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    Reinforcing device for an element of prestressed concrete
    31.
    发明授权
    Reinforcing device for an element of prestressed concrete 失效
    预应力混凝土构件增强装置

    公开(公告)号：US3948010A

    公开(公告)日：1976-04-06

    申请号：US524942

    申请日：1974-11-18

    申请人： Roger Paul Sonneville

    发明人： Roger Paul Sonneville

    IPC分类号： B28B23/04 ,  E01B3/34 ,  E01B3/36 ,  E01B3/38 ,  E04C5/08

    CPC分类号： B28B23/043 ,  E01B3/34 ,  E01B3/36 ,  E01B3/38 ,  E04C5/08

    摘要： The invention relates to the technique of prestressed concrete and concerns a reinforcing device comprising a cylindrical metal tube at the ends of which are friction welded two plates or flanges defining radial support surfaces for bearing on the concrete. One of these plates constitutes an end wall against which abuts a metal core for putting the tube under tension. The other plate, which has a centre aperture, comprises means such as screw threading which co-operates with a bolt for achieving said tensioning in an effective and easy manner. Preferably, the tube has a section which varies along its longitudinal axis so as to afford an improved guide for the core and improve the characteristics of the reinforcement. A particularly advantageous application is in the manufacture of composite railway ties.

    摘要翻译： 本发明涉及预应力混凝土的技术，并且涉及一种加强装置，其包括圆柱形金属管，其末端是摩擦焊接的两个板或凸缘，其限定用于承载在混凝土上的径向支撑表面。 这些板中的一个构成端壁，靠近金属芯以使管处于张力。 具有中心孔的另一个板包括诸如螺纹螺纹的装置，其与用于以有效和容易的方式实现所述张紧的螺栓配合。 优选地，管具有沿其纵向轴线变化的部分，以便提供用于芯的改进的引导件并且改善加强件的特性。 特别有利的应用是复合铁路连接件的制造。