Behavior of fiber-reinforced polymer-strengthened reinforced concrete beams under static and impact loads
This study investigates the behavior of fiber-reinforced polymer-strengthened reinforced concrete beams under static and impact loads. The experimental program includes six beams tested in static loads and seven beams tested against impact loads. Longitudinal fiber-reinforced polymer strips and fibe...
| Main Authors: | , |
|---|---|
| Format: | Journal Article |
| Published: |
Multi-Science Publishing Co. Ltd.
2017
|
| Online Access: | http://hdl.handle.net/20.500.11937/53722 |
| _version_ | 1848759212166873088 |
|---|---|
| author | Pham, Thong Hao, Hong |
| author_facet | Pham, Thong Hao, Hong |
| author_sort | Pham, Thong |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | This study investigates the behavior of fiber-reinforced polymer-strengthened reinforced concrete beams under static and impact loads. The experimental program includes six beams tested in static loads and seven beams tested against impact loads. Longitudinal fiber-reinforced polymer strips and fiber-reinforced polymer U-wraps were used to strengthen these beams. The section of four beams was modified to have a curved soffit in order to reduce the stress concentration of fiber-reinforced polymer U-wraps and provide confinement effect on longitudinal fiber-reinforced polymer strips. The experimental results showed that the proposed modification significantly increased the beam capacities as compared to their rectangular counterparts strengthened with the same amount of fiber-reinforced polymer material. In addition, this article also provides explanations and discussions on the phenomenon of shifting of the flexure failure mode under static loads to the shear–flexure failure mode under impact loads of all the beams tested in the study, as well as the proper interpretations of the measured impact forces in the tests. From the experimental results, it is recommended that the impact force and inertial force at the very early stage of an impact event should be used to design the impact resistance. |
| first_indexed | 2025-11-14T09:56:17Z |
| format | Journal Article |
| id | curtin-20.500.11937-53722 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:56:17Z |
| publishDate | 2017 |
| publisher | Multi-Science Publishing Co. Ltd. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-537222017-10-05T01:46:50Z Behavior of fiber-reinforced polymer-strengthened reinforced concrete beams under static and impact loads Pham, Thong Hao, Hong This study investigates the behavior of fiber-reinforced polymer-strengthened reinforced concrete beams under static and impact loads. The experimental program includes six beams tested in static loads and seven beams tested against impact loads. Longitudinal fiber-reinforced polymer strips and fiber-reinforced polymer U-wraps were used to strengthen these beams. The section of four beams was modified to have a curved soffit in order to reduce the stress concentration of fiber-reinforced polymer U-wraps and provide confinement effect on longitudinal fiber-reinforced polymer strips. The experimental results showed that the proposed modification significantly increased the beam capacities as compared to their rectangular counterparts strengthened with the same amount of fiber-reinforced polymer material. In addition, this article also provides explanations and discussions on the phenomenon of shifting of the flexure failure mode under static loads to the shear–flexure failure mode under impact loads of all the beams tested in the study, as well as the proper interpretations of the measured impact forces in the tests. From the experimental results, it is recommended that the impact force and inertial force at the very early stage of an impact event should be used to design the impact resistance. 2017 Journal Article http://hdl.handle.net/20.500.11937/53722 10.1177/2041419616658730 Multi-Science Publishing Co. Ltd. fulltext |
| spellingShingle | Pham, Thong Hao, Hong Behavior of fiber-reinforced polymer-strengthened reinforced concrete beams under static and impact loads |
| title | Behavior of fiber-reinforced polymer-strengthened reinforced concrete beams under static and impact loads |
| title_full | Behavior of fiber-reinforced polymer-strengthened reinforced concrete beams under static and impact loads |
| title_fullStr | Behavior of fiber-reinforced polymer-strengthened reinforced concrete beams under static and impact loads |
| title_full_unstemmed | Behavior of fiber-reinforced polymer-strengthened reinforced concrete beams under static and impact loads |
| title_short | Behavior of fiber-reinforced polymer-strengthened reinforced concrete beams under static and impact loads |
| title_sort | behavior of fiber-reinforced polymer-strengthened reinforced concrete beams under static and impact loads |
| url | http://hdl.handle.net/20.500.11937/53722 |