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1. 发明授权

US5254190A Tendons for prestressed concrete structures and method of using such tendons 失效
标题翻译：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
申请人： Makoto Kurauchi , Kiyoshi Hayasaki , Toshikazu Minami , Mutsuhiko Ohnishi
发明人： Makoto Kurauchi , Kiyoshi Hayasaki , Toshikazu Minami , Mutsuhiko Ohnishi
IPC分类号： B29C47/02 , D07B7/14 , E04C5/08 , B32B31/16
CPC分类号： D07B5/005 , B29C47/0014 , B29C47/0033 , B29C47/02 , D07B1/162 , D07B7/145 , E04C5/08 , D07B2501/2023
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。

2. 发明授权

US4929650A Coating material for tendon for prestressed concrete 失效
标题翻译：预应力混凝土腱涂层材料
公开(公告)号：US4929650A
公开(公告)日：1990-05-29
申请号：US223588
申请日：1988-07-25
申请人： Makoto Kurauchi , Michio Hashimoto , Kiyoshi Hayasaki , Toshikazu Minami , Mutsuhiko Ohnishi , Yohei Suzuki
发明人： Makoto Kurauchi , Michio Hashimoto , Kiyoshi Hayasaki , Toshikazu Minami , Mutsuhiko Ohnishi , Yohei Suzuki
IPC分类号： H01L21/66 , C08G59/18 , C08G59/40 , C09D5/00 , C09D5/08 , C09D163/00 , C09J163/00 , E04C5/08 , E04G21/12 , G01R31/26 , G01R31/28 , H01L21/8249 , H01L27/06 , H03K19/00
CPC分类号： C08G59/18 , C08G59/40 , C09D163/00 , E04G21/12
摘要： A coating material for a tendon for prestressed concrete includes a curing composition, the curing time of which is so controlled that the composition is held in an uncured fluid state for a predetermined time after the concrete hardens. After the predetermined time passes, the composition cures. By coating a tendon for prestressed concrete with the coating material having such properties, an antirust effect of the tendon, an improved adhering force of the tendon to the concrete and a decreased cost of manufacturing prestressed concrete can be obtained.
摘要翻译：一种用于预应力混凝土的腱用涂料，包括固化组合物，其固化时间受到如此控制，使得组合物在混凝土硬化后预定的时间保持在未固化的流体状态。在预定时间过去之后，组合物固化以保护腱免受腐蚀并将其粘附到混凝土。本发明还包括使用这种涂层材料制造预应力混凝土的方法。

3. 发明授权

US5149385A Tendons for prestressed concrete structures and method of using such tendons 失效
标题翻译：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
申请人： Makoto Kurauchi , Kiyoshi Hayasaki , Toshikazu Minami , Mutsuhiko Ohnishi
发明人： Makoto Kurauchi , Kiyoshi Hayasaki , Toshikazu Minami , Mutsuhiko Ohnishi
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.

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