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Article type: Research Article
Authors: Thulaseedharan, Nandhu Pillay | Yarnold, Matthew Thomas; *
Affiliations: Texas A&M University, Zachry Department of Civil Engineering, TAMU College Station, TX, USA
Correspondence: [*] Corresponding author. Matthew Thomas Yarnold, PhD, PE, Texas A&M University, Zachry Department of Civil Engineering, 3136 TAMU College Station, TX, 77845, USA. Tel.: +1 979 862 5659; E-mail: myarnold@tamu.edu.
Abstract: Autonomous truck platoons shall soon be traveling our highway system with greater frequency. The objective of the presented study is to conduct a high-level evaluation of the Texas concrete bridge inventory when subjected to potential truck platoon loading. The National Bridge Inventory (NBI) database is utilized to the greatest extent possible. In addition, a significant literature review is performed to make assumptions allowing estimated load rating calculations for the prestressed concrete bridges likely to support future platoons (nearly 3,000 bridges). The truck platoon load ratings, combined with the NBI structural evaluation condition ratings, are utilized to prioritize each bridge. As a result, bridges are identified for more detailed evaluation prior to future truck platoon implementation. Data analysis was also performed to further understand the impact of various parameters on the load rating and prioritization results. Conclusions were drawn regarding the sensitivity of the (1) original design methodology, (2) bridge span length, (3) truck type, (4) truck spacing and (5) number of trucks within a platoon. In addition, a secondary benefit of the study is a presented framework for other bridge owners to prioritize their bridges that may be subjected to truck platoon or other heavy vehicle loading.
Keywords: Bridge, truck, platoon, prioritization, autonomous, live load, load rating
DOI: 10.3233/BRS-210181
Journal: Bridge Structures, vol. 16, no. 4, pp. 155-167, 2020
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