Bridge truss, bridge span including such trusses, and method of
constructing the truss
    3.
    发明授权
    Bridge truss, bridge span including such trusses, and method of constructing the truss 失效
    桥梁桁架,跨越这种桁架的桥梁,以及构造桁架的方法

    公开(公告)号:US4642830A

    公开(公告)日:1987-02-17

    申请号:US679554

    申请日:1984-12-07

    申请人: Pierre Richard

    发明人: Pierre Richard

    摘要: A prefabricated three-dimensional truss structure for a bridge, or the like, the truss formed from bars arranged to define triangular or rectangular patterns. The bars are formed from prestressed, high-strength concrete that are connected at their ends with assembly blocks that are prestressed, the prestress being preferably provided by the cables that prestress the bars, and which terminate at the blocks. A plurality of such unit trusses can be assembled to provide a truss structure for a bridge span, and the trusses can assume a wide variety of configurations.

    摘要翻译: 用于桥等的预制三维桁架结构,由设置成限定三角形或矩形图案的条形成的桁架。 杆由预应力的高强度混凝土形成,其在其端部连接有预应力的组装块,预应力优选地由预应力杆的电缆提供,并且终止于块。 可以组装多个这样的单元桁架以提供用于桥跨的桁架结构,并且桁架可以采取各种各样的构造。

    Joint for truss structure
    4.
    发明授权
    Joint for truss structure 失效
    桁架结构接头

    公开(公告)号:US5310273A

    公开(公告)日:1994-05-10

    申请号:US910241

    申请日:1992-07-09

    申请人: Yukio Hara

    发明人: Yukio Hara

    IPC分类号: E02B3/06 E04B1/19 E02D29/00

    摘要: A joint structure for removably attaching a ball member to an end of a bar member to form a truss structure is disclosed having an engagement member attached to the ball member, which engagement member has an exterior portion extending outwardly of the outer surface of the ball member, and an attachment device associated with the end of the bar member which removably engages the exterior portion of the engagement member. The joint structure according to the present invention may be utilized with bar members with or without tension rods extending through the bar member. The ball structure may be a spherical shell made of metal or fiber reinforced plastic which is located within a hollow concrete sphere. The spherical shell is not removed from the interior of the concrete sphere, but, instead, is used to increase the tensile force resistance of the ball member. The spherical shell may be imbedded in the ball member at the time of forming the concrete ball and can be used as a molding core.

    摘要翻译: 公开了一种用于可拆卸地将球形构件连接到杆构件的端部以形成桁架结构的接合结构,其具有附接到球构件的接合构件,该接合构件具有从球构件的外表面向外延伸的外部部分 以及与杆构件的端部相关联的附接装置,其可拆卸地接合接合构件的外部部分。 根据本发明的接头结构可以与具有或不具有延伸穿过杆构件的张力杆的杆构件一起使用。 球结构可以是由位于中空混凝土球体内的金属或纤维增强塑料制成的球形壳体。 球形壳体不从混凝土球体的内部移除,而是用于增加球形构件的抗拉力。 在形成混凝土球时,球形壳体可以嵌入球形件中,并且可以用作模制型芯。

    Frame-forming method and apparatus
    6.
    发明授权
    Frame-forming method and apparatus 失效
    框架形成方法和装置

    公开(公告)号:US4245809A

    公开(公告)日:1981-01-20

    申请号:US937943

    申请日:1978-08-30

    申请人: Andrew G. Jackson

    发明人: Andrew G. Jackson

    摘要: A structural framing system and apparatus for use in the fabrication of a structural framework of selected geometric configuration of cast material, for example, concrete or plastic. The method and apparatus of the present invention includes a generally hollow hub form defined by a generally continuous shell of selected geometric form to provide a locus for radiating and outwardly extending frame member forms, which communicate with the hub form where a suitable hardenable material is provided to fill the hub form and the frame member forms to provide a self-supporting structural framework of interconnected hubs and frame members, the frame members extending divergently outwardly from the hub members. Structural reinforcements such as reinforcing steel can be attached within the hub to extend divergently outwardly through the frame form members.

    摘要翻译: 一种用于制造铸造材料,例如混凝土或塑料的​​所选几何构型的结构框架的结构框架系统和装置。 本发明的方法和装置包括由选定几何形状的大致连续的外壳限定的大致中空的轮毂形式,以提供用于辐射和向外延伸的框架构件形式的轨迹,其与提供适当的可硬化材料的毂形式连通 以填充轮毂形式并且框架构件形成以提供互连轮毂和框架构件的自支撑结构框架,框架构件从轮毂构件向外延伸。 诸如钢筋之类的结构增强件可以安装在轮毂内,以分散的方式向外延伸穿过框架构件。