Mechanical Properties of Concrete Cylinders Confined with CFRP Sheets Subjected to Axial Compression
LIANG Meng,DONG Wei,YI Fu-min and WU Zhi-min
DOI:10.11835/j.issn.1674-4764.2010.06.007
Received January 18, 2010,Revised , Accepted , Available online July 01, 2015
Volume ,2010,Pages 36-41
- Abstract
Based on Drucker-Prager criterion with non-associated flow rule, numerical analysis of mechanical properties of concrete cylinders were carried out by using non-linear finite element method. The effect caused by various parameters such as wrap thickness, fiber orientation and concrete strength on axial mechanical properties of concrete cylinders is discussed. The results show that the results calculated by non-associated flow rule conform to that in the test. It is demonstrated that there is significant enhancement both in compressive strength and ductility of cylinders with the increase of wrap thickness. Moreover, the gain in axial compressive strength is observed to be higher for lower strength concrete and be highest in the cylinders wrapped with the hoop orientation.