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1. 发明授权

US06892410B2 Reinforcement structure of truss bridge or arch bridge 失效
标题翻译：桁架桥或拱桥的加固结构
公开(公告)号：US06892410B2
公开(公告)日：2005-05-17
申请号：US10653173
申请日：2003-09-03
申请人： Mitsuhiro Tokuno , Fumihiro Saito , Seio Takeshima , Yoshiaki Nakai
发明人： Mitsuhiro Tokuno , Fumihiro Saito , Seio Takeshima , Yoshiaki Nakai
IPC分类号： E01D1/00 , E01D4/00 , E01D6/00 , E01D22/00 , E01D19/00
CPC分类号： E01D1/005 , E01D6/00 , E01D22/00
摘要： Through co-action between auxiliary triangular structural frames, which are each constructed at opposite ends of a truss girder or arch girder, and a cable stretched between the auxiliary triangular structural frames, an upwardly directed force is exerted to the truss girder or arch girder, thereby effectively inducing a load resisting force. A reinforcement structure of a truss bridge or arch bridge is comprised of a truss girder or arch girder, a first and a second end of which are each provided with a main triangular structural frame. The main triangular structural frame is provided at an inner side thereof with an auxiliary triangular structural frame. The auxiliary triangular structural frame is joined at vertexes thereof with frame structural elements at respective sides of the main triangular structural frame. A cable extends in a longitudinal direction of the truss bridge, being stretched between a nearby part of a joined part at one of the vertexes of the auxiliary triangular structural frame on a side of the first end of the truss girder or arch girder and a nearby part of a joined part at a corresponding one of the vertexes of the auxiliary triangular structural frame on a side of the second end of the truss girder or arch girder. Deflecting structure, adapted to exert a downwardly directed force to the cable, is inserted between the cable and a lower chord of the truss girder or arch girder so as to tension the cable, and an upwardly directed force is exerted to the lower chord by a reaction force attributable to tension of the cable via the deflecting structure.
摘要翻译：通过在桁架梁或拱梁的相对端构造的辅助三角形结构框架之间的协同作用和在辅助三角形结构框架之间延伸的缆索，向上的力施加到桁架梁或拱梁，从而有效地引起承载力。桁架桥或拱桥的加固结构由桁架梁或拱梁组成，其桁架梁或拱梁的第一和第二端分别设有主三角形结构框架。主三角形结构框架的内侧设有辅助三角形结构框架。辅助三角形结构框架的顶点在主三角形结构框架的相应侧与框架结构元件连接。电缆沿着桁架桥的纵向方向延伸，在辅助三角形结构框架的一个顶点处的桁架梁或拱形梁的第一端的一侧的接合部分的附近部分和附近在桁架梁或拱形梁的第二端侧的辅助三角形结构框架的相应一个顶点处的接合部分的一部分。适于向电缆施加向下定向的力的偏转结构被插入在电缆和桁架梁或拱形梁的下弦之间，以便拉紧电缆，并且向上的力通过一个由于电缆通过偏转结构的张力引起的反作用力。

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