| 種別 | paper |
| 主題 | Crack Surface Asperity on Stress Transfer Mechanism |
| 副題 | |
| 筆頭著者 | Buja BUJADHAM （University of Tokyo） |
| 連名者1 | Akihiko FUJlYOSHI （University of Tokyo） |
| 連名者2 | Koichi MAEKAWA （University of Tokyo） |
| 連名者3 | |
| 連名者4 | |
| 連名者5 | |
| キーワード | |
| 巻 | 11 |
| 号 | 2 |
| 先頭ページ | 649 |
| 末尾ページ | 654 |
| 年度 | 1989 |
| 要旨 | Introduction The so-called "Contact density model" based on the idealization of crack surface developed by B. Li and K. Maekawa is path dependent model which can be well applied to normal concrete subjected to monotonic,non-monotonic and reversed cyclic loading paths. However,in concrete with different shape of crack surface from that of normal concrete e.g.. high-strength or light weight concrete,the applicability is still questionable. We carried out stress transfer experiment on high strength and light weight concrete and applied the model to these concrete in order to clarify applicable range of the model. Loading paths which are concerned in this report are crack width constant monotonic loading paths. CONCLUSION The original contact density model which is well applied to stress transfer problems of normal concrete subjected to monotonic,non-monotonic and reversed cyclic loading paths was found to be imperfect when applied to high strength/light weight concretes even under monotonic loading paths with constant crack width. It was found that the three assumptions of the original model need to be modified to more realistic ones for further applications of the model. |
| PDFファイル名 | 011-01-2109.pdf |