Arrangement structure and arrangement method of main cables of suspension bridge before rounding

Abstract

This application relates to an arrangement structure and arrangement method of the main cables of a suspension bridge before being rounded, and relates to the technical field of bridge engineering. The arrangement structure includes wire strands of two sizes, and the wire strands of a small size are arranged on the periphery of the wire strands of a large size; The arrangement method described above includes: selecting large-size wire strands and small-size wire strands; conducting trial calculations based on the designed area of ​​the main cable; based on the sum of the numbers of large-size wire strands and small-size wire strands satisfying a regular hexagon, and The number is a multiple of six, and multiple calculated steel wire diameters are calculated; select the standard steel wire diameter closest to the calculated steel wire diameter, and the corresponding number of a group of large-size wire strands and small-size wire strands, until the actual main cable area and The designed main cable area is within the preset error range. In this application, steel wires with standardized diameters are combined into two strands of different specifications, and the main cable of the suspension bridge is mixed to form an arrangement structure that is conducive to extrusion.

Description

technical field [0001] The present application relates to the field of bridge engineering, and in particular, to an arrangement structure and arrangement method before the main cables of a suspension bridge are extruded. Background technique [0002] In the field of suspension bridge engineering, the main cable is one of the most important components. At present, the main cables of domestic suspension bridges mostly adopt the prefabricated parallel wire strand method. In order to reduce the porosity of the main cable and facilitate the erection, the wires in the wire strands are generally arranged in a regular hexagon, and the number of wires is generally 37 wires, 61 wires, and 91 wires (see figure 1 ), 127 wire or 169 wire, etc. In the process of arranging the main cable, a number of regular hexagonal wire strands are firstly shaped with shaping ties, and then the several wire strands are arranged into a regular hexagonal main cable (see figure 2 ). The erection proce...

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present application provides an arrangement structure and arranging method before the main cable of the suspension bridge is rounded, and steel wires with standardized diameters are combined into two types of wire strands of different specifications, and the main cables of the suspension bridge are mixed to form a pre-rounded construction that is more conducive to the rounding construction. The arrangement structure solves the technical problems of easy messy wires and various diameters and specifications of the main cable wires

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