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Bond Studies of High-Strength Concrete Joints Confined with Stirrups,Steel Fibers, or Fiber-Reinforced Polymer Sheets
| 题名： | Bond Studies of High-Strength Concrete Joints Confined with Stirrups,Steel Fibers, or Fiber-Reinforced Polymer Sheets |
| 正文语种： | 英文 |
| 作者： | Bilal S. Hamad;Elias Y. Abou Haidar |
| 作者单位： | American Univ, of Beirut |
| 关键词： | Reinforced concrete; High-strength concrete; Bond (concrete to reinforcement); Beam-column joints; Hooked-bar anchorages; Confinement; Fiber-reinforced polymers; Steel fibers; Transverse reinforcement; Concrete and masonry structures |
| 摘要： | The paper presents a correlation study of the results of three research programs conducted on hooked bars anchored in high-strength concrete (HSC) beam-column joints at the American University of Beirut (AUB). The specimen simulated the rigid connection of a cantilever beam to a column. In two previous programs, the beam-column joint was confined either externally with carbon fiber-reinforced polymer (CFRP) sheets or internally by steel fibers incorporated in the concrete mix. Although stirrups were included in the beam and column eleme nts of the spec i me ns of the two programs, the colum n stiirups were not extended in the beam-column joint. It was necessary to conduct a third program where confinement of the joint was provided internally by stirrups crossing the critical hooked bars region. Results of the three programs indicated positive effect of the different confining modes on bond strength of the anchored bars and ductility of the load-defiection history. Comparison of the results of the three programs is presented. DOI: 10.106l/(ASCE)ST.1943-541X.0001347. © 20/5 American Society of Civil Engineers. |
| 出版日期： | 2016.01 |
| 出版年： | 2016 |
| 期刊名称： | Journal of Structural Engineering |
| 卷： | Vol.142 |
| 期： | NO.01 |
| 页码： | 04015098 |
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