| 種別 | paper |
| 主題 | Experimental Study on Transfer Length of Pretension Concrete Members with Various FRP Rods |
| 副題 | |
| 筆頭著者 | M.KHIN（Kagoshima University） |
| 連名者1 | Susumu MATUMOTO（Kagoshima University） |
| 連名者2 | Kohji TAKEWAKA（Kagoshima University） |
| 連名者3 | |
| 連名者4 | |
| 連名者5 | |
| キーワード | |
| 巻 | 15 |
| 号 | 2 |
| 先頭ページ | 1243 |
| 末尾ページ | 1248 |
| 年度 | 1993 |
| 要旨 | INTRODUCTION Recently, many researches have been made on FRP rods for reinforcement of reinforced and prestressed concrete structures.Last year,the symposium on the advancement of concrete structures using FRP rods was held in Tokyo by JSCE.The authors submitted a paper on transfer lengths of FRP rods as a problem of anchorage of pretensioned prestressed concrete structures.The paper included 14 types of FRP rods made from fibers of carbon,aramid,glass and vinylon.The past experiments were carried out on single specimen of each FRP rod.So,more experimental data are needed to conclude the exact transfer lengths of each FRP rod.The authors have continued this kind of research,that is ゛Transfer lengths" to accumulate more data.This present research was made on 12 types of FRP rods from the last year's list and focused on the comparative study between last and this year's one.In addition to transfer lengths of each FRP rod,this present paper includes also the transfer length occurring at cutting pretensioned precast concrete member off.And more the effective prestress of this kinds of structures was examined.Finally,the minimum cover thickness of concrete for FRP rods was examined experimentally. CONCLUSIONS This on-going research utilized previous data and comparison was made with the present data.From the experiment it was found that the former and the later data agreed well.The deformations and different types of material used in FRP rods have minimal influence on the transfer lengths.In the cut-off test,the transfer lengths of carbon,glass and aramid rods are 18-20,φ 23 φ and 25-32 φ,respectively.Some experiments rods showed the level lengths.90,The effective 79-88Z,78-87 The minimum experimentally for on of multilevel prestressing prestress of the prestressing had minimum to aramid influence retained on carbon,aramid and initial prestress,respectively.cover thickness vinylon,glass,of aramid and to carbon FRP the transfer glass concrete required and carbon FRP rods were were 75-obtained. |
| PDFファイル名 | 015-01-2210.pdf |