A NEW TECHNIQUE FOR STRENGTHENING CONCRETE STRUCTURES——NEAR-SURFACE MOUNTED FRP REINFORCEMENT
-
摘要: 嵌入式(NSM)加固法是FRP材料加固混凝土结构的一种新的应用形式,较外贴加固在某些方面具有明显优势。目前该技术在国内的研究应用尚属空白,对在该领域已有的国外文献从材料、试验研究、粘结性能和设计方法等几个方面进行了总结,可为国内今后开展相关的研究和应用提供借鉴和参考。Abstract: Near-surface mounted (NSM) FRP reinforcement is emerging as a promising technique for the strengthening of concrete structures, as it offers some real practical advantages over externally bonded FRP reinforcement. This paper presents a state-of-the-art review of the existing international research on NSM reinforcement.Topics covered include materials, bond behaviour, flexural strengthening tests and design recommendations. It provides a basis for further research and application in China.
-
Key words:
- FRP /
- near surface mounted /
- concrete structure /
- strengthening
-
[2] De Lorenzis L, Nanni A. Characlerislics of FRP Rods as NSM Reinforcement. Journal of Composites Construction, ASCE, 2001, 5(2): 114~121 CECS 146:2003 碳纤维片材加固混凝土结构技术规程 [3] De Lorenzis L, Nanni A. Bond between NSM Fiber-Reinforced Polymer Rods and Concrete in Structural Strengthening. ACI Structural Journal, 1999(2): 123~132 [4] De Lorenzis L. Strengthening of RC Structures with Near Surface Mounted FRP Rods. Ph. D. Thesis, Department of Innovation Engineering, University of Lecce, Italy: 2002 [5] De Lorenzis L, Rizzo A, La Tegola A. A Modified Pull-out Test for Bond of Near-Surface Mounted FRP Reds in Concrete. Composites Part B:Engineering, 2002, 33 (8): 589~603 [6] Blasehko M. Bond Behaviour of CFRP Strips Glued into Slits. Proceedings of the Sixth International Symposium on FRP Reinforcement for Concrete Structures, Singapore: 2003. 205~214 [7] Hassan T, Rizkalla S. Investigation of Bond in Concrete Structures Strengthened with Near Surface Mounted Carbon Fiber Reinforced Polymer Strips. Journal of Composites for Construction, ASCE, 2003, 7(3):248~257 [8] Rizkalla S, Hassan T. Effectiveness of FBP for Strengthening Concrete Bridges. Journal of Structural Engineering International, 2002, 3:89~95 [9] De Lorenzis L, Mieelli F, La Tegola A. Passive and Active Near-Surface Mounted FRP Rods for Flexural Strengthening of RC Beams. Proceedings of the Third International Conference of Composite in Infrastructures, San Francisco, California: 2002 [10] Taljsten B, Carolin A, Nordin H. Concrete Structures Strengthened with Near Surface Mounted Reinforcement of CFRP. Advances in Structural Engineering, 2002, 6(3):201~213 [11] Carolin A, Nordin H, Taljsten B. Concrete: Beams Strengthened with Near Surface Mounted Reinforcement of CFRP. Proceedings of the International Conference on FRP Composites in Civil Engineering, Hong Kong:2001.1 059~1 066 [12] Hassan T, Rizkalla S. Flexural Strengthening of Prestressed Bridge Slabs with FRP Systems. PCI Journal, 2002:47: 76~93 [13] Teng J G, Chen J F, Smith S T, et al. FRP-Strengthened RC Structures, John Wiley and Sons Ltd, 2002 [14] Smith S T. Teng J G. FRP-Strengthened RC Beams. I: Review of Debonding Strength Models. Engineering Structure, 2002, 24(4): 385~395 [15] De Lorenzis L, Nanni A. Design Procedure of NSM FRP Reinforcement for Strengthening of RC Beams. Proceedings of the Sixth International Symposium on FRP Reinforcement for Concrete Structures. Singapore:2003:1 455~1 464 [16] Alkhrdaji T, Nanni A, Chen G, et al. Upgrading the Transportation Infrastructure:Solid RC Decks Strengthened with FRP. Concrete International, 1999, 21(10):37~41 [17] Parretti R, Nanni A. NSM Design Guide, Co-Force America Inc. and Hughes Brothers Inc., USA:2003 [18] Nordin H, Taljsten B, Carolin A.Conerete Beams Strengthened with Prestressed NSM Reinforcement, Proceedings of the International Conference on FRP Composites in Civil Engineering, Hong Kong: 2001. 1 067~1 075 [19] De Lorenzis L, Nunni A. Shear Strengthening of Reinforced Concrete Beams with NSM Fiber-Reinforced Polymer Rods. ACI Structural Journal, 1998(1):60~68 [20] Tumialan J G, Galati N, Namboorimadathil S M, et al. Strengthening of Masonry with Near Surface Mounted FRP Bars. Proceedings of the Third International Conference of Composite in Infrastructures, San Francisco, California, CD-ROM Version, 2002 [21] Gentile C, Svecova D, Rizkalla S. Timber Beams Strengthened with GFRP Bars: Development and Applications. Journal of Composites for Construction, ASCE, 2002, 6(1):11~20 [22] Hogue T, Coruforth R C, Nanni A. Myriad Convention Center Floor System Reinforcement. Proceedings of the Fourth International Symposium on Fiber Reinforced Polymer Reinforcement for Reinforced Concrete Structures, 1999.1 145~1 161 [23] Stone D, Tumialan G, Nanni A.et al. Near-Surface Mounted FRP Reinforcement: Applicatiun of an Emerging Technology. Concrete(London), 2002, 36(5) :42~44
点击查看大图
计量
- 文章访问数: 134
- HTML全文浏览量: 9
- PDF下载量: 158
- 被引次数: 0