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Tensioning device for stay cable which is provided with single-lug or double-lug sleeve and can be adjusted in one direction or two directions and construction method of device

A technology of two-way adjustment and tensioning device, which is applied in the direction of erecting/assembling bridges, bridge parts, bridges, etc., to achieve the effect of convenient installation and disassembly, light weight and exquisite design

Inactive Publication Date: 2015-03-25
HOHAI UNIV
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Problems solved by technology

The second is to solve the problem of how to stretch the control force accuracy

Method used

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  • Tensioning device for stay cable which is provided with single-lug or double-lug sleeve and can be adjusted in one direction or two directions and construction method of device
  • Tensioning device for stay cable which is provided with single-lug or double-lug sleeve and can be adjusted in one direction or two directions and construction method of device
  • Tensioning device for stay cable which is provided with single-lug or double-lug sleeve and can be adjusted in one direction or two directions and construction method of device

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Embodiment Construction

[0033] The device and construction method of the present invention will be further described below in conjunction with the drawings.

[0034] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importan...

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Abstract

The invention provides the stay cable tensioning technology, and relates to a tensioning device for a stay cable which is provided with a single-lug or double-lug sleeve and can be adjusted in one direction or two directions and a construction method of the device. The tensioning device comprises a prefabricated lower clamping base, fastening bolts, a tensioning steel strand, a prefabricated upper clamping base, front-clamping type hydraulic jacks, a core-through load sensor and a sensor data collecting system, wherein an extrusion and anchoring end socket is arranged at one end of the tensioning steel strand. By means of the tensioning device for the stay cable and the construction method of the tensioning device, cable tensioning can be effectively finished, the two front-clamping type hydraulic jacks symmetrically tension the stay cable so that the device can bear stress evenly, the hydraulic jacks are controlled through readings of jack oil pressure gauges and the core-through load sensor, and errors can be reduced. The whole device is easy to manufacture and convenient to operate, and has high practical value and popularization value.

Description

technical field [0001] The invention relates to a cable tensioning technology, which relates to a tensioning device and a construction method for single and double ear sleeve single and two-way adjustable cable stays in the field of civil engineering. Background technique [0002] With the rapid development of the bridge industry, various cable-stayed bridges are constantly emerging in the engineering field. The traditional stay cables use finished cables, and the anchorage generally adopts cold-cast anchors or clip-type group anchor systems. The tension end of the stay cables is at the beam section of the stay cables, and the tension construction technology is relatively mature. [0003] However, as the service life of cable-stayed bridges gradually increases, more and more cable-stayed cables are facing replacement. Traditional cable-stayed cables face problems such as difficult replacement, complicated operation, and great damage to the original structure. This makes many...

Claims

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Application Information

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IPC IPC(8): E01D21/00E01D19/16
CPCE01D21/00
Inventor 袁爱民何雨吴闻秀程宏斌钱守龙董华能
Owner HOHAI UNIV
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