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    • 4. 发明授权
    • Cold-formed steel joist
    • 冷成型钢托梁
    • US08407966B2
    • 2013-04-02
    • US12585402
    • 2009-09-14
    • Michael R. StricklandDouglas M. FoxLei Xu
    • Michael R. StricklandDouglas M. FoxLei Xu
    • E04C3/00E04H12/00
    • B21D47/01E04B5/29E04B5/40E04C3/065E04C3/07E04C3/083E04C3/09E04C3/291E04C3/292E04C3/294E04C2003/026E04C2003/0413E04C2003/0452E04C2003/0469
    • An upper chord bearing joist comprising a top chord member and a bottom chord member, each having a flange portion and a web receiving portion including two web receiving tabs, each made from a unitary piece of metal; a generally planar steel web, a portion of the web being attached to the top chord member and to the bottom chord member, wherein a top portion of the web is between the two web receiving tabs of the top chord member and a bottom portion of the web is between the two web receiving tabs of the bottom chord member; and a first and second pair of support members, each support member including a shoe portion, a web attaching portion, and an angled portion, the web attaching portion being attached to the web receiving tabs and the angled portion being in contact with the web. The joist may be cambered, have reinforcement stiffeners, and have a rotatable joint at either end. The joists may be used in composite with concrete or with wood.
    • 上弦支承托梁包括顶弦构件和底弦构件,每个翼弦构件具有凸缘部分和腹板接收部分,每个腹板接收部分包括由整体金属构成的两个腹板接收突片; 一个大致平面的钢腹板,一部分纤维网连接到顶部弦杆构件和底部弦杆构件上,其中幅材的顶部位于顶部弦杆构件的两个腹板接收翼片之间, 腹板位于底部弦杆构件的两个腹板接收舌片之间; 以及第一和第二对支撑构件,每个支撑构件包括靴部分,腹板附接部分和成角度部分,所述腹板附接部分附接到腹板接收凸片,并且成角度部分与腹板接触。 托梁可以是弧形的,具有加强筋,并且在任一端具有可旋转接头。 托梁可以与混凝土或木材混合使用。
    • 6. 发明授权
    • Sideform system
    • 双面系统
    • US08132776B2
    • 2012-03-13
    • US12514394
    • 2007-10-31
    • Robert Sladojevic
    • Robert Sladojevic
    • B28B7/00B22D19/00E04G9/00
    • E04G13/00B28B7/0017B28B23/0056E04B1/0007E04B1/483E04C3/28E04C3/291
    • A sideform (10) for a sideform system includes an elongate body member (12) defining a side forming face (14) and an opposed mounting portion (16) for mounting the body member on a sideform holder. At least one recessed region (18, 20), in which an insert is receivable, is defined in the body member (12). An engaging arrangement (22) is associated with the recessed region (18, 20) for securing the insert in position in the recessed region (18, 20). At least one attaching formation (28) is arranged on the body member (12) in association with the side forming face (14) for attaching an edge form.
    • 用于侧面系统的侧面(10)包括限定侧面形成面(14)的细长主体构件(12)和用于将主体构件安装在侧模架上的相对的安装部分(16)。 在主体构件(12)中限定有至少一个凹入区域(18,20),其中插入件可接收。 接合装置(22)与凹入区域(18,20)相关联,用于将插入件固定在凹入区域(18,20)中的适当位置。 与用于附接边缘形状的侧面形成面(14)相关联地,至少一个附接结构(28)布置在主体构件(12)上。
    • 10. 发明授权
    • Complex composite structures and method and apparatus for fabricating same from continuous fibers
    • 复合复合结构及其连续纤维制造方法和装置
    • US07132027B2
    • 2006-11-07
    • US10486815
    • 2002-08-16
    • David W. Jensen
    • David W. Jensen
    • B65H81/00
    • E04H12/00B29C53/564B29C53/8016B29C53/8066B29C70/222D04C1/06D04C3/40D04C3/48D10B2403/02411D10B2505/02E04C3/28E04C3/291E04C3/46Y10T428/2913
    • A method and apparatus for fabricating a complex, three-dimensional structure (12), such as a truss, from composite fiber/resin includes pulling a plurality of continuous fibers (50) from a feed source (62) along a processing path (58) about a longitudinal axis (14). At least some of the fibers are wound around the longitudinal axis in opposite directions (70,72) by rotational elements to form helical and reverse helical components (30, 34) that intersect at nodes (26,28). Select nodes are engaged by engagement members (84) and are maintained radially outwardly from the longitudinal axis by a support frame (80) to create sequential discrete segments (22) in the helical and reverse helical components. The select nodes can be engaged and maintained from outside the helical and reverse helical components. Resin can be applied to the fibers by resin applicator (90) and cured. A three-dimensional structure (200) can be formed with one or more continuous fibers forming two or more different components (204, 206) of the structure and transitioning at transition nodes (207). A three-dimensional structure can be formed with the components including a sleeve (162) of braided fibers surrounding a core (163) of elongated fibers to reduce gaps.
    • 从复合纤维/树脂制造诸如桁架的复合三维结构(12)的方法和装置包括沿着处理路径(58)从进料源(62)拉动多个连续纤维(50) )围绕纵向轴线(14)。 至少一些纤维通过旋转元件以相反方向(70,72)围绕纵向轴线缠绕以形成在节点(26,28)处相交的螺旋形和反向螺旋形部件(30,34)。 选择节点由接合构件(84)接合并且通过支撑框架(80)从纵向轴线径向向外保持,以在螺旋和反向螺旋构件中产生顺序的离散段(22)。 选择节点可以从螺旋和反向螺旋组件的外部接合和维持。 树脂可以通过树脂施加器(90)施加到纤维上并固化。 可以用形成结构的两个或更多个不同组分(204,206)的一个或多个连续纤维形成三维结构(200)并在过渡节点(207)处转变。 可以使用包括围绕细长纤维的芯(163)的编织纤维的套筒(162)以减少间隙的部件形成三维结构。