are substantially matched with each other; and a lower-stage lock part including a lower-stage inner surface extending obliquely upwards in a direction reverse to a direction of protrusion of the lower-stage joint reinforcement 14 to which the lower-stage displacement prevention member itself is joined, at an opposite side in the direction of protrusion of the lower-stage joint reinforcement 14.SELECTED DRAWING: Figure 1
【課題】重ね継ぎ手構造よりも接合部の長さを短くでき、かつ、ループ鉄筋継ぎ手構造よりも床版厚を薄くでき、さらに、現場での配筋作業の負担も少なくできるプレキャストコンクリート床版の継ぎ手構造を提供する。【解決手段】上段ずれ止め部材１６は、上段継ぎ手鉄筋１２の先端にお互いの中心軸が略一致するように接合された上段軸部と、自身が接合された上段継ぎ手鉄筋１２が突出する方向とは逆の方向に斜め下方に延びる上段内面を当該上段継ぎ手鉄筋１２の突出する方向とは逆の側に有する上段係止部と、を有してなり、下段ずれ止め部材１８は、下段継ぎ手鉄筋１４の先端にお互いの中心軸が略一致するように接合された下段軸部と、自身が接合された下段継ぎ手鉄筋１４が突出する方向とは逆の方向に斜め上方に延びる下段内面を当該下段継ぎ手鉄筋１４の突出する方向とは逆の側に有する下段係止部と、を有してなる。【選択図】図１
JOINT STRUCTURE FOR PRECAST CONCRETE FLOOR SLAB
プレキャストコンクリート床版の継ぎ手構造
TANAKA HIROAKI (author) / NAKAYAMA ATSUO (author)
2018-03-01
Patent
Electronic Resource
Japanese
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