A PERFORMANCE ALARMING METHOD FOR BRIDGE EXPANSION JOINTS BASED ON TEMPERATURE DISPLACEMENT RELATIONSHIP MODEL

    公开(公告)号:US20190228117A1

    公开(公告)日:2019-07-25

    申请号:US16336807

    申请日:2018-03-14

    摘要: The present invention belongs to the technical field of health monitoring for civil structures, and a performance alarming method for bridge expansion joints based on temperature displacement relationship model is proposed. First, the canonically correlated temperature is proposed to maximize the correlation between bridge temperature field and expansion joint displacement; second, a temperature displacement relationship model for bridge expansion joints is established based on canonically correlated temperatures; then, a mean-value control chart is constructed to the error of temperature displacement relationship model; finally, reasonable control limits are determined for the mean-value control chart. A more accurate temperature displacement relationship model can be established based on canonically correlated temperatures, which is of important value to improve the performance alarming ability for expansion joint.

    Structural joint
    12.
    发明授权

    公开(公告)号:US10323359B2

    公开(公告)日:2019-06-18

    申请号:US16101810

    申请日:2018-08-13

    摘要: The present invention relates to a expansion joint to bridge an expansion gap between two parts of concrete slabs used in floor construction, especially in the manufacture of concrete floors such as for example in industrial floors. Such expansion joints are evidently required to take up the inevitable shrinkage process of the concrete and to assure that the floor elements can expand or contract such as for example occur by temperature fluctuations and resulting in a horizontal displacement of the floor panels vis-à-vis one another.

    Roadway joint device
    14.
    发明授权

    公开(公告)号:US09957676B2

    公开(公告)日:2018-05-01

    申请号:US14768455

    申请日:2014-02-10

    IPC分类号: E01D19/06 E01C11/02

    摘要: A roadway joint device for providing a drivable joint section between a road and an adjoining structure, particularly a bridge structure, includes at least one joint element placed on a sliding surface adjacent to the bridge structure. A longitudinal axis of the joint element is arranged substantially parallel to a plane of the roadway and a bridge end section of the bridge structure. Joint gaps with a specified gap width are arranged between the joint element and the adjoining bridge end section and/or an adjoining retaining device arranged at a distance to the bridge end section. The joint element is attached to at least one rod, the rod being arranged substantially in the direction of the longitudinal axis of the bridge structure, anchored at one rod end in the bridge structure and another rod end thereof in the retaining device.

    Bridge expansion joint
    15.
    发明授权

    公开(公告)号:US09938676B2

    公开(公告)日:2018-04-10

    申请号:US15262082

    申请日:2016-09-12

    发明人: Ja Hwa Koo

    IPC分类号: E01D19/06

    CPC分类号: E01D19/065 E01D19/06

    摘要: In a bridge expansion joint, a pair of lower plates is disposed between one bridge deck section and the other bridge deck section with leaving a predetermined interval. An upper plate is respectively disposed on an upper surface of the lower plate, in which the width of the upper plate in the horizontal direction is smaller than that of the lower plate. A load supporting means is disposed on the upper surface of the upper plate. The load supporting means comprises a pair of link members or a pair of finger members. A reinforced plate is disposed between the load supporting means and the lower plate, in which an inclined plane is respectively provided at both sides of the reinforced plate so that the reinforced plate has a narrow top and wide bottom-shaped section.

    Flexible expansion joint seal
    16.
    发明授权

    公开(公告)号:US09850662B2

    公开(公告)日:2017-12-26

    申请号:US15135015

    申请日:2016-04-21

    发明人: Lester Hensley

    摘要: An expansion joint seal includes a central portion having at least one central chamber disposed around a centerline, a first flange portion extending outwardly from the centerline and a second flange portion extending outwardly from the centerline in a direction opposite the first flange portion. When installed on the structure, the first flange portion is attachable to a first substrate of the structure and the second flange portion is attachable to a second substrate of the structure such that the central portion is disposed within and seals a gap formed between the first substrate and the second substrate of the structure. Movement of one or both of the first substrate and the second substrate causes a response in the central portion to maintain the seal.

    Movement joint
    17.
    发明授权

    公开(公告)号:US09765485B2

    公开(公告)日:2017-09-19

    申请号:US14344083

    申请日:2012-08-31

    申请人: Andrew Keen

    发明人: Andrew Keen

    摘要: A free movement, arris protection, construction joint has a pair of arris protection members formed complementarily from strips of sheet with a continuous trapezium wave form. A divider one of the members is typically 100 mm deep for a nominal 0.1 m deep slab. The other one is typically 50 mm deep. The members are of steel plate.The wave form is comprised of flanges extending in the length of the joint and of webs angled to the flanges and the length of the joint. The flanges are spaced on opposite sides of a mid-plane of the joint. The members are bolted together with flangible nylon bolts, with their top (in use) edges flush. Welded to the outer ones of the flanges are L strips having apertures in their flats extending from the flanges for anchoring the joint to its slabs.

    Earthquake-resistant flat expansion joint using hinge
    20.
    发明申请
    Earthquake-resistant flat expansion joint using hinge 审中-公开
    抗震平板膨胀节采用铰链

    公开(公告)号:US20090064602A1

    公开(公告)日:2009-03-12

    申请号:US11898282

    申请日:2007-09-11

    IPC分类号: E04B1/98 E01D19/06

    摘要: An earthquake-resistant flat expansion joint using a hinge is provided which includes an expansion joint main body disposed between opposite ends of deck slabs of a bridge or an elevated road, hinged to one side of the deck slab at its one end to enable behavior in X, Y and Z-axis directions, and expanded or shrunk depending on temperature variation and vibrations due to earthquakes to be moved in the X, Y and Z-axis directions, an expansion/shrinkage member connected to one end of the expansion joint main body to accommodate the behavior in X, Y and Z-axis directions due to expansion and shrinkage of the expansion joint main body caused by temperature variation and occurrence of the earthquakes, a hinge shaft support member installed at one end of the deck slab to support a lower part and side parts of a hinge shaft part of the expansion joint main body, an expansion joint support member installed at one end of the other deck slab to support lower parts of an expansion part of the expansion joint main body and the expansion/shrinkage member, anchor bolts for fixing the hinge shaft support member and the expansion joint support member to the opposite deck slabs, and a rubber seal disposed under the expansion joint main body and detachably installed at a space between both opposite ends of the deck slabs to collect rainwater and foreign substances.

    摘要翻译: 提供一种使用铰链的抗震扁平膨胀接头,其包括设置在桥梁或高架道路的甲板板的相对端之间的膨胀节主体,其一端铰接在甲板板的一侧,以使其能够 X,Y,Z轴方向,根据由于在X,Y,Z轴方向上移动的地震引起的温度变化和振动而膨胀或收缩;膨胀接头主体 由于由温度变化和地震的发生而引起的膨胀节主体的膨胀和收缩,以适应X,Y和Z轴方向的行为,安装在甲板板的一端以支撑的铰链轴支撑构件 膨胀接头主体的铰链轴部的下部和侧部,安装在另一个甲板板的一端的膨胀接头支撑构件,以支撑膨胀接头主体的膨胀部的下部 安装接头主体和膨胀/收缩构件,用于将铰链轴支撑构件和膨胀接头支撑构件固定到相对的甲板平板上的锚固螺栓,以及设置在膨胀节主体下方的橡胶密封件,并且可拆卸地安装在 甲板板的两端都收集雨水和异物。