Tendons for prestressed concrete structures and method of using such
tendons
    2.
    发明授权
    Tendons for prestressed concrete structures and method of using such tendons 失效
    用于预应力混凝土结构的腱和使用这种腱的方法

    公开(公告)号:US5254190A

    公开(公告)日:1993-10-19

    申请号:US705062

    申请日:1991-05-23

    摘要: A tendon for prestressed concrete structure comprises a core member such as a steel wire for prestressed concrete structures, a steel strand for prestressed concrete structures or a steel bar for prestressed concrete structures, and an unset bonding material coating the core structure in a predetermined thickness, having a specific setting time determined by selectively determining the respective contents of the ingredient of the bonding material and capable of setting at an ordinary temperature. The tendon is arranged in a desired arrangement for forming a prestressed concrete structure, concrete is placed so as to bury the tendons therein, and then the tendons are tensioned and fixed after the strength of the deposited concrete has increased to a degree to permit tensioning the tendons and before the unset bonding material sets. Thus, the unset bonding material sets after the tendons have been tensioned and fixed to bond the tendons firmly to the prestressed concrete structure.

    摘要翻译: 用于预应力混凝土结构的腱包括用于预应力混凝土结构的钢丝,用于预应力混凝土结构的钢绞线或用于预应力混凝土结构的钢筋的芯构件和以预定厚度涂覆芯结构的未固定接合材料, 通过选择性地确定接合材料的成分的各个内容物并能够在常温下设定而确定具体的凝固时间。 将钢筋布置成用于形成预应力混凝土结构的所需布置,将混凝土放置以便将钢筋埋入其中,然后在钢筋混凝土的强度增加到一定程度以后将钢筋张紧并固定,以允许张紧 腱和未固定粘合材料组之前。 因此,在钢筋已被张紧和固定之后,未固定的粘合材料固定,以将钢筋牢固地粘结到预应力混凝土结构上。

    Tendons for prestressed concrete structures and method of using such
tendons
    3.
    发明授权
    Tendons for prestressed concrete structures and method of using such tendons 失效
    用于预制混凝土结构的方法和使用这种方法的方法

    公开(公告)号:US5149385A

    公开(公告)日:1992-09-22

    申请号:US705060

    申请日:1991-05-23

    IPC分类号: E04G21/12 E04C5/08

    CPC分类号: E04C5/08

    摘要: A tendon for prestressed concrete structure comprises a core member such as a steel wire for prestressed concrete structures, a steel strand for prestressed concrete structures or a steel bar for prestressed concrete structures, and an unset bonding material coating the core structure in a predetermined thickness, having a specific setting time determined by selectively determining the respective contents of the ingredient of the bonding material and capable of setting at an ordinary temperature. The tendon is arranged in a desired arrangement for forming a prestressed concrete structure, concrete is placed so as to bury the tendons therein, and then the tendons are tensioned and fixed after the strength of the deposited concrete has increased to a degree to permit tensioning the tendons and before the unset bonding material sets. Thus, the unset bonding material sets after the tendons have been tensioned and fixed to bond the tendons firmly to the prestressed concrete structure.