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DEVELOPMENT OF STREAMLINING TECHNOLOGY FOR DECKS REMOVAL OF STEEL COMPOSITE GIRDER BRIDGES
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- YAMANE Takashi
- 極東興和株式会社 本社
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- SATO Hisafumi
- 極東興和株式会社 本社
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- YOSHITAKE Isamu
- 山口大学大学院 創成科学研究科
Bibliographic Information
- Other Title
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- 鋼合成桁橋のRC床版撤去の合理化技術
Description
<p> Renewal projects due to aging on expressways nationwide are intensifying. Among these, the deck replacement of bridges accounts for the majority of project costs. Particularly, the removal of the existing deck slab on steel composite girder bridges is labor-intensive and time-consuming. To improve this issue, element experiments were conducted to confirm the effectiveness of two rationalization techniques. Then, full-scale experiments were also conducted to verify the constructability of the selected technique based on the results of the element experiments. Initially, in the element experiments, it was confirmed that cutting the stud portions from the top surface of the deck with a large wall saw is highly effective. In full-scale experiments, it was confirmed that existing deck concrete can be removed block by block without breaking it, thus maintaining its shape. This technology has been successfully applied to a steel composite girder bridge on the expressway.</p>
Journal
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- Japanese Journal of JSCE
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Japanese Journal of JSCE 81 (1), n/a-, 2025
Japan Society of Civil Engineers
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Details 詳細情報について
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- CRID
- 1390021459405451520
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- ISSN
- 24366021
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
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- Abstract License Flag
- Disallowed