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    Meshwork reinforced and pre-stressed concrete member, method and apparatus for making same
    1.
    发明公开
    Meshwork reinforced and pre-stressed concrete member, method and apparatus for making same 失效
    Vorgespanntes Betonelement mitGitterverstärkung，Verfahren und Apparatfürseine Herstellung。

    公开(公告)号：EP0297006A1

    公开(公告)日：1988-12-28

    申请号：EP88420224.3

    申请日：1988-06-27

    申请人： SHIMIZU CONSTRUCTION Co. LTD. ,  ASAHI GLASS MATEX CO., LTD.

    发明人： Sekijima, Kenzo ,  Kitagawa, Seiho

    IPC分类号： E04C5/07 ,  B28B23/00

    CPC分类号： B28B23/024 ,  B28B23/00 ,  B28B23/0006 ,  B28B23/16 ,  E04C5/07

    摘要： A pre-stressed concrete member (A) which is mainly composed of (a) first reinforcement members (2a) including first fiber strands (3) bound together and extending along a first direction; (b) a second reinforcement member (2b) including second fiber strands (3) bound together, extending along a second direction perpendicular to the first direction, the first reinforcement members and the second reinforcement member connected to each other at their intersections (6) so as to form a meshwork (2) thereby, and at least one of the first members and the second member being pre-tensed; (c) concrete body (1) embedding therein the first reinforcement members and the second reinforcement member.
    There is also provided by the present invention a method for fabricating a pre-stressed concrete member which is mainly composed of the steps of: (a) stretching at least one first fiber means (3a) impregnated with a resin material (4) in a first direction between first and second opposing extremities; (b) stretching at least one second fiber means (3b) impregnated with a resin material in a second direction between third and fourth opposing extremities, the second direction being perpendicular to the first direction; (c) embedding at least one of opposing extremities in respective opposing anchoring means (21); (d) providing mold means (30) so that at least an intermediate portion of the first string and an intermediate portion of the second string are enclosed thereby; (e) tensing at least one of the first fiber means and the second fiber means so as to give a pre-tension force thereto; and (f) molding concrete milk in the mold means so that the intermediate portions of the first string and the second string are embedded therein.
    Further, there is also provided by the present invention apparatus for fabricating a pre-tensed concrete member which is composed of (a) mold means (30) having a plurality of apertures for passing fiber means therethrough; (b) tensing means (35-37) for tensing the fiber means in a first direction so as to give the fiber means a pre-tension, the tensing means being disposed outside the mold means on opposite sides thereof; and (c) holder means for holding the fiber means to be stretched in a second direction perpendicular to the first direction, the holder means being disposed outside the mold means on opposite sides thereof movable along the mold means.

    摘要翻译： 一种预应力混凝土构件（A），其主要由（a）包括第一纤维束（3）的第一加强构件（2a）组合并沿着第一方向延伸; （b）包括第二纤维束（3）的第二加强构件（2b），所述第二纤维束（3）结合在一起，沿着垂直于所述第一方向的第二方向延伸，所述第一加强构件和所述第二加强构件在其交叉点（6）处彼此连接， 从而形成网状物（2），并且所述第一构件和所述第二构件中的至少一个被预张紧; （c）混凝土体（1）嵌入第一加强构件和第二加强构件。 本发明还提供一种制造预应力混凝土构件的方法，其主要包括以下步骤：（a）将至少一个浸有树脂材料（4）的第一纤维装置（3a）拉伸到 第一和第二相对末端之间的第一方向; （b）在第三和第四相对末端之间沿第二方向拉伸浸渍有树脂材料的至少一个第二纤维装置（3b），所述第二方向垂直于所述第一方向; （c）在相应的相对的锚定装置（21）中嵌入至少一个相对的末端; （d）提供模具装置（30），使得第一串的至少中间部分和第二串的中间部分被封闭; （e）拉紧所述第一纤维装置和所述第二纤维装置中的至少一个，以对其施加预拉力; 和（f）在模具装置中模制混凝土牛奶，使得第一串和第二串的中间部分嵌入其中。 此外，本发明还提供了一种用于制造预张力混凝土构件的装置，该装置由（a）具有多个孔的模具装置（30）组成，所述多个孔用于使纤维装置通过; （b）用于在第一方向上拉紧纤维装置的拉紧装置（35-37），以使纤维装置预拉伸，拉紧装置设置在模具装置的相对侧上; 和（c）保持装置，用于保持沿与第一方向垂直的第二方向拉伸的纤维装置，保持装置设置在模具装置外侧，可沿模具装置移动。