Weight estimation on static B-WIM algorithms: A comparative study. (1st November 2019)

• Record Type: Journal Article
• Authors: Carraro, Felipe; Gonçalves, Matheus Silva; Lopez, Rafael Holdorf; Miguel, Leandro Fleck Fadel; Valente, Amir Mattar
• Is Part Of: Engineering structures. Volume 198(2019)
• Publication Date: 2019-11-01
• Subjects: Bridge weigh-in-motion -- Vehicle weight prediction -- Methods comparison -- Inverse problems -- Statistical assumptions; Structural engineering -- Periodicals; Structural analysis (Engineering) -- Periodicals; Construction, Technique de la -- Périodiques; Génie parasismique -- Périodiques; Pression du vent -- Périodiques; Earthquake engineering; Structural engineering; Wind-pressure; Periodicals; 624.105
• DOI: 10.1016/j.engstruct.2019.109463
• Languages: English
• ISSNs: 0141-0296

Abstract

Highlights: Different methods were theoretically analyzed by their statistical background. These methods were evaluated experimentally using real-world data signals. The evaluated methods performed similarly for both considered bridges. Trends in methods comparison were observed as a function of the model suitability. Abstract: Bridge weigh in motion (B-WIM) comprises the use of sensors on existing bridges in order to assess the loads of passing vehicles. Although numerous methods for weight estimation on static B-WIM algorithms may be found in the literature, there is not available a comparison study among them, especially regarding accuracy and statistical assumptions. Hence, this paper provides a critical comparison on a subset of conceptually similar B-WIM methods, further extending the discussion on their theoretical assumptions, beyond what is currently available in literature. The methods are not only referenced but reinterpreted and reformulated in a unifying manner, allowing an in-depth comparison. Moreover, a parametric study on the performance and sensitivity of methods is conducted. Not only simulated but also real data are employed in the comparison, supporting conclusions.