| Summary: | 碩士 === 國立中央大學 === 土木工程研究所 === 90 ===
Load Carrying Capacity Evaluation and Strengthening of Existing Bridge Passed by Heavy-Duty Vehicles
Keywords：Bridge, Load Carrying Capacity Evaluation, Strengthening
Abstract
The Load of heavy-cargo transportation is usually larger then the design loading capacity of bridges structures. Therefore, for the purpose of avoiding bridge damage and maintaining public security, a measure concerning about transportation routes, traffic control, and bridge safety must be drawn up before transporting heavy-duty Vehicles.
The substance of this thesis is to explore the issue of bridge structure safety while overloaded vehicles are delivered through bridges and then propose solutions to correlative problems. All vehicle-delivering cases in this thesis including Taoyuan Kuo-Kuang Power Plant, Jiayi Chia-Hui Power Plant, and Tainan Feng-Der Power Plant are commissioned by the Sea & land Integrated Corporation to conduct bridge loading capacity analysis and strengthening design.
Two ways of strengthening are Full-Bridge-Span Crossing Method and Support-Shortened-Span Crossing Method. As for loading capacity evaluation, both Working Stress Design Method and Ultimate Strength Design Method are adopted. The bridge loading capacity evaluation and strengthening methods of each bridge are processed in accordance with sequences of vehicles conveyed to power plants.
At the end of this thesis, a bridge loading evaluation table and a suggestion of bridge loading capacity evaluation flow chart are proposed for reference in practical bridge construction projects.
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