Intelligent suspension bridge anchoring dehumidification protection system and method

Abstract

The invention discloses an intelligent suspension bridge anchoring dehumidification protection system and method, and belongs to the technical field of bridge engineering. The dehumidification protection system comprises an air supply system, an air exhaust system, a monitoring system and a control system. The air supply system is located on the upper anchor face of the suspension bridge prestressanchor, the air exhaust system is located on the lower anchor face of the suspension bridge prestress anchor, and the air supply system and the air exhaust system are flexibly connected with the protective cover. The monitoring system is located in air channels of the air supply system and the air exhaust system, and the control system is electrically connected with the monitoring system. The anchor cable grouting gas is used as research content for the first time, the blank of the domestic suspension bridge prestress anchoring dehumidification protection technology is filled up, the perceptible capacity of anchoring cable corrosion prevention is improved while the original corrosion prevention effect is achieved, the monitorable condition is provided for the anchoring cable, and the method is suitable for application and popularization.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering, and relates to an anchoring and dehumidification protection system and method for a large-span intelligent suspension bridge. Background technique [0002] Anchor is the key structure for the suspension bridge to bear the force and load. It plays the role of transmitting the tension of the main cable to the foundation. The anchorage of the suspension bridge is generally a large-volume concrete structure. The main cable passes through the strand connection system and the transmission in the concrete cable. The force system transmits huge pulling force to the anchorage and foundation. The strand connection system and the force transmission system in the cable body are collectively referred to as anchorage and anchorage systems, and are generally divided into two types: steel structure anchorage systems and prestressed anchorage systems. [0003] The anchorage and anchorage systems of la...

AI Technical Summary

Problems solved by technology

[0005] (1) Although grease can be monitored, it is very difficult to monitor. The inspection of the anti-corrosion effect needs to release the grease, and the indirect proof of the grease test is very expensive; and the appearance of the cable body is covered with grease, which is difficult to remove. Examination of the body surface is very difficult

[0006] (2) High requirements for construction technology: the grease poured into the channel of the replaceable anchorage anchorage system is in liquid state at present, the purpose is to facilitate the pouring and future grease replacement

But in this way, the sealing of the system puts forward high requirements on the construction. If there is a slight construction operation or inspection is not in place, the grease in the system will leak, which not only affects the appearance, but also has cracks in the concrete or poor water pressure. In severe cases, after the grease leaks out, water or water vapor can easily enter the sleeve, which will cause corrosion damage to the cable body and increase the operation and maintenance costs

[0007] (3) The grease replacement process is cumbersome: when replacing the grease, it is necessary to release the grease in the hole first, then clean the hole, and finally refill the grease. The grease replacement process is not only cumbersome to clean, but also expensive

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