| Author: | Zhang, Zhicheng |
| Title: | Analytical modeling of self-stressed steel fiber reinforced concrete encased steel penstock subjected to internal water pressure |
| Degree: | M.Sc. |
| Year: | 2010 |
| Subject: | Hong Kong Polytechnic University -- Dissertations Penstocks -- Design and construction Penstocks -- Mathematical models. Reinforced concrete -- Mathematical models. |
| Department: | Department of Civil and Structural Engineering |
| Pages: | vi, 82 leaves : ill. ; 30 cm. |
| Language: | English |
| Abstract: | Reinforced concrete (RC) encased steel penstocks (RC-ESPs) are usually laid on the downstream surfaces of dams. In order to control the crack, steel fiber reinforced concrete (SFRC) and self-stressed steel fiber reinforced concrete (SS-SFRC) can be introduced to replace conventional concrete in the exterior RC walls because of their excellent performance in tension. Up to now, there is no well-recognized design method for reinforced concrete encased steel penstocks (RC-ESPs). Furthermore, research on steel fiber reinforced concrete encased steel penstocks (SFRC-ESPs) and self-stressed steel fiber reinforced concrete encased steel penstocks (SS-SFRC-ESPs) is much more limited. This dissertation, therefore, presents an explicit model to predict the structural performances of SFRC-ESPs and SS-SFRC-ESPs for both serviceability and safety design. The structural performances mainly consist of the stress/strain conditions of the encased steel penstock and the steel reinforcements, the radial displacement and crack width of exterior concrete wall in SFRC-ESPs and SS-SFRC-ESPs under internal water pressure. The results predicted by the new approach model agree well with the experimental results. As a conclusion, the new method provides a reasonable, effective and accurate prediction of structural performances of SFRC-ESPs and SS-SFRC-ESPs. |
| Rights: | All rights reserved |
| Access: | restricted access |
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| File | Description | Size | Format | |
|---|---|---|---|---|
| b23604384.pdf | For All Users (off-campus access for PolyU Staff & Students only) | 1 MB | Adobe PDF | View/Open |
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