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1. 发明授权

US06655104B2 PC steel stranded wire connection structure and construction method thereof 失效
标题翻译： PC钢绞线连接结构及其施工方法
公开(公告)号：US06655104B2
公开(公告)日：2003-12-02
申请号：US09959561
申请日：2001-10-30
申请人： Tsutomu Kadotani , Yasuo Inokuma , Norio Terada , Hideaki Sakai , Toshikazu Minami , Jun Yamazaki , Yoshitaka Nishida
发明人： Tsutomu Kadotani , Yasuo Inokuma , Norio Terada , Hideaki Sakai , Toshikazu Minami , Jun Yamazaki , Yoshitaka Nishida
IPC分类号： B25G300
CPC分类号： E04C5/08 , E04C5/122 , E04C5/165 , Y10T403/472
摘要： A joint made between prestressing strands with a prestressing strand coupler is covered with a transparent coupler sheath having a retarded-hardening resin filling material injection opening and discharge opening provided in a tube wall thereof, and a resin filling material is injected into the transparent coupler sheath from the injection opening to fill the coupler sheath with the filling material. Thereafter, the whole outer peripheral portion of the prestressing strand joint, including the coupler sheath, is embedded with placed concrete. Tension is applied to the prestressing strands after the concrete has hardened and before the resin filling material hardens, thereby completing an excellent prestressing strand joint structure. According to the present invention, the filling condition of the resin filling material in the coupler sheath around the prestressing strand joint can readily be confirmed by visual observation. Therefore, the operation of filling the filling material can be carried out completely. Further, the wedges present in the prestressing strand coupler are allowed to properly bite into the prestressing strands in response to the prestressing strand tensioning operation performed before the filling material hardens. Thus, a superior joint structure is provided.
摘要翻译：用预应力线耦合器制成的预应力绞线之间的接头用透明的耦合器护套覆盖，所述透明耦合器护套在其壁壁中具有延迟硬化树脂填充材料注入开口和排出口，并将树脂填充材料注入透明耦合器套管从注射开口填充耦合器鞘与填充材料。此后，包括耦合器护套的预应力绞线接头的整个外周部分嵌入放置的混凝土。在混凝土硬化之后，树脂填充材料硬化之前，对预应力钢筋施加张力，从而完成优良的预应力股线接头结构。根据本发明，树脂填充材料在预应力周围的耦合器护套中的填充状态通过目视观察可以容易地确认线股关节。因此，填充材料的填充操作可以完全进行。此外，响应于在填充材料硬化之前进行的预应力钢绞线张紧操作，允许存在于预应力股联接器中的楔适当地咬入预应力股。因此，提供了优异的接头结构。

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