Issue 46

H. Zhu et alii, Frattura ed Integrità Strutturale, 46 (2018) 361-370; DOI: 10.3221/IGF-ESIS.46.33 361 Stress performance of embedded carbon fiber reinforced plastics plate consolidated reinforced concrete structure Hua Zhu School of Civil Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu, 224051, China huazhu74@126.com A BSTRACT . With the development of the building industry, various novel building materials have emerged. Modern buildings requires higher on performance of building materials, and the performance of old buildings has not been able to keep up the pace of the times. Extending the service time of old buildings by repairing and reinforcing is inevitable. In this study, 10 reinforced concrete beams including 2 ordinary reinforced concrete beams and 8 carbon fiber reinforced plastics (CFRP) plate reinforced test beams were manufactured. Three-dimensional finite element model was established using finite element software to simulate and compare the stress performance of the strengthening beams with different number of CFRP plate, size, number of groove and shear span ratio. The results demonstrated that the ultimate carrying capacity of the embedded CFRP plate reinforced beams was obviously superior to that of the ordinary reinforced concrete beams; two plates and two grooves were appropriate; the larger the shear span ratio, the better the bearing performance and the smaller the deformation. CFRP plate consolidated reinforced concrete can effectively stabilize buildings which need repairing and reinforcement. K EYWORDS . CFRP plate consolidation; Reinforced concrete; Three- dimensional finite element model; Stress performance. Citation: Zhu, H., Stress performance of embedded carbon fiber reinforced plastics plate consolidated reinforced concrete structure, Frattura ed Integrità Strutturale, 46 (2018) 361-370. Received: 25.07.2018 Accepted: 12.09.2018 Published: 01.10.2018 Copyright: © 2018 This is an open access article under the terms of the CC-BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. I NTRODUCTION ith the acceleration of urbanization, the performance of many old buildings has not been able to satisfy the requirements of the society. Therefore reinforcement is needed to recover their performance. The emergence of novel building materials provides a better choice for building reinforcement. Fiber reinforce plastic (FRP) has favorable mechanical performance and corrosion resistance performance. Embedded Carbon Fiber Reinforced Plastics (CFRP) plate reinforcement is a prospective method in the reinforcement of reinforced concrete beams. Motavalli et al. [1] made multi-aspect studies on the development of CFRP plate in the field of concrete. They developed W