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    • 5. 发明公开
    • CONCRETE SLAB JOINT STABILIZING SYSTEM AND APPARATUS
    • 系统和设备稳定价格混凝土面板连接
    • EP1948866A4
    • 2013-10-02
    • EP06837874
    • 2006-11-16
    • COSTA ROBERT PIM DO SUN
    • COSTA ROBERT PIM DO SUN
    • E01C11/02
    • E01C11/14E01C7/147Y02A30/68
    • A joint stabilizing apparatus having an expandable cylindrical housing is inserted into a circular hole drilled at a "loose joint" of a concrete slab that is to be stabilized against relative vertical displacement between adjacent slab sections. The hole is drilled downward into the concrete, centered on the plane of a lateral opening/joint in the concrete slab. The expandable housing comprises two rigid semi-circular housing halves, and the assembly is oriented inside of the circular hole such that the two housing halves are on opposite sides of the centerline of the lateral opening/joint. The housing halves are pushed apart by turning of a threaded bolt inside of the housing. Turning of the bolt causes two bi-laterally symmetric wedge blocks to draw towards each other, and pressing the bearing surfaces of the wedge blocks against inclined surfaces inside of the respective housing halves. As the housing halves are pushed apart, the outside surfaces of the expandable housing engage the walls of the drilled hole and apply opposing horizontal compressive forces to the slab sections. Friction between the expandable housing and the concrete slab sections prevent the slab sections from vertically moving relative to each other. In other embodiments of the invention, the joint stabilizing apparatus is used to prevent relative motion between non-horizontal construction members, and between four adjacent slab sections separated by intersecting loose joints.
    • 8. 发明公开
    • Querkraftdornlagerung
    • 剪切载荷销钉安装
    • EP0814213A1
    • 1997-12-29
    • EP97810368
    • 1997-06-12
    • PECON AG
    • MUELLER ERICHNANCOZ STEPHANE
    • E01C11/02E01C11/14E01D19/06E04B1/48
    • E01C11/14E04B1/483
    • Beidseits einer Fuge (F) ist je ein Lagerkorb (10,11) angeordnet. Jeder Lagerkorb (10,11) besteht aus einer Stirnplatte (3) und einem trapezförmig gebogenen Stahlband (4), welches mit der Stirnplatte (3) verschweisst ist. Der Querkraftdorn (1) ist fest mit dem einen Lagerkorb (10) und die Querkraftdornlagerhülse (2) fest in der Stirnplatte (3) des anderen Lagerkorbes (11) gehalten. Der Querkraftdorn (1) bzw. die Querkraftdornlagerhülse (2) durchsetzen die Stirnplatte (3) und das Stahlband (4) des einen Lagerkorbes (10) bzw. des anderen Lagerkorbes (11).
    • 一个接头(F)的轴承保持架(10,11)的两侧上布置的每个。 各轴承保持架(10,11)包括前板(3)和被焊接到前板(3)的梯形形弯曲的钢条(4)。 剪切负载销钉(1)与一个存储盘(10)和剪切负载销轴承套牢固地保持(2)牢固地在端板(3)的另一轴承篮(11)的。 剪切负载销钉(1)和剪切负载销轴承套(2)穿过所述端板(3)和轴承保持架(10)或另一个轴承篮(11)的带材(4)的钢。