Simple Procedure for Load Rating Reinforced Concrete Slab Bridges without Plans

Cuaron, Alain M.; Jáuregui, David V.; Weldon, Brad D.

doi:10.1061/(asce)cf.1943-5509.0001476

Cited by 3 publications

(7 citation statements)

References 4 publications

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“…Furthermore, load tests can provide information necessary to guide inspections, improve asset management, and identify best repair practices. Load testing is also an effective method for determining load ratings for bridges without plans (Aguilar et al, 2015(Aguilar et al, , 2018Cuaron et al, 2017). Diagnostic load testing provides an initial measure of the load effects (i.e., moment, shear, deflection, load distribution) in the structure due to applied loads (Phares et al, 2005) and provides a means to identify critical components or load paths for further investigation.…”

Section: Field Testingmentioning

confidence: 99%

Field Testing of a Prestressed Concrete Bridge With High Performance and Locally Developed Ultra-High Performance Concrete Girders

Alahmari

Kennedy²,

Cuaron

et al. 2019

Front. Built Environ.

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Recent research has developed mixture proportions for ultra-high performance concrete (UHPC) using materials primary local to New Mexico, United States of America (USA). In 2017, a two-span bridge was constructed in Anthony, New Mexico, USA consisting of prestressed girders using the locally developed non-proprietary UHPC, for span one, and high performance concrete (HPC), for the second span. Field tests were conducted on the bridge ∼9 months apart to investigate the performance and behavior of the UHPC and provide baseline data for future studies and condition evaluation of the bridge. The load tests consisted of various load configurations utilizing up to four trucks weighing 267 kN on average. The load paths were designed to maximize strains along the length of the bridge and investigate transverse load distributions between girders. The measured results provide a comparison of the behavior and performance of the UHPC and the HPC girders and were also compared to the American Association of State Highway and Transportation Officials (AASHTO) predicted behaviors. This study is one of the first that compares HPC and non-proprietary UHPC bridge performance subjected to the same environmental conditions and vehicular loading. The findings of the study will aid in the development of recommendations incorporating UHPC into design provisions as well as provide meaningful information of the short and long-term performance between the two materials including durability and load distribution.

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Section: Field Testingmentioning

confidence: 99%

Field Testing of a Prestressed Concrete Bridge With High Performance and Locally Developed Ultra-High Performance Concrete Girders

Alahmari

Kennedy²,

Cuaron

et al. 2019

Front. Built Environ.

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“…In a survey (Cuaron et al, 2017) submitted to the fifty state Departments of Transportation (DOTs) information was requested regarding their load rating procedures for bridges without plans. About 52% of those who responded indicated that they conduct load tests; diagnostic test being the most common.…”

Section: Load Rating Through Load Testingmentioning

confidence: 99%

“…The use of Windsor Probe testing combined with a Ferroscan nondestructive testing system for the load rating of reinforced concrete slab bridges without plans was investigated by Cuaron et al (2017). The concrete strength was estimated using the Windsor Probe and the rebar size, spacing, cover, and length were estimated using a Ferroscan system.…”

Section: E All~0mentioning

confidence: 99%

“…The concrete strength was estimated using the Windsor Probe and the rebar size, spacing, cover, and length were estimated using a Ferroscan system. The authors reported that the Ferroscan system was not very effective in determining the rebar size where the concrete cover was three inches or more, usually top reinforcing steel for concrete slab bridges (Cuaron et al, 2017). Instead, the reinforcement was estimated based upon historical ratio of top to bottom area of reinforcing steel per linear foot.…”

Section: E All~0mentioning

confidence: 99%

“…Overall, the results showed that on average there was an increase of 16% on the load ratings when using the measured concrete compressive strength obtained from the Windsor Probe testing. In addition, the authors claimed that that the use of basic nondestructive testing along with the implementation of simple structural analysis techniques proved to be an effective method for estimating the load-carrying capacity of reinforced concrete slab bridges without plans (Cuaron et al, 2017).…”

Section: E All~0mentioning

confidence: 99%

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Bridge Load Rating

Armendariz¹,

Bowman²

2018

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Thanks are also extended to Mr. Xiao Zhang, who assisted with the evaluation and analysis of the multi-plate arch structure as part of his summer research experience, and to Mr. Stefan Leiva, who assisted with the installation of strain gages on the Doan's Creek Bridge. Special thanks are extended to Tim Wells, who worked tirelessly to assist the research team on site visits to various bridges and even helped with of the Doan's Creek field site measurements. We would also like to recognize the many personnel and staff in both the Crawfordsville District and Vincennes District who provided assistance with the Roaring Creek and Doan's Creek bridge load tests. Without their help the load tests could not have been conducted.

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