Comparison of Strength and Ultimate Strain Models of Concrete Columns Confined with FRP |
| |
作者姓名: | HU Bo and WANG Jian guo |
| |
作者单位: | School of Civil Engineering, Hefei University of Technology, Hefei 230009, P. R. China;School of Civil Engineering, Hefei University of Technology, Hefei 230009, P. R. China |
| |
摘 要: | Based on maintaining the accuracy of existing models for circular specimens, revised models were proposed for predicting strength and ultimate strain of concrete columns confined with FRP with considering the effectiveness of confinement by cross section. An evaluation of existing strength and ultimate strain models of concrete columns confined with FRP was presented with extensive collection of experimental data. It was shown that the prediction of strength was more accurate than that of ultimate strain, among which the prediction of Gampione’s strength model and Lorenzis’s ultimate strain model were more accurate for all specimens and circular specimens, respectively. The comparison with experimental results and existing models showed that the proposed models were more accurate, simpler and more convenient. The proposed models can be used for the prediction of strength and ductility in practical engineering.
|
关 键 词: | concrete columns confined with FRP strength models ultimate strain models comparison improved models |
收稿时间: | 2009-05-10 |
|
| 点击此处可从《保鲜与加工》浏览原始摘要信息 |
|
点击此处可从《保鲜与加工》下载全文 |
|