Aiming for rational design and maintenance management of bridges.
Social Infrastructure (Saitama University Research Seed Collection 2025-27 p.16)
Keywords: Structural analysis, bridge design, seismic isolation bearings, reliability design, evaluation of existing bridges.
We are conducting research on the following topics related to bridges: (1) Research on bridge design methods (2) Research on rational decision-making methods for safety factors in bridge design (3) Evaluation of the safety of existing bridges and examination of the necessary safety levels (4) Research on redundancy and vulnerability for bridge maintenance management (5) Development of seismic design models for rubber bearings used in bridges and research on temperature dependence To the general public, bridges may seem to undergo little change, but the materials used, design methods, structural forms, and maintenance management techniques have been rapidly evolving since the 2000s. In terms of materials, high-performance steel and carbon fiber reinforced plastics have started to be used. Moreover, domestic bridge design methods are currently in a state of transition. Therefore, we are focusing our research on the development of next-generation design methods and maintenance management techniques.
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basic information
Yoshiaki Okui, Professor Graduate School of Science and Engineering, Department of Environmental Social Infrastructure, Field of Social Infrastructure Creation 【Recent Research Themes】 ● Reinforcement and repair of steel bridges using carbon fiber reinforced plastic (CFRP) ● Examination of traffic loads for the maintenance and management of bridges ● Study of evaluation methods for the load-bearing capacity of precast concrete slab composite girders
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Applications/Examples of results
【Appeal Points to the Industry】 ●My area of expertise is research on design methods for steel structures. 【Examples of Practical Application, Utilization, and Use Cases】 ●The methods proposed in the large-scale renewal project of the East Japan Expressway are partially being used.
Detailed information
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Analysis of the system redundancy of the girder bridge (area of the deck slab with damage)
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The Saitama University Open Innovation Center is a center that functions as a liaison office for industry-academia-government collaboration. It consists of three departments: the Industry-Academia-Government Collaboration Department, the Intellectual Property Department, and the Startup Support Department, each staffed with coordinators well-versed in various fields. The center's activities include solving technical challenges in companies, supporting the implementation of joint research, and conducting technology transfer aimed at introducing and utilizing Saitama University's intellectual property.
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