ANALYSES AND EVALUATION OF THE PROBLEM CONCERNING INTERFACE CONSTITUTIVE MODEL OF CONCRETE BEAM STRENGTHENED WITH FIBER REINFORCED PLASTIC

Abstract

Abstract: Based on the many problems of researching about interfacial characteristics between fiber reinforced plastic and concrete, interface constitutive model of concrete beam strengthened with fiber reinforced plastic was researched. Media and the interface of concrete beam strengthened were defined, the reason difficult to obtain bond shear stress was founded, compose of interface bond-slip, rigid body sliding, the parameters and their adaptability of constitutive relationship were analysed. The problems concerning interface constitutive model of concrete beam strengthened with fiber reinforced plastic were inducted and evaluated, the experimental method researching interfacial characteristics between FRP and concrete with wide-notch concrete beam was put forward.

Key words: fiber reinforced plastic, strengthening, concrete beam, interface, constitutive model, analyses and evaluation

CLC Number:

ZENG Xian-tao, REN Zhen-hua. ANALYSES AND EVALUATION OF THE PROBLEM CONCERNING INTERFACE CONSTITUTIVE MODEL OF CONCRETE BEAM STRENGTHENED WITH FIBER REINFORCED PLASTIC[J]. COMPOSITES SCIENCE AND ENGINEERING, 2014, 0(1): 62-67.

References

[1] 张海霞,朱浮声,孔丹丹.考虑不同位置变化的GFRP筋与混凝土粘结试验研究[J].玻璃钢/复合材料,2008,(4):41-44.
[2] 任振华.内嵌CFRP筋-预应力螺旋肋筋复合加固混凝土梁抗弯试验研究[D].焦作:河南理工大学,2009.
[3] 陆新征.FRP-混凝土界面行为研究[D].北京:清华大学,2004.
[4] Neubauer U,Rostasy F. Bond failure of Concrete fiber reinforced polymer plates at inclined cracks-experiments and fracture mechanics model[C]. Farmington Hills(Ml): Proceedings of 4^thInternationa1 Sym posium on Fiber Reinforced Polymer Reinforcement for Reinforced Concrete Structures,SP-188,1999.369-382.
[5] Nakaba K, Toshiyuki K, Tomoki F et al. Bond behavior between fiber-reinforced polymer 1aminates and concrete [J]. ACI Structural Journal,2001, 98(3):359-367.
[6] Monti M,Renzelli M,Luciani P. FRP adhesion in un-cracked and cracked concrete zones[C]. Singapore: Proceedings of 6^thInternationa1 Symposium on FRP Reinforcement for Concrete Structures,World Scientific Publications, 2003.183-192.
[7] Savioa M, Farracuti B, Mazzotti D. Non-linear bond-slip law for FRP-concrete interface[C]. Singapore: Proceedings of 6^thInternationa1 Symposium on FRP Reinforcement for Concrete Structures, World Scientific Publications, 2003.163-172.
[8] Dai J,Ueda T. Local bond stress slip relations for FRP sheets-concrete structures[C]. Singapore: Proceedings of 6^thInternationa1 Symposium on FRP Reinforcement for Concrete Structures, World Scientific Publications,2003.143-152.
[9] Chajes M J, Januszka T F, Mertz D R, Thomson T A J, Finch W J. Shear strengthening of reinforced concrete beams using externally applied composite fabrics [J], ACI Structural Journal, 1995, 92(3):295-303.
[10] Dai J,Ueda T, Sato Y. Development of the nonlinear bond stress-slip model of fiber reinforced plastics sheet-concrete interfaces with a simple method [J]. Journal of Composites for Construction, ASCE, 2005,9(1):52-62.
[11] Ueda T, Dai J, Sato Y. An nonlinear bond stress-slip relationship for FRP sheet-concrete interface[C]. Proceedings of Internationa1Symposium on Latest Achievement of Technology and Research on Retrofitting Concrete Structures, 2003.113-120.
[12] Eligehausen R, Popov E P and Bertero V V. Local bond stress-slip relationship s of deformed bars under generalized excitations [R]. Berkeley, Calif.: Rep No.83, Earthquake Engrg Ctr ( EERC ) , Univ. of California, 1983.
[13] Faoro M. Bearing and deformation behavior of structural components with reinforcements comp rising resin bounded glass fiber bars and conventional ribbed steel bars[A]. Proc of Int Conf On Bond in concrete[C]. 1992.
[14] Alunno Rossett V , Galeota D , Giammatted M M. Local bond stress-slip relationship s of glass fiber reinforced plastic bars embedded in concrete[J]. Materials and Structures, 1995, ( 28) : 340-344.
[15] Cosenza E, Manfredi G and Realfonzo R. Analytical modeling of bond between FRP reinforcing bars and concrete [A]. Proc of 2ndInt R ILEM Symp (FRPRCS22)[C].1995.
[16] Cosenza E, Manfredig, Realfonzo R. Behavior and modeling of bond of FRP bars to concrete [J]. Journal of Composites for Construction, 1997,(5): 40-51.
[17] Malvar J. Tensile and pond properties of GFRP reinforcing bars[J].ACI Materials Journal, 1995, 92(3) : 54-59.
[18] 高丹盈,朱海棠,谢晶晶,纤维增强塑料筋混凝土粘结滑移本构模型[J].工业建筑, 2003, 7(33):41-44.
[19] De Lorenzis L.Strengthening of RC structures with near surface mounted FRP rods[D]. Italy: Department of Innovation Engineering, University of Lecce,2002.
[20] Parretti R, Nanni A. Strengthening of RC members using near-surface mounted FRP composites: design overview[J]. Adv. Struct. Eng., 2004,7(6):469-483.
[21] 任振华.碳纤维增强材料加固型混凝土梁应变协调关系及界面特性研究[D].南京:河海大学,2012.
[22] 任振华,曾宪桃.复合内嵌碳纤维筋预应力螺旋肋钢筋加固混凝土梁承载力分析[J]. 玻璃钢/复合材料,2012,(5):33-37.
[23] 王兴国等.预应力CFRP板加固混凝土桥梁研究与应用[J].玻璃钢/复合材料,2009,4:83-85.
[24] 丁亚红,任振华等. 外贴玻璃钢板加固混凝土梁弯曲试验研究[J].玻璃钢/复合材料,2010,2:66-70.