CRACK ANALYSIS OF CFRP REINFORCED CONCRETE BEAMS UNDER SECONDARY LOADING
DOI:
https://doi.org/10.14311/CEJ.2021.04.0061Keywords:
Carbon fiber reinforced polymer plates, Reinforced concrete beam, Average crack spacingAbstract
The paper established the calculation formulas on the average crack spacing and the maximum crack width of CFRP(Carbon Fiber Reinforced Polymer)reinforced concrete beam under the secondary loading. Conversion of CFRP plate area into the reinforcement ratio of the reinforced beam, the calculation formula on the average crack spacing of CFRP reinforced concrete beam under the secondary loading was established. On basis of the calculation formula on the maximum crack width of concrete beam, the calculation formula on the maximum crack width of CFRP reinforced concrete beam under the secondary loading was established. The average crack spacing and the maximum crack width calculated by the formulas in the paper were compared with the test data, it was verified that the formula is correct.
Downloads
References
Cheng DH, Ye X, Zhang LB. (2013), “Research of mechanical properties on loaded concrete beam reinforced with prestressed CFRP plate” China Civil Engineering Journal, (S1): 319-328.
China Association for Engineering Construction Standardization. (2003), “Technical specification for strengthening concrete structures with carbon fiber reinforce polymer laminate (CECS 146:2003)” China Planning Press.
Triantafillou T, Matthys S, Audenaert K, et al. (2001), “Externally bonded FRP reinforcement for RC structures” International Federation for Structural Concrete (fib).
440 ACI C. (2004), “Guide for the design and construction of externally bonded FRP systems for strengthening concrete structures” American Concrete Institute.
Liu XP, Guo C. (2014), “Finite element analysis of reinforce RC beams considering loading history with Pre-Stressed CFRP plates” Advanced Materials Research, v 1025-1026, p 862-867.
Cheng J, Wang RH, Jia B. (2011), “Finite-element analysis for CFRP reinforced old RC beam under secondary loading” Advanced Materials Research, v 243-249, p 5531-5535.
Jiang SH, Hou JG, He YM. (2015), “Reliability research of serviceability limit states for RC beams strengthened with prestressed CFRP plates considering prestress loss” China Civil Engineering Journal ,(11):36-43.
Wang MR. (2013), “Calculation of flexural bearing capacity of reinforced concrete beams strengthened with CFRP plates considering under secondary loading” Journal of China & Foreign Highway,(06):102- 106.
Zhuang JB, Ye LP, Bao YZ, Wu YB. (2006), “Crack width of reinforced concrete beams strengthened with CFRP plates” Journal of Southeast University (Natural Science Edition), (01):86-91.
Ministry of Construction of China (2010), “GB 50010-2010. Design Code for Concrete Structure” China Architecture & Building Press.
TAN J, ZHENG WZ, WANG Y. (2010), “Calculation method of creak width of concrete beams strengthened with CFRP sheet” Journal of Harbin Institute of Technology, (02): 180-185.
Li ZJ. (2006), “Testing Research and Numerical Analysis on Flexural Behaviors of CFRP Strengthened Reinforced Concrete Beams Under Secondary Load” Master Dissertation of Zhengzhou University.
Huang N. (2015), “The Research of Flexural behaviors of RC beams Strengthened with CFRP under Secondary Loading” Master Dissertation of Ningbo University.
BU LT, SONG L, SHI CX. (2007), “Experimental and theoretical study on flexural behavior of RC beams strengthened with carbon fiber plates (CFP)” Journal of Building Structures,(01):72-79.
LU XZ, TENG JG, YE LP, JIANG JQ. (2006), “Finite Element Analysis of Intermediate Crack-Induced Debonding in FRP Strengthened RC Beams” Engineering Mechanics, (06):85-93.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2021 Stavební obzor - Civil Engineering Journal
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).