Non-linear analyses of cover plate of caisson
| Autor: | Chi-Ju Chen, 陳即如 |
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| Rok vydání: | 2005 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 93 In this thesis, the finite element method was adopted for non-linear analyses of a cover plate of caisson. The size of the cover plate of caisson is assumed to be constant. The ultimate bearing capcity of cover plate and load-deflection relationship were investigated under vertical and trapezoid loading by displacement with different column size,i.e., shear-span to depth ratios. The shear-span to depth ratios decrease as the size of the pier column, loading area, increased, under the same size of the cover plate of caisson.The results of FE-analysis show that the deflection in the loading surface reduces and bearing capcity of cover plate increases as shear-span to depth ratio decreases under ultimate loading. The ultimate bearing capcity of the cover plate of caisson calculated by the current flexure design formulas is less than that calculated by the ACI 318-02 code formulas based on punching shear, the strut-and-tie model for deep beam, and the results of DIANA program analyses. According to design of the current flexure formulas, the cover plate of caisson is too conservative. It is not necessary to be strength for cover plate due to the improvement of the design code. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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