|Table of Contents|

Flexural properties and influence factors of continuous RC beam strengthened with near-surface mounted mixing FRP tendons(PDF)

《交通运输工程学报》[ISSN:1671-1637/CN:61-1369/U]

Issue:
2015年02期
Page:
32-41
Research Field:
道路与铁道工程
Publishing date:

Info

Title:
Flexural properties and influence factors of continuous RC beam strengthened with near-surface mounted mixing FRP tendons
Author(s):
WANG Xing-guo1;  ZHU Kun-jia1;  ZHENG Yu-zhou2;  ZHENG Dan-dan1;  KOMURO M3
1. School of Civil Engineering, Henan Polytechnic University, Jiaozuo 454003, Henan, China; 2. School of Transportation, Southeast University, Nanjing 210096, Jiangsu, China; 3. Department of Civil Engineering and Architecture, Muroran Institute of Technology, Muroran 0508585, Hokkaido, Japan
Keywords:
bridge engineering;  continuous RC beam;  NSM;  mixing FRP tendons;  bearing capacity;  finite element method
PACS:
U445.72
DOI:
-
Abstract:
The flexural properties of four continuous reinforced concrete(RC)beams strengthened with near-surface mounted(NSM)mixing fiber reinforced polymer(FRP)tendons were studied by static test. The influence factors of bearing capacities of test beams were analyzed by finite element analysis(FEA)software, such as strength of concrete, initial load, elastic modulus and content of FRP tendons. Analysis result indicates that the reinforcement effect without debond between FRP tendons and concrete is significant. Compared with unstrengthened RC beam, the yield load and ultimate load of strengthened RC beam can increase by 31% and 56% respectively. When concrete strength, elastic modulus and content of FRP tendons increase, the yield load and ultimate load can increase by 38% and 17% respectively. When initial load increases, the yield load and ultimate load can decrease by 6% and 24% respectively. For test RC beams, the mean ratio of simulation and test values for the yield load is 0.969, 0.962 for the ultimate load, 1.104 for the midspan yield deflection, 1.024 for the midspan destructive deflection, and the trends of simulation load-deflection curves are basically consistent with test curves, so FEA result is in good agreement with test result, and FEA can accurately simulate the mechanical properties of test beam. 4 tabs, 18 figs, 22 refs.

References:

[1] 郭樟根,曹双寅,王安宝,等.爆炸荷载作用下外贴FRP加固钢筋混凝土双向板试验研究[J].建筑结构学报,2011,32(2):91-97.GUO Zhang-gen, CAO Shuang-yin, WANG An-bao, et al. Experimantal study on performance of FRP strengthened RC two-way slabs under explosion load[J]. Journal of Building Structures, 2011, 32(2): 91-97.(in Chinese)
[2] 邵劲松,薛伟辰,刘伟庆,等.FRP横向加固木柱轴心受压性能计算[J].土木工程学报,2012,45(8):48-54.SHAO Jin-song, XUE Wei-chen, LIU Wei-qing, et al. Calculation of axial compressive behavior of timber column laterally strengthened with FRP[J]. China Civil Engineering Journal, 2012, 45(8): 48-54.(in Chinese)
[3] 孙永梅,刘永军,孟宪宏.纤维增强复合材料(FRP)在砌体结构加固中的应用与研究进展[J].玻璃钢/复合材料,2012(1):77-82.SUN Yong-mei, LIU Yong-jun, MENG Xian-hong. Application and research progress of fiber reinforced plastics in masonry structure reinforcement[J]. Fiber Reinforced Plastics/Composites, 2012(1): 77-82.(in Chinese)
[4] ZORDAN T, BRISEGHELLA B, LIU T. Finite element model updating of a tied-arch bridge using Douglas-Reid method and Rosenbrock optimization algorithm[J]. Journal of Traffic and Transportation Engineering: English Edition, 2014, 1(4): 280-292.
[5] 贺学军,周朝阳,徐 玲.内嵌CFRP板条加固混凝土梁的抗弯性能试验研究[J].土木工程学报,2008,41(12):14-20.HE Xue-jun, ZHOU Chao-yang, XU Ling. Experimental study on the flexural behavior of reinforced concrete beams strengthened with near-surface mounted CFRP laminates[J]. China Civil Engineering Journal, 2008, 41(12): 14-20.(in Chinese)
[6] 曾宪桃,成香莉,高保彬.内嵌碳纤维增强塑料板条抗弯加固混凝土梁试验研究[J].工程力学,2008,25(12):106-113,122.ZENG Xian-tao, CHENG Xiang-li, GAO Bao-bin. Experimental study on flexural characteristics of RC beams strengthened with near-surface mounted CFRP laminates[J]. Engineering Mechanics, 2008, 25(12): 106-113, 122.(in Chinese)
[7] 黄丽华,李宇婧,张耀烨,等.不同种类FRP加固混凝土梁加固效果试验研究[J].大连理工大学学报,2013,53(1):102-107.HUANG Li-hua, LI Yu-jing, ZHANG Yao-ye, et al. Test research on strengthening effects of various FRP on RC beams[J]. Journal of Dalian University of Technology, 2013, 53(1): 102-107.(in Chinese)
[8] Al-MAHMOUD F, CASTEL A, FRAN?OIS R, et al. Strengthening of RC members with near-surface mounted CFRP rods[J]. Composite Structures, 2009, 91(5): 138-147.
[9] 张海霞,孔丹丹,刘国瑞.表面内嵌玻璃纤维增强材料筋加固混凝土梁抗弯性能试验[J].工业建筑,2011,41(10):20-24. ZHANG Hai-xia, KONG Dan-dan, LIU Guo-rui. Experimental study on flexural behavior of concrete beams strengthened with near-surface mounted GFRP bars[J]. Industrial Construction, 2011, 41(10): 20-24.(in Chinese)
[10] CHOI H T, WEST J S, SOUDKI K A. Partially bonded near-surface-mounted CFRP bars for strengthened concrete T-beams[J]. Construction and Building Materials, 2011, 25(5): 2441-2449.
[11] CAPOZUCCA R. Static and dynamic response of damaged RC beams strengthened with NSM CFRP rods[J]. Composite Structures, 2009, 91(3): 237-248.
[12] YUAN Hong, LIN Zi-feng. Theoretical model on interface failure mechanism of reinforced concrete continuous beam strengthened by FRP[J]. Acta Mechanica Solida Sinica, 2009, 22(2): 161-170.
[13] FARAHBOD F, MOSTOFINEJAD D. Experimental study of moment redistribution in RC frames strengthened with CFRP sheets[J]. Composite Structures, 2011, 93(3): 1168-1177.
[14] 曹国辉,方 志,吴继峰.FRP片材加固混凝土连续梁试验研究[J].建筑结构,2005,35(10):63-66. CAO Guo-hui, FANG Zhi, WU Ji-feng. Experimental study on continuous RC beams strengthened with FRP laminates[J]. Building Structure, 2005, 35(10): 63-66.(in Chinese)
[15] AIELLO M A, VALENTE L, RIZZO A. Moment redistribution in continuous reinforced concrete beams strengthened with carbon-fiber-reinforced polymer laminates[J]. Mechanics of Composite Materials, 2007, 43(5): 453-466.
[16] 盛光祖,刘沐宇,张 伟.碳纤维布加固钢筋混凝土连续梁抗弯性能试验研究[J].结构工程师,2008,24(5):126-129. SHENG Guang-zu, LIU Mu-yu, ZHANG Wei. Flexural performance of RC continuous beams strengthened with CFRP Sheets[J]. Structural Engineers, 2008, 24(5): 126-129.(in Chinese)
[17] 程东辉,易亚敏,王天峰.碳纤维布加固混凝土连续梁塑性性能试验及有限元分析[J].中国铁道科学,2011,32(3):27-32.CHENG Dong-hui, YI Ya-min, WANG Tian-feng. Plastic performance test and finite element analysis on the concrete continuous beams strengthened with CFRP sheets[J]. China Railway Science, 2011, 32(3): 27-32.(in Chinese)
[18] MARI A R, OLLER E, BAIRáN J M. Predicting the response of FRP-strengthened reinforced-concrete flexural members with nonlinear evaluative analysis models[J]. Journal of Composites for Construction, 2011, 15(5): 799-809.
[19] OUYANG Li-jun, LU Zhuo-dao, CHEN Wei-zhen. Flexural experimental study on continuous reinforced concrete beams strengthened with basalt fiber reinforced polymer/plastic[J]. Journal of Shanghai Jiaotong University: Science, 2012, 17(5): 613-618.
[20] BREVEGLIERI M, BARROS J A O, DALFRé G M, et al. A parametric study on the effectiveness of the NSM technique for the flexural strengthening of continuous RC slabs[J]. Composites Part B: Engineering, 2012, 43(4): 1970-1987.
[21] DALFRé G M, BARROS J A O. NSM technique to increase the load carrying capacity of continuous RC slabs[J]. Engineering Structures, 2013, 56(5): 137-153.
[22] 彭秀丽,马守恩,范 伟.钢-混组合连续梁分析验算[J].筑路机械与施工机械化,2011,28(10):173-175,178.PENG Xiu-li, MA Shou-en, FAN Wei. Analysis and checking calculation of steel-concrete combined continuous beam[J]. Road Machinery and Construction Mechanization, 2011, 28(10): 173-175, 178.(in Chinese)

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Last Update: 2015-04-30