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A platform for research: civil engineering, architecture and urbanism
JOINING STRUCTURE AND JOINING METHOD OF PRECAST CONCRETE BEAM MEMBERS
PROBLEM TO BE SOLVED: To omit largely reinforcement work and formwork construction in the field work of precast beam members.SOLUTION: In the joining structure, when joining a beam member A and a beam member B made of precast concrete, there are provided: a beam end joint portion 10 which is surrounded by a side surface plate 12 extending from both side surfaces of a rectangular cross section portion 11 of the beam member A and the end surface of the rectangular cross section portion 11, and in which a beam reinforcement 13 is projected from the rectangular cross section portion 11 in the recess 14 whose upper and lower surfaces are open to the vicinity of the tip end of the side surface plate 12, and the beam reinforcement 13 is inserted through the entire length of a mechanical joint 5; and a beam end joining portion 20 which is surrounded by a side surface plate 22 extending from both side surfaces of a rectangular cross section portion 21 of the beam member B arranged and joined linearly to the beam end of the beam member A and the end surface of the rectangular cross section 21, and in which a beam reinforcement with half length of the entire length of the mechanical joint 5 is projected from the rectangular cross section portion 21 in the recess 24 whose upper and lower surfaces are open. And furthermore, the beam end joint portion 10 and the beam end joining portion 20 are faced each other, the beam reinforcement 13 and the beam reinforcement 23 are joined by the mechanical joint 5, and joining concrete is cast in the recesses 14, 24 (space 3).SELECTED DRAWING: Figure 1
【課題】 プレキャスト梁部材の現場作業における鉄筋工事と型枠工事を大幅に省略する。【解決手段】 プレキャストコンクリート製の梁部材Ａと梁部材Ｂとを接合する際、梁部材Ａの矩形断面部１１の両側面から延在された側面板１２と矩形断面部１１の端面とで囲まれた梁上下面が開放された凹所１４内の矩形断面部１１から側面板１２の先端部近傍まで梁主筋１３を突出させ、梁主筋１３を機械式継手５の全長にわたり挿通させて梁端接合部１０と、梁部材Ａの梁端と直線状に配列され接合される梁部材Ｂの矩形断面部２１の両側面から延在された側面板２２と矩形断面部２１の端面とで囲まれた梁上下面が開放された凹所２４内の矩形断面部２１から機械式継手５の全長のおよそ１／２の長さの梁主筋を突出させて梁端接合部２０とを相対させ、機械式継手５で梁主筋１３と梁主筋２３とを接合する。さらに凹所１４，２４（空間３）内に接合部コンクリートを打設する。【選択図】 図１
JOINING STRUCTURE AND JOINING METHOD OF PRECAST CONCRETE BEAM MEMBERS
PROBLEM TO BE SOLVED: To omit largely reinforcement work and formwork construction in the field work of precast beam members.SOLUTION: In the joining structure, when joining a beam member A and a beam member B made of precast concrete, there are provided: a beam end joint portion 10 which is surrounded by a side surface plate 12 extending from both side surfaces of a rectangular cross section portion 11 of the beam member A and the end surface of the rectangular cross section portion 11, and in which a beam reinforcement 13 is projected from the rectangular cross section portion 11 in the recess 14 whose upper and lower surfaces are open to the vicinity of the tip end of the side surface plate 12, and the beam reinforcement 13 is inserted through the entire length of a mechanical joint 5; and a beam end joining portion 20 which is surrounded by a side surface plate 22 extending from both side surfaces of a rectangular cross section portion 21 of the beam member B arranged and joined linearly to the beam end of the beam member A and the end surface of the rectangular cross section 21, and in which a beam reinforcement with half length of the entire length of the mechanical joint 5 is projected from the rectangular cross section portion 21 in the recess 24 whose upper and lower surfaces are open. And furthermore, the beam end joint portion 10 and the beam end joining portion 20 are faced each other, the beam reinforcement 13 and the beam reinforcement 23 are joined by the mechanical joint 5, and joining concrete is cast in the recesses 14, 24 (space 3).SELECTED DRAWING: Figure 1
【課題】 プレキャスト梁部材の現場作業における鉄筋工事と型枠工事を大幅に省略する。【解決手段】 プレキャストコンクリート製の梁部材Ａと梁部材Ｂとを接合する際、梁部材Ａの矩形断面部１１の両側面から延在された側面板１２と矩形断面部１１の端面とで囲まれた梁上下面が開放された凹所１４内の矩形断面部１１から側面板１２の先端部近傍まで梁主筋１３を突出させ、梁主筋１３を機械式継手５の全長にわたり挿通させて梁端接合部１０と、梁部材Ａの梁端と直線状に配列され接合される梁部材Ｂの矩形断面部２１の両側面から延在された側面板２２と矩形断面部２１の端面とで囲まれた梁上下面が開放された凹所２４内の矩形断面部２１から機械式継手５の全長のおよそ１／２の長さの梁主筋を突出させて梁端接合部２０とを相対させ、機械式継手５で梁主筋１３と梁主筋２３とを接合する。さらに凹所１４，２４（空間３）内に接合部コンクリートを打設する。【選択図】 図１
JOINING STRUCTURE AND JOINING METHOD OF PRECAST CONCRETE BEAM MEMBERS
プレキャストコンクリート梁部材の接合構造および接合方法
SUZUKI HIDEYUKI (author) / FUJITA YASUKI (author) / TAKAHASHI SHOJI (author) / TAKAHASHI TAKAO (author)
2018-08-23
Patent
Electronic Resource
Japanese
METHOD FOR JOINING PRECAST CONCRETE MEMBERS AND JOINING STRUCTURE
| European Patent Office | 2019