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Identifying Significant Parameters of the US Bridges

Authors:
Prasad Chetti
Hesham Ali

Keywords: Average Daily Traffic (ADT), National Bridge Inventory (NBI) dataset, Deterioration Rates

Abstract:
Various bridge parameters, either alone or in combination with other parameters, significantly affect the performance of the bridge decks in various regions. Identifying such parameters and/or their interaction effects allows the bridge authorities to understand and assess the bridge decks’ performance in different regions. This paper analyzes 1,732 same-age US bridges from the national bridge inventory dataset with respect to various independent parameters along with bridge deck condition rating as the dependent parameter. The Kruskal-Wallis test was performed on these bridge decks for various independent parameters. Multiple pairwise comparisons between groups were also performed using the Wilcoxon test. Results show that material, design, and region affect the deck condition ratings of the bridges both individually and while interacting with each other. Further, it is observed that bridges made of concrete material with stringer multi-beam girder design, and which reside in the Highplains region perform the worst, whereas the prestressed concrete bridges with the same design and which reside in the same region perform the best.

Pages: 13 to 17

Copyright: Copyright (c) IARIA, 2022

Publication date: June 26, 2022

Published in: conference

ISSN: 2519-8459

ISBN: 978-1-61208-964-5

Location: Lisbon, Portugal

Dates: from June 26, 2022 to June 30, 2022