Redirigiendo al acceso original de articulo en 21 segundos...
Inicio  /  Infrastructures  /  Vol: 8 Par: 3 (2023)  /  Artículo
ARTÍCULO
TITULO

Influence of Corrosion on Dynamic Behavior of Pedestrian Steel Bridges?Case Study

Susana Barrios    
Andrés Guzmán and Albert Ortiz    

Resumen

Corrosion directly affects the structural stiffness of a steel element, reducing the thickness, thus inertia, due to the gradual deterioration of the material. Quickly identifying corrosion damage to the stiffness of a steel structure is a challenge in coastal environments since corrosion progresses rapidly, and traditional methods of inspection and diagnosis are time-consuming and costly. This is an important issue; therefore, characterization of the corrosion level represents a key element in making decisions regarding maintenance or structural integrity. This work estimates the relationship between the corrosion level in steel structures and their dynamic parameters using ambient vibration records. It comprises the characterization of the dynamic behavior and corrosion state of three full-scale pedestrian bridges with similar geometry, material, and structural configuration characteristics but with significant differences in the degree of deterioration. The structures were instrumented with piezoelectric sensors connected to a portable data acquisition system; the recorded information was analyzed with optimization algorithms in Python based on the power spectral density (PSD) of the vibrations of each bridge. The parameters obtained related to the degree of corrosion determine the incidence of the level of deterioration in the structural behavior, thus involving changes in its stiffness and mass.

 Artículos similares

       
 
Utkarsh Bhardwaj, Angelo Palos Teixeira and C. Guedes Soares    
This paper assesses the uncertainty of the partial safety factors for the design of corroded pipelines against burst failure due to the variability associated with the strength model selection. First, 10 calibrated burst pressure prediction models for co... ver más

 
Zhangping You, Haiyang Yuan and Xiaoping Ye    
Titanium alloys are extensively utilized in the aerospace industry due to their exceptional properties, encompassing high specific strength and corrosion resistance. Nevertheless, these alloys present inherent challenges as difficult-to-machine materials... ver más
Revista: Coatings

 
Aurel Mihail Titu, Sandor Ravai-Nagy and Alina Bianca Pop    
A key element in ensuring the service life and strength of aluminum alloys in many industrial applications is the adhesion of anti-corrosion coatings. The aim of this study is to analyze how coating processes affect the adhesion of anti-corrosion coating... ver más
Revista: Coatings

 
Zhong Xiao, Teng Ma, Hongwei Wang, Feng Bian, Haifeng Jin, Tengjiao Yu, Wei Zhang, Pan Hu and Jinhui Li    
Since concrete is cheaper and more resistant to corrosion than steel, the wide-shallow concrete bucket foundation is being used extensively in ocean engineering. By adding the inner bucket and cruciform skirts, both the bearing capacity and rigidity of t... ver más

 
Fangyuan Wang, Renhua Wang and Jianjun Ju    
H-section columns with random pitting corrosion exhibit localized damage, making it imperative to conduct a thorough assessment in order to guarantee their long-term structural safety and integrity. This paper presents a method for constructing finite el... ver más
Revista: Applied Sciences