CONNECTION STRUCTURE FOR TUBING AND CONNECTION METHOD FOR TUBING

• Main Authors: ASAI HIDEKATSU, YONEZAWA KENJI, SUZUI YASUMASA
• Format: Patent
• Language: English; Japanese
• Published: 12.03.2015
• Subjects: BUILDING; CEILINGS; FIXED CONSTRUCTIONS; FLOORS; GENERAL BUILDING CONSTRUCTIONS; INSULATION OR OTHER PROTECTION OF BUILDINGS; ROOFS; WALLS, e.g. PARTITIONS

PROBLEM TO BE SOLVED: To enhance transmission ability of compressive axial force between a pair of vertically adjacent tubing while connecting the pair of tubing by filling a cement-based composition into a part of the inside of the tubing.SOLUTION: There is provided a connection structure for tubing that connects the tubing together vertically. Lower end of the upper tubing out of the pair of tubing adjoining each other vertically and an upper end of the lower tubing do not abut on each other, the joint of the pair of tubing is exposed over the entire periphery of the tubing, and an inner tubing straddling the joint is provided in the pair of tubing. A first projection part is provided on an outer peripheral surface of the inner tubing, a second projection part is provided on an inner peripheral surface of the upper tubing above the first projection part, and a third projection part is provided on an inner peripheral surface of the lower tubing and below the first projection part. The inside of the pair of tubing is filled with a cement-based composition at least within the range from a position above the second projection to a position below the third projection. 【課題】セメント系組成物を充填することにより上下方向に隣り合う一対の管材を連結しつつ、一対の管材間における圧縮軸力の伝達性を高めること。【解決手段】管材同士を上下方向に連結する管材の連結構造であって、上下方向に隣り合う一対の管材のうちの上側の管材の下端と下側の管材の上端とが当接せず、前記一対の管材の継ぎ目が前記管材の全周に亘って露出し、前記一対の管材の内部には前記継ぎ目を跨ぐ内挿管材が設けられ、前記内挿管材の外周面には、第１の突起部が設けられ、前記上側の管材の内周面には、前記第１の突起部よりも上側の位置に第２の突起部が設けられ、前記下側の管材の内周面には、前記第１の突起部よりも下側の位置に第３の突起部が設けられ、前記一対の管材の内部のうち、少なくとも、前記第２の突起部よりも上側の位置から前記第３の突起部よりも下側の位置までの範囲が、セメント系組成物で充填されている、ことを特徴とする管材の連結構造である。【選択図】図２