An anti-slip cable saddle structure with corrugated medial septum

Abstract

The invention discloses an anti-slip cable saddle structure with a corrugated longitudinal partition, which comprises a saddle, at least one corrugated longitudinal septum parallel to the groove wall is arranged at the bottom of the saddle groove of the saddle, the inner surface of the groove wall is corrugated; the inner surface of the groove wall , Corrugated mediastinal plates are combined to form a wave-shaped groove of equal width. A single strand can be placed in the groove, and the strands can be distributed along the waveform, thereby creating a horizontal wrap angle of the strands, increasing the strength of the strands and the saddle groove wall, and the waveform. The friction force between the mediastinal plates can even ensure that the main cable will not slide in the saddle groove when the cable strands have no vertical wrap angle. Therefore, the anti-skid cable saddle structure of the present invention provides an effective solution, which can greatly improve the anti-skid ability of the cable saddle, thereby expanding the application range of the suspension bridge.

Description

technical field [0001] The invention belongs to the technical field of suspension bridges, and in particular relates to an anti-slip cable saddle structure with a corrugated longitudinal partition. Background technique [0002] Suspension bridges use main cables and slings as the suspension system of stiffened beams to transfer loads to bridge towers and anchorage bridges. The main load-bearing structure of the bridge is composed of bridge towers and high-strength flexible cables suspended on the bridge towers. It is composed of sling, stiffening beam and anchor structure. The load on the bridge span is borne by the stiffened beam and transmitted to the cable through the sling. The main cable is the main load-bearing structure, but it only bears tension; the cable itself is a geometrically variable body, but it can Combined with the acting load, a balanced force-bearing structural system with a certain geometric shape is formed in space. The tension of the main cable is tr...

AI Technical Summary

Problems solved by technology

However, the above methods are all based on the use of the arc in the vertical plane of the cable strands in the saddle groove, that is, the cable strands have a wrap angle downward, and the cable strands will be squeezed downward when they are pulled, and because the cable strands are composed of many It is composed of loose steel wires, which will produce lateral extrusion when it is pressed downwards. These methods essentially use the characteristics of the vertical wrap angle of the cable strands. The size of the vertical wrap angle is often affected by the mid-span ratio of the suspension bridge side, mainly The limitation of the cable rise-span ratio can no longer be increased, and when the unbalanced force of the main cable on both sides of the cable saddle is large, the anti-slip capability of the cable saddle is still insufficient

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