公开(公告)号：US5254190A

公开(公告)日：1993-10-19

申请号：US705062

申请日：1991-05-23

Applicant: Makoto Kurauchi ,  Kiyoshi Hayasaki ,  Toshikazu Minami ,  Mutsuhiko Ohnishi

Inventor： Makoto Kurauchi ,  Kiyoshi Hayasaki ,  Toshikazu Minami ,  Mutsuhiko Ohnishi

IPC: B29C47/02 ,  D07B7/14 ,  E04C5/08 ,  B32B31/16

CPC classification number: D07B5/005 ,  B29C47/0014 ,  B29C47/0033 ,  B29C47/02 ,  D07B1/162 ,  D07B7/145 ,  E04C5/08 ,  D07B2501/2023

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US4929650A

公开(公告)日：1990-05-29

申请号：US223588

申请日：1988-07-25

Applicant: Makoto Kurauchi ,  Michio Hashimoto ,  Kiyoshi Hayasaki ,  Toshikazu Minami ,  Mutsuhiko Ohnishi ,  Yohei Suzuki

Inventor： Makoto Kurauchi ,  Michio Hashimoto ,  Kiyoshi Hayasaki ,  Toshikazu Minami ,  Mutsuhiko Ohnishi ,  Yohei Suzuki

IPC: 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 classification number: C08G59/18 ,  C08G59/40 ,  C09D163/00 ,  E04G21/12

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US5149385A

公开(公告)日：1992-09-22

申请号：US705060

申请日：1991-05-23

Applicant: Makoto Kurauchi ,  Kiyoshi Hayasaki ,  Toshikazu Minami ,  Mutsuhiko Ohnishi

Inventor： Makoto Kurauchi ,  Kiyoshi Hayasaki ,  Toshikazu Minami ,  Mutsuhiko Ohnishi

IPC: E04G21/12 ,  E04C5/08

CPC classification number: E04C5/08

Abstract: 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.

公开(公告)号：US4590724A

公开(公告)日：1986-05-27

申请号：US489345

申请日：1983-04-28

Applicant: Makoto Kurauchi ,  Takeshi Kobayashi ,  Masakazu Izumi ,  Jiro Aota

Inventor： Makoto Kurauchi ,  Takeshi Kobayashi ,  Masakazu Izumi ,  Jiro Aota

IPC: E04C5/12 ,  E04C3/10

CPC classification number: E04C5/125

Abstract: An anchorage for PC wire strands, anchorage having an enlarged head portion formed by heading a terminal end of a PC wire strand, and an anchoring member held in pressure contact with a portion of the PC wire strand in a position near the terminal end and having a side end held in close contact with the enlarged head portion, the anchoring member being so formed as to have a length corresponding to one third or one half of the length required for anchoring the PC wire strand by the anchoring member alone.

Abstract translation: 用于PC线股的锚固件，具有通过引导PC线股的末端形成的扩大的头部的锚固件以及在靠近终端的位置处与PC线股的一部分压力接触的锚定部件，并且具有 一个侧端与扩大的头部保持紧密接触，该锚定构件形成为具有对应于单独锚定构件锚固PC线束所需长度的三分之一或一半的长度。