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    • 3. 发明专利
    • Precast concrete member, and manufacturing method therefor
    • 预制混凝土构件及其制造方法
    • JP2008069519A
    • 2008-03-27
    • JP2006247254
    • 2006-09-12
    • Ohbayashi Corp株式会社大林組
    • FUJIO NAOTOKANO TAKESUKEMASUDA YASUHIKOSUGIMOTO KUNIYOSHI
    • E04B1/58E04B1/21E04C5/10E04C5/18
    • PROBLEM TO BE SOLVED: To provide an inexpensively manufacturable PC member which is equipped with a hole allowing the insertion of a reinforcing bar etc., preventing the occurrence of a slip between concrete constituting the PC member, and internally injected grout.
      SOLUTION: This precast concrete member is equipped with a reinforcing bar insertion hole 13. The reinforcing bar, a prestressing steel wire, etc. are inserted into the insertion hole 13; the grout is infilled into a gap between the insertion hole 13 and the reinforcing bar, the prestressing steel wire or the like; and the infilled ground is hardened to be integrated with a front reinforcing bar, the prestressing steel wire, etc. In the precast concrete member, a protrusion 21 is provided on the inner surface of the insertion hole 13. The protrusion 21 is formed in such a shape as to be gradually narrower toward the center of the insertion hole 13. Additionally, a spiral annealing wire 22 is embedded in the state of surrounding the insertion hole 13.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种廉价制造的PC构件,其配备有允许插入钢筋等的孔,防止构成PC构件的混凝土之间的滑动和内部注入的浆料的发生。

      解决方案:该预制混凝土构件配备有钢筋插入孔13.将钢筋,预应力钢丝等插入插入孔13中, 灌浆填充到插入孔13和钢筋,预应力钢丝等之间的间隙中; 并且填充的地面被硬化以与前钢筋,预应力钢丝等一体化。在预制混凝土构件中,在插入孔13的内表面上设置突起21.突起21形成为 形状要朝着插入孔13的中心逐渐变窄。另外,螺旋退火线22被嵌入在围绕插入孔13的状态下。(C)2008,JPO&INPIT

    • 5. 发明专利
    • Method of filling grout, joint method of pc member, and joint structure of pc member
    • 填充GROUT的方法,PC会员的联合方法和PC会员的联合结构
    • JP2007255091A
    • 2007-10-04
    • JP2006081970
    • 2006-03-24
    • Ohbayashi CorpSumitomo Mitsui Construction Co Ltd三井住友建設株式会社株式会社大林組
    • MORIOKA TORUFUJIO NAOTOKANO TAKESUKESUGIMOTO KUNIYOSHITAMAOKI JUNKOMATSUMOTO KEIJIKANO YOSHIMATSUI KOICHIROKOSAKA HIDEYUKIHASUO KOICHI
    • E04B1/58E04B1/21E04B1/22E04G21/12
    • PROBLEM TO BE SOLVED: To provide a joint method of PC members by which grout can be filled efficiently upon construction of a PC column-beam structure.
      SOLUTION: When a lower PC column member 20 having sleeve joints 23 which are provided in a manner that insertion ports 24 for reinforcing bars are exposed on an upper surface of the member, a PC beam joint member 30 in which sheath pipes 32 are buried at the positions corresponding to main reinforcements of the column, and an upper PC column member 40 having the main reinforcements 42 arranged to protrude downward from a lower surface of the member are joined together, the PC beam joint member 30 is erected on an upper part of the lower PC column member 20, and the upper PC column member 40 is erected on the upper part of the PC beam joint member 30 so that the main reinforcements 42 may penetrate the sheath pipes 32 and front ends of the main reinforcements 42 may be inserted into the sleeve joints 23. A peripheral part of a lower joint part between the PC beam joint member 30 and the lower PC column member 20 is sealed, and the grout is continuously filled in the sleeve joints 23 and the lower joint part by the intermediary of the grout distributing device 11.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种PC构件的联合方法,通过在PC柱梁结构的构造时可以有效地填充灌浆。 解决方案:当具有套筒接头23的下部PC柱构件20以使得用于钢筋的插入端口24暴露在构件的上表面上的方式设置时,PC梁接头构件30,其中鞘管32 被埋在与柱的主加强件相对应的位置,并且具有从构件的下表面向下突出的主加强件42的上PC柱构件40接合在一起,PC梁接头构件30竖立在 下PC柱构件20的上部和上PC柱构件40竖立在PC梁接头构件30的上部上,使得主加强件42可以穿透护套管32和主加强件42的前端 可以插入到套筒接头23中。PC梁接头构件30和下PC柱构件20之间的下接合部分的周边部分被密封,并且将浆料连续地填充在套筒接头23中 和下部接合部分。(C)2008年,JPO和INPIT