Experimental research on the instantaneous and long-term deflections of pre-cracked concrete beams enhanced by carbon fibre reinforced polymer
This paper aims to disclose the influence law of cracks on instantaneous and long-term deflections of reinforced beam. For this purpose, four concrete beams were created, pre-loaded to varied degrees of cracking, and reinforced with carbon fibre reinforced polymer (CFRP). Then, a 300-day load test w...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Gruppo Italiano Frattura
2018-10-01
|
| Series: | Fracture and Structural Integrity |
| Subjects: | |
| Online Access: | http://www.gruppofrattura.it/pdf/rivista/numero46/numero_46_art_25.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841563761094164480 |
|---|---|
| author | Shiyong Jiang Shijuan Wu Weilai Yao |
| author_facet | Shiyong Jiang Shijuan Wu Weilai Yao |
| author_sort | Shiyong Jiang |
| collection | DOAJ |
| description | This paper aims to disclose the influence law of cracks on instantaneous and long-term deflections of reinforced beam. For this purpose, four concrete beams were created, pre-loaded to varied degrees of cracking, and reinforced with carbon fibre reinforced polymer (CFRP). Then, a 300-day load test was carried out on these samples to measure the instantaneous and long-term deflections. The experimental results show that the pre-cracking degree has little influence on instantaneous deflection; whether a beam is pre-cracked or intact, the final deflection of the beam is mostly affected by its initial deflection before the reinforcement; the pre-cracking degree is negatively correlated to the magnitude of additional deflection under sustained load. The research findings lay the basis for judging whether a reinforced beam can be used normally in the long run. |
| format | Article |
| id | doaj-art-514150a532b24f2da2d5786d1dd71127 |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2018-10-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-514150a532b24f2da2d5786d1dd711272025-01-02T23:37:42ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932018-10-01124627528410.3221/IGF-ESIS.46.2510.3221/IGF-ESIS.46.25Experimental research on the instantaneous and long-term deflections of pre-cracked concrete beams enhanced by carbon fibre reinforced polymerShiyong JiangShijuan WuWeilai YaoThis paper aims to disclose the influence law of cracks on instantaneous and long-term deflections of reinforced beam. For this purpose, four concrete beams were created, pre-loaded to varied degrees of cracking, and reinforced with carbon fibre reinforced polymer (CFRP). Then, a 300-day load test was carried out on these samples to measure the instantaneous and long-term deflections. The experimental results show that the pre-cracking degree has little influence on instantaneous deflection; whether a beam is pre-cracked or intact, the final deflection of the beam is mostly affected by its initial deflection before the reinforcement; the pre-cracking degree is negatively correlated to the magnitude of additional deflection under sustained load. The research findings lay the basis for judging whether a reinforced beam can be used normally in the long run.http://www.gruppofrattura.it/pdf/rivista/numero46/numero_46_art_25.pdfCarbon fibre reinforced polymer (CFRP) Pre-cracked beams Creep Long-term deflection |
| spellingShingle | Shiyong Jiang Shijuan Wu Weilai Yao Experimental research on the instantaneous and long-term deflections of pre-cracked concrete beams enhanced by carbon fibre reinforced polymer Fracture and Structural Integrity Carbon fibre reinforced polymer (CFRP) Pre-cracked beams Creep Long-term deflection |
| title | Experimental research on the instantaneous and long-term deflections of pre-cracked concrete beams enhanced by carbon fibre reinforced polymer |
| title_full | Experimental research on the instantaneous and long-term deflections of pre-cracked concrete beams enhanced by carbon fibre reinforced polymer |
| title_fullStr | Experimental research on the instantaneous and long-term deflections of pre-cracked concrete beams enhanced by carbon fibre reinforced polymer |
| title_full_unstemmed | Experimental research on the instantaneous and long-term deflections of pre-cracked concrete beams enhanced by carbon fibre reinforced polymer |
| title_short | Experimental research on the instantaneous and long-term deflections of pre-cracked concrete beams enhanced by carbon fibre reinforced polymer |
| title_sort | experimental research on the instantaneous and long term deflections of pre cracked concrete beams enhanced by carbon fibre reinforced polymer |
| topic | Carbon fibre reinforced polymer (CFRP) Pre-cracked beams Creep Long-term deflection |
| url | http://www.gruppofrattura.it/pdf/rivista/numero46/numero_46_art_25.pdf |
| work_keys_str_mv | AT shiyongjiang experimentalresearchontheinstantaneousandlongtermdeflectionsofprecrackedconcretebeamsenhancedbycarbonfibrereinforcedpolymer AT shijuanwu experimentalresearchontheinstantaneousandlongtermdeflectionsofprecrackedconcretebeamsenhancedbycarbonfibrereinforcedpolymer AT weilaiyao experimentalresearchontheinstantaneousandlongtermdeflectionsofprecrackedconcretebeamsenhancedbycarbonfibrereinforcedpolymer |