Sealing structure and sealing method for moisture removal clamp caulking of suspension cable main cable: Fid-Bau Portal

Sealing structure and sealing method for moisture removal clamp caulking of suspension cable main cable

TANG LIANG / ZHANG HAILIANG / FANG LEI / GU QINGHUA / HUANG DONGFANG

The invention discloses a sealing structure and a sealing method for a moisture removal clamp caulking of a suspension cable main cable. The sealing structure comprises a main cable, a winding wire, an air clamp, a protective winding belt, a wedge-shaped fixing belt, an appearance starting belt, a first fastening belt and a second fastening belt, wherein the wedge-shaped fixing belt comprises a body, a first groove and a second groove, the distance between the first groove and the air clamp is larger than the distance between the second groove and the air clamp on the section in the axial direction of the main cable, the section of the first groove is in a square groove shape, the cross section of the second groove is trapezoidal, and the second fastening belt is embedded in the second groove. Due to the structural design, the sealing effect of a circular seam part of the air inlet and outlet clamp can be guaranteed when the main cable is subjected to inflation drying protection, leakage of the circular seam part is completely eradicated, therefore the steel wires in the cable strands can be effectively protected, the service life of the steel wires of the main cable of the suspension bridge is prolonged, and the operation cost is reduced. The invention further provides a sealing method of the air clamp caulking.

一种悬索主缆除湿气夹敛缝的密封结构及密封方法，包括主缆，缠丝，气夹，防护缠带，楔形固定带，外观起始带，以及第一紧固带和第二紧固带。所述楔形固定带包括本体，第一凹槽，以及第二凹槽。在沿所述主缆的轴向的截面上所述第一凹槽相对于所述第二凹槽与所述气夹的距离更大，且所述第一凹槽的截面形状为方槽形。所述第二凹槽的截面形状为梯形。所述第二紧固带嵌设在所述第二凹槽中。由于上述的结构设计，可在主缆进行充气干燥防护时保证进出气夹环缝部位的密封效果，杜绝环缝部位的泄露，从而使索股内的钢丝能受到有效防护，提高悬索桥主缆钢丝的使用寿命，并降低运营成本。本发明还提供了一种气夹敛缝的密封方法。

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