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Device for automatically controlling and replacing sling of suspension bridge, and sling replacing method based on replacing device

A suspension bridge and suspension cable technology is applied in the field of automatic control and replacement devices for suspension cables of suspension bridges, which can solve the problems of inaccurate monitoring of cable force and failure to achieve automatic control, and achieve the effects of convenient assembly, high safety and simple equipment.

Active Publication Date: 2013-07-31
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The tensioning of the sling takes the cable length as the control target, and the monitoring of the cable force is not accurate enough to achieve the effect of automatic control

Method used

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  • Device for automatically controlling and replacing sling of suspension bridge, and sling replacing method based on replacing device
  • Device for automatically controlling and replacing sling of suspension bridge, and sling replacing method based on replacing device

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Embodiment Construction

[0019] The accompanying drawings disclose, without limitation, the structural schematic diagrams of the preferred embodiments involved in the present invention; the technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0020] Such as Figure 1-2 As shown, an automatic control replacement device for a suspension bridge sling, including a temporary cable clamp 1, a straddle-type steel cable 2, temporary slings a4 and b10, a hoist 9, a through-core force sensor 8, a pull-wire displacement sensor 6, a suspension Cable anchorage 5, central opening backing plate 7 and controller 3, the temporary cable clamp 1 is installed on the main cable 11 next to the sling 12 to be replaced, and the straddle type steel cable 2 is set on the temporary cable The upper and lower ends of the clamp 1 pass through the backing plate 7, and are fixed with the sling anchor 5. By adjusting the sling anchor 5, it is ensured that the c...

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PUM

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Abstract

The invention relates to a device for automatically controlling and replacing a sling of a suspension bridge, and a sling replacing method based on the device. The device sets the required sling force through a computer control system and automatically controls rotation of a winch so as to automatically control tension of a temporary sling precisely. Assembling of equipment can be finished quickly on construction site. The whole process adopts a controller to control rotation of the winch, so the sling can be replaced quickly; and a force sensor and a displacement sensor are comprehensively applied to judging whether new and old inhaul cables are stressed equally or not, so the safety is high.

Description

technical field [0001] The invention relates to a suspension bridge suspension cable automatic control replacement device, which belongs to the technical field of bridge engineering maintenance. [0002] Another technical purpose of the present invention is to provide a suspension bridge replacement method based on the suspension bridge automatic control replacement device. Background technique [0003] Suspension bridge is a bridge whose main load-bearing component is the cable or chain cable that bears the tension, and is mainly composed of main cable, suspension cable, cable tower, anchorage and bridge deck system. The suspension cable is the main force-transmitting component of the suspension bridge, which transfers the load on the bridge deck to the main cable, and the main cable transfers the load to the bridge tower and anchorage. [0004] The general design life of the sling is 30 to 50 years. Due to the long-term alternating load and the influence of the river and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D22/00
Inventor 傅中秋吉伯海程苗朱伟袁周致远
Owner HOHAI UNIV