LOSS OF PRESTRESSING FORCE IN PRESTRESSED COUPLINGS AS A RESULT OF CREEP AND SHRINKAGE
| 项目名称： | LOSS OF PRESTRESSING FORCE IN PRESTRESSED COUPLINGS AS A RESULT OF CREEP AND SHRINKAGE |
| 摘要： | CRACKS OBSERVED RECENTLY IN THE JOINTS OF PRESTRESSED CONCRETE BRIDGES HAVE COMPLEX CAUSES. ONE POSSIBLE CAUSE IS THAT THE LOSS IN PRESTRESSING FORCE RESULTING FROM CREEP AND SHRINKAGE IN THE AREA OF THE COUPLING IS CONSIDERABLY GREATER THAN IT IS IN THE AREA OF THE NORMAL PRESTRESSING MEMBER, BECAUSE THE LINKED ANCHOR HAS A LARGER CROSS SECTION AND IS A DIFFERENT SHAPE. THE INTENTION IS TO EXAMINE THIS INFLUENCE BY COMPUTER STUDIES AND TESTS. |
| 状态： | Active |
| 资助组织： | BUNDESMINISTER FUER VERKEHR |
| 项目负责人： | KOENIG, G |
| 执行机构： | TECHNISCHE HOCHSCHULE DARMSTADT, INST. FUER MASSIVBAU (DARMSTADT TECHNICAL UNIVERSITY, INSTITUTE FOR MASSIVE CONSTRUCTION) |
| 开始时间： | 19770000 |
| 预计完成日期： | 19790000 |
| 主题领域： | Research；I24: Design of Bridges and Retaining Walls |
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