| 英文摘要 |
The post-tensioned seismic building systems have the advantage of self-centering after the effects of earthquake ground accelerations, and thereby eliminate permanent drift and reduce the possibility of being demolished after an earthquake. Therefore, it has attracted significant attention in the field of structural engineering research and practice. Nevertheless, researches on this structural system are still rather limited, especially in Taiwan. This project is therefore launched, inviting researchers and engineers to systematically investigate this structural system considering the related research findings in the US, Japan, and New Zealand. The primary objective of the project is to implement the post-tensioned seismic structural systems in earthquake building engineering and real practice in Taiwan buildings. This year, which is the first stage, the main issues are focused on the seismic behaviors of the post-tensioned beam-column joints with different materials, including the post-tensioned RC beam-to-RC column joints, the post-tensioned steel beam-to-CFT column joints, and the post-tensioned steel beam-to-RC column joints. Besides, in order to improve the insufficient energy dissipation of the post-tensioned structural systems, varieties of energy-dissipating devices were proposed and tested in the specimens. In addition to the experimental investigations, analytical approaches were employed to grasp the earthquake responses of the structural components and systems. It was expected that through this project, related researches on this new structural system could be coordinated efficiently. |
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