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PILE HEAD SEMI-RIGID CONNECTION STRUCTURE OF CAST-IN-SITE CONCRETE PILE
PROBLEM TO BE SOLVED: To provide a pile head semi-rigid connection structure that can easily secure further sufficient shear capacity, even if a tension load acts on the pile head semi-rigid connection structure, at the same time when preferably reducing flexural rigidity of the pile head.SOLUTION: Two or more anchoring reinforcement 24 are arranged in the peripheral area of a small diameter joint 18, and one end thereof is swallowed in concrete of a pile head and the other end is swallowed in the concrete of an RC structure foundation 16, and thereby the RC structure foundation is connected to the pile head. Also, a central steel material 26 is surrounded and disposed by two or more anchoring reinforcements 24 in the central area of the small diameter joint 18, and one end thereof is swallowed in concrete of the pile head and the other end is swallowed in the concrete of the RC structure foundation, and thereby the RC structure foundation is connected to the pile head. Furthermore, the concrete of the pile head surrounding one end of the central steel material 26 is restrained by an intensive reinforcing bar 28.SELECTED DRAWING: Figure 1
【課題】杭頭半剛接合構造において、杭頭の曲げ剛性を好適に低下させつつ、それと同時に、当該杭頭半剛接合構造に引張荷重が作用する場合であってもなお十分なせん断耐力を容易に確保できるようにする。【解決手段】複数本の定着筋２４が小径接合部１８の周縁領域に列設されており、それらの一端が杭頭のコンクリートに飲み込まれ他端がＲＣ造基礎１６のコンクリートに飲み込まれることで、杭頭とＲＣ造基礎とを接合している。また中央鋼材２６が小径接合部１８の中央領域に複数本２４の定着筋に囲繞されて配置されており、その一端が杭頭のコンクリートに飲み込まれ他端がＲＣ造基礎のコンクリートに飲み込まれることで、杭頭とＲＣ造基礎とを接合している。更に集中補強筋２８によって、中央鋼材２６の一端を包持している杭頭のコンクリートを拘束するようにした。【選択図】図１
PILE HEAD SEMI-RIGID CONNECTION STRUCTURE OF CAST-IN-SITE CONCRETE PILE
PROBLEM TO BE SOLVED: To provide a pile head semi-rigid connection structure that can easily secure further sufficient shear capacity, even if a tension load acts on the pile head semi-rigid connection structure, at the same time when preferably reducing flexural rigidity of the pile head.SOLUTION: Two or more anchoring reinforcement 24 are arranged in the peripheral area of a small diameter joint 18, and one end thereof is swallowed in concrete of a pile head and the other end is swallowed in the concrete of an RC structure foundation 16, and thereby the RC structure foundation is connected to the pile head. Also, a central steel material 26 is surrounded and disposed by two or more anchoring reinforcements 24 in the central area of the small diameter joint 18, and one end thereof is swallowed in concrete of the pile head and the other end is swallowed in the concrete of the RC structure foundation, and thereby the RC structure foundation is connected to the pile head. Furthermore, the concrete of the pile head surrounding one end of the central steel material 26 is restrained by an intensive reinforcing bar 28.SELECTED DRAWING: Figure 1
【課題】杭頭半剛接合構造において、杭頭の曲げ剛性を好適に低下させつつ、それと同時に、当該杭頭半剛接合構造に引張荷重が作用する場合であってもなお十分なせん断耐力を容易に確保できるようにする。【解決手段】複数本の定着筋２４が小径接合部１８の周縁領域に列設されており、それらの一端が杭頭のコンクリートに飲み込まれ他端がＲＣ造基礎１６のコンクリートに飲み込まれることで、杭頭とＲＣ造基礎とを接合している。また中央鋼材２６が小径接合部１８の中央領域に複数本２４の定着筋に囲繞されて配置されており、その一端が杭頭のコンクリートに飲み込まれ他端がＲＣ造基礎のコンクリートに飲み込まれることで、杭頭とＲＣ造基礎とを接合している。更に集中補強筋２８によって、中央鋼材２６の一端を包持している杭頭のコンクリートを拘束するようにした。【選択図】図１
PILE HEAD SEMI-RIGID CONNECTION STRUCTURE OF CAST-IN-SITE CONCRETE PILE
場所打ちコンクリート杭の杭頭半剛接合構造
NAKAGAWA TARO (author) / MARU TAKAHIRO (author) / KOBAYASHI KATSUMI (author) / SASAKI SATOSHI (author) / TAKAMORI NAOKI (author) / KINEMORI FUMIHIRO (author) / MISHIMA SHINYA (author) / IMAEDA TAKEHARU (author) / EBIKI KIYOTO (author)
2016-05-09
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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