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    • 1. 发明专利
    • Joint structure of precast concrete member
    • 预制混凝土构件的联合结构
    • JP2008008120A
    • 2008-01-17
    • JP2006182582
    • 2006-06-30
    • National Institute For Materials ScienceTakenaka Komuten Co Ltd株式会社竹中工務店独立行政法人物質・材料研究機構
    • SUGATA MASAHIROOGAWA TAKATOSHIIKEO YOSAKUKUSHIBE ATSUMICHISAWAGUCHI TAKAHIROKIKUCHI BUHIJIOGAWA KAZUYUKI
    • E04B1/58E04C5/02
    • PROBLEM TO BE SOLVED: To provide a joint structure of a precast concrete member having large resistance force to tensile force by twining a large number of linear tension elements formed of an iron-based shape memory alloy, around a concrete portion around joints to enhance anchoring force.
      SOLUTION: The joint structure of the precast concrete member is formed by projecting a plurality of iron joints from the facing surfaces of two joined members and anchoring each joint to concrete placed between the facing surfaces. The large number of linear tension elements 12 made of the iron-based memory alloy provided to twine around the concrete portion around the joints are provided as at least a part of the plurality of joints or separately from the joints. Prestress is introduced by the contraction of the tension elements, and the respective tension elements are oriented so that at least a part of the prestress is applied as side pressure to the side face of the joints 8 to enhance the anchoring force of the joints to the concrete.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:通过将由铁基形状记忆合金形成的大量线性张力元件缠绕在关节周围的混凝土部分上来提供具有大的抗力的预制混凝土构件的接合结构 以增强锚固力。 解决方案:预制混凝土构件的接合结构通过从两个接合构件的相对表面突出多个铁接头并将每个接头锚固到位于相对表面之间的混凝土而形成。 提供用于围绕接头围绕混凝土部分缠绕的铁基记忆合金制成的大量线性拉力元件12作为多个接头的至少一部分或与接头分开设置。 通过拉伸元件的收缩引入预应力,并且相应的张力元件被定向成使得预应力的至少一部分作为侧压被施加到接头8的侧面,以增强接头的锚定力 具体。 版权所有(C)2008,JPO&INPIT
    • 6. 发明专利
    • WORKING AND HEAT-TREATMENT METHOD FOR NbC-ADDED Fe-Mn-Si SHAPE MEMORY ALLOY
    • NbC添加Fe-Mn-Si形状记忆合金的工作和热处理方法
    • JP2006193792A
    • 2006-07-27
    • JP2005007449
    • 2005-01-14
    • National Institute For Materials Science独立行政法人物質・材料研究機構
    • SAWAGUCHI TAKAHIROKIKUCHI TAKEHIKOOGAWA KAZUYUKIKAJIWARA SETSUO
    • C21D8/00C22C38/00C22C38/12C22C38/58
    • PROBLEM TO BE SOLVED: To provide a heat treatment method of only one step operation by solving the problem that the heat treatment is performed with two step operations with which Nb and C elements are added in a little quantity in an Fe-Mn-Si base shape-memory alloy and a suitable aging-heat treatment is applied to precipitate fine NbC carbides and it is succeeded that the alloy displaying the sufficient good-conditional shape-memorial effect, is produced without performing troublesome training working operation. SOLUTION: This heat treatment method, that is in the working and the heat treatment method to the Fe-Mn-Si shape memory alloy adding Nb and C, the heating-aging treatment is applied to this alloy to precipitate the NbC carbide and successively, before lowering the temperature of the alloy under remaining heat-state, the alloy is worked at 5-70% and thus, the shape-memorial characteristic is displayed. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了通过解决在Fe-Mn中少量添加Nb和C元素的两步操作进行热处理的问题来提供仅一步操作的热处理方法 采用-Si基形记忆合金和合适的时效热处理,使细小的NbC碳化物析出,从而在没有进行繁琐的训练工作的情况下,制作出具有充分条件的形状记忆效果的合金。

      解决方案:该热处理方法,即在添加Nb和C的Fe-Mn-Si形状记忆合金的加工和热处理方法中,对该合金进行加热时效处理以使NbC碳化物析出 然后在剩余热状态下降低合金的温度之前,合金的加工量为5-70%,从而显示了形状特征。 版权所有(C)2006,JPO&NCIPI