Application of dehumidification as anti-corrosion technology on suspension bridges: A review

Zhang, Muxing; Huang, Shifang; Shah, Kwok Wei; Zhang, Xiaosong

doi:10.1016/j.applthermaleng.2021.117549

Cited by 20 publications

(5 citation statements)

References 101 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…(5) Increase the number of outlet clamps to obtain a higher discharge ratio. (6) The time for Xihoumen Bridge to complete a main cable dehumidification is estimated to be 100-300 days.…”

Section: Discussionmentioning

confidence: 99%

“…The main construction material of the main cable is steel, and its greatest threat during operation is corrosion [5]. Moisture in the main cable is the main cause of its corrosion [6]. When the ambient humidity is higher than 60%, the corrosion rate of steel will be significantly accelerated.…”

Section: Introductionmentioning

confidence: 99%

“…After cooling and pressurization, it enters the interior of the main cable steel wire from an air clamp. After absorbing a certain amount of moisture, it is discharged to the atmospheric environment or flows to the inlet of the dehumidifier through another air clamp for dehumidification before entering the next dehumidification process [6,11,13].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Parameter Selection for the Dehumidification System of the Main Cable of Suspension Bridge Based on Ventilation Experiments

et al. 2023

View full text Add to dashboard Cite

Moisture in the main cable is the main cause of steel wire corrosion. Modern suspension bridges utilize main cable dehumidification systems to prevent corrosion. The main cable ventilation experiment can help the selection of the system parameters. This research is based on the ventilation experiment of the main cable of Xihoumen Bridge to obtain the design parameters of the dehumidification system. According to the experiment, the suitable dehumidification distance is 150–180 m; the pressure loss of the main cable with a length of 150 m is 200–300 Pa, so the inlet pressure should be higher than 300 Pa; increasing the outlet clamp can increase the dehumidification efficiency; Under single inlet and double outlet situation, every 100% increase in air volume increases the dehumidification capacity is about 35%. The water content of the main cable of Xihoumen Bridge is 5.74 kg/m3, and 1 m3 of dry air can remove 5.5 g of water under experimental conditions, and the minimum air volume is 30 m3/h. The main factors affecting the dehumidification time are air volume and leakage rate. Input these parameters into the dehumidification system for the dehumidification experiment, and the water content of the outlet clamp will drop by about 37.5% within ten days.

show abstract

“…(5) Increase the number of outlet clamps to obtain a higher discharge ratio. (6) The time for Xihoumen Bridge to complete a main cable dehumidification is estimated to be 100-300 days.…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Parameter Selection for the Dehumidification System of the Main Cable of Suspension Bridge Based on Ventilation Experiments

et al. 2023

View full text Add to dashboard Cite

show abstract

“…At the same time, the atmospheric environment of the river and the sea is characterized by high humidity and high salt fog [6], which is easy to form electrolyte corrosion solutions with different salt concentrations and pH values. Due to the lack of winding protection, the poor sealing of the cable inlet and outlet, and the wind effect at the main cable saddle, the electrolyte corrosion solution easily invades and accumulates in the main cable gap [7]. Therefore, the main cable is always subject to the electrolyte corrosive solution.…”

Section: Introductionmentioning

confidence: 99%

Tribo-corrosion interaction of the parallel steel wires in the suspension bridges

Wang

Chong

et al. 2023

Friction

View full text Add to dashboard Cite

The effect of contact load and relative displacement on tribo-corrosion interaction of parallel steel wires of main cable in the suspension bridge was investigated in this study. A self-made tribo-corrosion test bench was employed to conduct tribo-corrosion tests of parallel steel wires in 3.5% (wt%) NaCl solution and deionized water under different contact loads and different relative displacements. The friction coefficient and wear coefficient of wires were presented. Electrochemical corrosion behavior (Tafel polarization curves, Nyquist diagram, and equivalent circuit diagram) was characterized by electrochemical analyzer. Wear morphology was observed by scanning electron microscope. Wear volume loss and corrosion-wear interaction were quantitatively demonstrated by high-precision weighing balance. The results show that the electrochemical corrosion ability of the steel wires increases with the increase of the contact load or relative displacement. The increased contact load or relative displacement increases the volume loss of corrosion-wear and pure wear, but decreases the wear coefficient. The wear mechanisms in 3.5% NaCl solution are adhesive wear, abrasive wear, and corrosive wear as compared to adhesive wear and abrasive wear in deionized water under different contact loads. The wear mechanisms of parallel steel wires are slightly different under different relative displacements. But the main wear mechanisms are similar to that under different contact loads. The interaction effects of corrosion and wear produced by the contact load and relative displacement are all the synergistic effects.

show abstract

“…From this point we can understand that our method is cost effective, fast, environment friendly Easy to use, do not require well train labors, this method is the future of the maintenance and repair. [7] 6. Methodology Apparatus i.…”

mentioning

confidence: 99%

Advanced Intelligent Corrosion Removal Maintenance Techniques Towards Failure Prevention and Enhanced Life of Steel Structures

Matani¹,

Dusane

2022

Advances in Transdisciplinary Engineering

View full text Add to dashboard Cite

The various root causes of the failure occurred within the structure, the fortification on its failure, anatomy of the structural repair, the exclusive facts associated with innovative methods and protective treatment and lots of a lot of things are mentioned and presented during this project report. The target of building maintenance to form the building and their connected services are in the secure and guarded condition, to grant guarantee that the condition of building meets all legislative standards and requirement to perform the upkeep work indispensable to uphold the worth of physical assists of the building and additionally to accomplish the work essential to keep up the prevalence of the building maintenance. In a world today main problem is corrosion its losses economic and life. Corrosion can be prevented but not long time. Hence, we find out new treatment called as Sanjivani, and it is best for corrosion removal in current time comparatively other methods. Comparison analysis and test conducted result and equation and formula and whole procedure is given in our research paper. This is newly invented by us, still test going on it, it is future of maintenance repair and biggest assets war again corrosion. We have included various prevention measures and corrosion removal techniques used in industry and market currently and we have analyzed it by our point of view and given diagrammatic representation of methodology in form of flow chart and various apparatus used its benefits over existing methods advantages and old principle required for our test equation and derived our results and conclusion using standard norms.

show abstract

Application of dehumidification as anti-corrosion technology on suspension bridges: A review

Cited by 20 publications

References 101 publications

Parameter Selection for the Dehumidification System of the Main Cable of Suspension Bridge Based on Ventilation Experiments

Parameter Selection for the Dehumidification System of the Main Cable of Suspension Bridge Based on Ventilation Experiments

Tribo-corrosion interaction of the parallel steel wires in the suspension bridges

Advanced Intelligent Corrosion Removal Maintenance Techniques Towards Failure Prevention and Enhanced Life of Steel Structures

Contact Info

Product

Resources

About