Analyzing the effect of rebar heating on bridge structures : surface temperature implications / by Pablo Andres Nunez Hernandez.

Author/creator Nunez Hernandez, Pablo Andres author.
Other author Gunerathne, Suranga, degree supervisor.
Other author East Carolina University. Department of Engineering.
Format Theses and dissertations
Publication[Greenville, N.C.] : [East Carolina University], 2024.
Description1 online resources (112 pages) : illustrations (chiefly color)
Supplemental ContentAccess via ScholarShip
Subjects

Summary This study presents a comprehensive simulation-based analysis aimed at enhancing the serviceability of bridge decks in cold climates by preventing ice formation through the application of an electrical power heat source (EPH) within transversal rebars. The objective is to identify the appropriate EPH capable of maintaining bridge surface temperatures above freezing under various climatic conditions. The study uses "Mean Minimum Temperature" data from the U.S. Climate Normals dataset (1991-2020) to ensure simulations are applicable across diverse regions. By systematically varying the power of the embedded heat source, the research identifies the minimum required EPH input to maintain the bridge deck surface at 3°C, preventing ice formation. Key findings indicate that the developed 3D FEA model effectively avoid ice formation on bridge surfaces by using an external electrical energy source connected to transverse steel rebars. Parameters such as outside temperature, wind speed, and EPH location significantly influence the performance of the heating system. A stress analysis confirms the feasibility of this method, providing guidelines for designers. The study concludes that maintaining a spacing of 12 inches (0.3048 meters) is optimal for the EPH placement and for ensuring structural integrity the EPH heat flow should not exceed 1.22kW.
General notePresented to the Faculty of the Department of Engineering
General noteAdvisor: Suranga Gunerathne
General noteTitle from PDF t.p. (viewed January 7, 2026).
Dissertation noteM.S. East Carolina University 2024.
Bibliography noteIncludes bibliographical references.
Technical detailsSystem requirements: Adobe Reader.
Technical detailsMode of access: World Wide Web.

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