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27 条记录 (耗时 0.01 秒)

    STRUCTURAL SYSTEM FOR ARCH BRIDGES, WITH MOBILIZATION OF EXTERNAL REACTIONS THROUGH DEFINITIVE TIES
    2.
    发明公开
    STRUCTURAL SYSTEM FOR ARCH BRIDGES, WITH MOBILIZATION OF EXTERNAL REACTIONS THROUGH DEFINITIVE TIES 审中-公开

    公开(公告)号：EP3325721A1

    公开(公告)日：2018-05-30

    申请号：EP16763337.9

    申请日：2016-07-20

    申请人： Fonseca, João ,  Pinto, Clemente

    发明人： Fonseca, João ,  Pinto, Clemente

    IPC分类号： E01D4/00

    摘要： The application concerns the controlled addition of stiffness to arch bridge structures, through definitive ties systems (3), prestressed between external anchorages (8) and the arch (1) or the deck (2), in order to mobilize reactions and reduce the structure weight. A reduced flexural stiffness of slender arches and thin decks is compensated by the addition of prestressed ties. The mobilization of the prestressed ties stiffness in tension or relative compression, results in forces that directly balance the external loads, transmitting them to the foundations. On the other hand, the system of ties associated with the slender arch and the thin deck, enables equilibrium of loads for which the arch does not have anti-funicular, shape, such as variable live loads. The external anchored definitive ties system is responsible for balancing of variable loads, so that the bending stiffness and strength of arch and deck can therefore be reduced.

    PRESTRESSED COMPOSITE TRUSS GIRDER AND CONSTRUCTION METHOD OF THE SAME
    4.
    发明公开
    PRESTRESSED COMPOSITE TRUSS GIRDER AND CONSTRUCTION METHOD OF THE SAME 有权
    预应力桁架梁及其施工方法

    公开(公告)号：EP1383962A4

    公开(公告)日：2004-01-28

    申请号：EP02701797

    申请日：2002-02-28

    申请人： WON DAE-YON

    发明人： WON DAE-YON

    IPC分类号： E01D1/00 ,  E01D2/00 ,  E01D2/02 ,  E01D2/04 ,  E01D4/00 ,  E01D6/00 ,  E01D6/02 ,  E04C3/26 ,  E04C3/293

    CPC分类号： E01D2/02 ,  E01D6/00 ,  E01D6/02 ,  E01D2101/285

    摘要： The present invention relates to prestressed composite truss girder and construction method of the same. The prestressed composite truss girder of the present invention comprises a concrete bottom plate having structure of composite truss; a lower-chord member being composed of prestressed concrete wherein prestress is induced to resist against the elongation strength generated when composing and not composing and to reduce the droop occurred at the state of composition and having perpendicular and horizontal cross-section of certain shape and certain length; web members wherein vertical chords and diagnal chords composed of rolled steel to upper plate of said lower-chord member; and upper-chord member combined with said web members along the longitudinal direction of said lower-chord member to resist against the compressive force generated before said concrete bottom plate being composed.

    METHOD OF ENLARGING THE SPACE BENEATH A MASONRY ARCH BRIDGE, AND A MASONRY ARCH BRIDGE
    7.
    发明公开
    METHOD OF ENLARGING THE SPACE BENEATH A MASONRY ARCH BRIDGE, AND A MASONRY ARCH BRIDGE 有权
    VERFAHREN ZUR ERWEITERUNG DES RAUMS UNTER EINERMAUERWERKBOGENBRÜCKEUNDMAUERWERKBOGENBRÜCKE

    公开(公告)号：EP3137684A1

    公开(公告)日：2017-03-08

    申请号：EP15719719.5

    申请日：2015-05-01

    申请人： Soletanche Freyssinet S.A.S.

    发明人： BENNETT, Kevin John ,  HARVEY, William John

    IPC分类号： E01D4/00 ,  E01D22/00

    CPC分类号： E01D22/00 ,  E01D4/00

    摘要： A method of enlarging the space beneath a masonry arch bridge which includes a masonry arch and a spandrel wall at each end of the masonry arch includes forming a movable portion of the masonry arch bridge by cutting the spandrel walls to form a cut on each side of the masonry arch. A lifting force is applied to the masonry arch to raise the masonry arch to a raised position. The masonry arch is then secured in the raised position.

    摘要翻译： 一种扩大砖石拱桥下方空间的方法，其中包括砌筑拱顶和砌筑拱顶两端的拱形墙体，包括：通过切割砌筑拱桥，形成砌筑拱桥的可移动部分，以在 石砌拱门 将砌筑拱顶施加到砌筑拱顶上，将砖石拱顶提升至升高位置。 然后将砖石拱顶固定在升高位置。

    Arrangement for forming arc section of right circular cylinder
    9.
    发明公开
    Arrangement for forming arc section of right circular cylinder 有权
    Anordnung zur Bildung eines Bogenabschnitts eines rechtenkreisförmigenZylinders

    公开(公告)号：EP2881518A1

    公开(公告)日：2015-06-10

    申请号：EP14195620.1

    申请日：2014-12-01

    申请人： Aaltopuu Oy

    发明人： Honkala, Tapani Samuel

    IPC分类号： E04B1/32 ,  E01D4/00

    CPC分类号： E04B1/3205 ,  E01D4/00 ,  E04B2001/3276

    摘要： The present invention relates to an arrangement for forming an arc section (1) of a right circular cylinder, out of wood, in particular. Such an arc section comprises battens (2, 3, 4) mechanically secured to each other in a parallel position and formed wavelike. In these battens, holes (15) are arranged, essentially perpendicular to and in alignment with the longitudinal axis (11) of the battens, in order to form tightening channels (16). The tightening channel has a tension rod (17) with its stoppage means (18) extending to the outer edges of the arc section to tighten the battens that the tension rod penetrates against each other. Said battens are formed curved so that each bottom surface (8) has a radius of curvature (R), whereby the top surface (7) and the waveform accomplished on lateral surfaces (5, 6) with its wave crests (12) and wave troughs (13) is arranged to be essentially parallel with the bottom surface.

    摘要翻译： 本发明涉及一种用于形成特别是木材的右圆柱体的弧形部分（1）的装置。 这种弧形部分包括彼此机械地固定在平行位置并形成波浪形的条板（2,3,4）。 在这些板条中，为了形成紧固通道（16），孔（15）被布置成基本上垂直于板条的纵向轴线（11）并与之对准。 紧固通道具有拉杆（17），其止动装置（18）延伸到弧形部分的外边缘，以紧固张力杆相互穿透的条状物。 所述板条形成为弯曲的，使得每个底表面（8）具有曲率半径（R），由此顶表面（7）和波形（5,6）在其波峰（12）和波形 槽（13）布置成基本上与底表面平行。

    AN ARCH BRIDGE
    10.
    发明授权
    AN ARCH BRIDGE 有权

    公开(公告)号：EP4118266B1

    公开(公告)日：2024-07-17

    申请号：EP21719856.3

    申请日：2021-03-09

    IPC分类号： E01D4/00

    CPC分类号： E01D4/00