摘要A new type of bridge deck structure with prestressed Carbon Fiber Reinforced Plastic Reinforced (CFRP) tendons was designed. Flexural performance tests on the prestressed concrete bridge deck with CFRP tendons were conducted. The cracking and ultimate loads of such bridge deck and the stress states and failure modes of the CFRP tendons were systematically analyzed. Results showed that the bending force process of unbonded prestressed CFRP tendon bridge deck with ordinary steel bars in the tension zone can be divided into three stages, namely, initial elastic loading state, elastic-plastic stage from the appearance of cracks to ordinary steel yielding in the tensile area, and rapid deformation development and destruction stage during tension bearing of the CFRP tendons. The failure modes of unbonded prestressed CFRP tendon bridge deck were caused by the rapid deformation development due to the low modulus of CFRP tendons, and the extension of cracks and crushing failure of concrete were due to the decreased area of effective compressive concrete. The fractures were mostly equidistant parallel cracks. The cracks slowly developed in the early stage, whereas they rapidly developed after ordinary steel yielding.
Abstract：A new type of bridge deck structure with prestressed Carbon Fiber Reinforced Plastic Reinforced (CFRP) tendons was designed. Flexural performance tests on the prestressed concrete bridge deck with CFRP tendons were conducted. The cracking and ultimate loads of such bridge deck and the stress states and failure modes of the CFRP tendons were systematically analyzed. Results showed that the bending force process of unbonded prestressed CFRP tendon bridge deck with ordinary steel bars in the tension zone can be divided into three stages, namely, initial elastic loading state, elastic-plastic stage from the appearance of cracks to ordinary steel yielding in the tensile area, and rapid deformation development and destruction stage during tension bearing of the CFRP tendons. The failure modes of unbonded prestressed CFRP tendon bridge deck were caused by the rapid deformation development due to the low modulus of CFRP tendons, and the extension of cracks and crushing failure of concrete were due to the decreased area of effective compressive concrete. The fractures were mostly equidistant parallel cracks. The cracks slowly developed in the early stage, whereas they rapidly developed after ordinary steel yielding.
杨则英, 刘阳宇东, 孙明皓, 曲永业, 祁文超. 预应力CFRP筋混凝土桥面板试验研究[J]. Journal of Highway and Transportation Research and Development, 2018, 12(4): 44-50.
YANG Ze-ying, LIU Yang-yu-dong, SUN Ming-hao, QU Yong-ye, QI Wen-chao. Experimental Research on Prestressed Carbon Fiber Reinforced Plastic Reinforced Concrete Decks. Journal of Highway and Transportation Research and Development, 2018, 12(4): 44-50.
[1] WANG Rong-guo. Introduction to Composite Materials[M]. Harbin Institute of Technology Press, 2001.(in Chinese)
[2] CHEN Xiao-bing, Li Rong, DING Yi. Technical Guide for Application of High-Performance Fiber Composites in Civil Engineering[M]. Beijing:China Architecture & Building Press, 2009.(in Chinese)
[3] LIU Rong-gui. Editorial Department of China Journal of Highway and Transport. Review on China's Bridge Engineering Research:2014[J]. China Journal of Highway and Transport, 2014, 27(5):1-96.(in Chinese)
[4] SAAFI M, TOUTANJI H. Flexural Capacity of Prestressed Concrete Beams Reinforced with Aramid Fiber Reinforced Polymer (AFRP) Rectangular Tendons[J]. Construction and Building Materials, 1998, 12(5):245-249.
[5] YANG Ze-ying, LIU Jia-you,ZHANG Yi-dong. Flexuyal Behavior Finit Element Andysis of CFRP Reinforced Concrete Bridge Deck with Corrosion and Salt Resistance[J]. Advanced Materials Research,2014,1004-1005,1474.
[6] YANG Ze-ying, ZHANG Yi-dong, SUN Hua-ming, et al. Experimental Study on Flexural Behavior of CFRP Bar-Reinforced Concrete Bridge Deck with Corrosion and Salt Resistance[J]. Advanced Materials Regearch, 2014, 1004-1005:1450-1454.
[7] ZHAO Yu. Study on Flexural Behavior of Corrosion and Salt Resistance Bridge Deck with CFRP-Reinforced Concrete[D]. Shandong:Shandong University, 2013.(in Chinese)
[8] LIU Qi-wei, HUA Ming, ZHAI Rui-xing, et al. Crack Widths of Rectangular-Reinforced Concrete Beams Strengthened with Externally Bonded CFRP Sheets[J]. Journal of Highway and Transportation Research and Development, 2007, 24(12):79-84.(in Chinese)
[9] JIANG Tian-yong, FANG Zhi. Bond Stress Distribution of Bond type Anchors for CFRP Tendons under the Ultimate Tensile Capacity[J]. Journal of Highway and Transportation Research and Development, 2007, 24(12):75-78,92.(in Chinese)
[10] FANG Zhi, GONG Chang, YANG Jian, et al. Fatigue Behavior of Bond-type Anchorage with CFRP Tendon[J]. Journal of Highway and Transportation Research and Development, 2012, 29(7):58-63.(in Chinese)
[11] CORREIA L, TEIXEIRA T, MICHELS J, et al. Flexural Behaviour of RC Slabs Strengthened with Prestressed CFRP Strips Using Different Anchorage Systems[J]. Composites Part B Engineering, 2015, 81:158-170.
[12] TIAN Qi-xian, TAN Ying. Experimental Study on CFRP Prestressed Concrete Skew Bridge[J]. Foreign Bridges, 2000(4):31-37.(in Chinese)
[13] CAO Guo-hui, FANG Zhi. Experimental Study on Behaviour of Concrete Box Girder Prestressed with External CFRP Tendons[J]. Journal of Highway and Transportation Research and Development, 2006, 23(10):50-54.(in Chinese)
[14] ZANG Hua, LIU Zhao, LÜ Zhi-tao, et al. Research and Application Review on CFRP Cables for Cable-stayed Bridges[J]. Journal of Highway and Transportation Research and Development, 2006,23(10):70-74.(in Chinese)
[15] TAN K H, FAROOQ M, Ng C K. Behavior of Simple-span Reinforced Concrete Beams Locally Strengthened with External Tendons[J]. ACI Structural Journal, 2001, 98(2):174-183.
[16] ZHANG Jian-wei, DENG Zong-cai, DU Xiu-li, et al. Application and Development of Prestressed FRP in Concrete Structures[J]. World Earthquake Engineering, 2006, 22(1):133-139. (in Chinese)
[17] WANG Yan-lei, OU Jin-ping. Hybrid FRP Concrete Beam Deck Systems State-of-the-art Review[J]. Journal of Highway and Transportation Research and Development, 2007, 24(4):99-104. (in Chinese)
[18] KIM Y J, GREEN M F, WIGHT R G. Prestressed Fiber-reinforced Polymer (FRP) Composites for Concrete Structures in Flexure:Fundamentals to Applications[J]. Advanced Composites in Bridge Construction & Repair, 2014:30-60.
[19] LOU T, LOPES S M R, LOPES A V. A Comparative Study of Continuous Beams Prestressed with Bonded FRP and Steel Tendons[J]. Composite Structures, 2015, 124:100-110.
[20] CHEN Mo, CHENG Dong-hui, XING Jian-bing. Finite Element Analysis of Mechanical Performance of Prestressed Concrete Beam with CFRP Tendons[J]. Journal of Highway and Transportation Research and Development, 2010, 27(6):72-78. (in Chinese)
[21] YANG Ze-ying, LIU Jia-you, ZHANG Yi-dong, et al. Flexural Behavior Finite Element Analysis of CFRP Reinforced Concrete Bridge Deck with Corrosion and Salt Resistance[J]. Advanced Materials and Technologies, 2014, 1004-1005:1474-1477.
[22] AU F T K, DU J S. Deformability of Concrete Beams with Unbonded FRP Tendons[J]. Engineering Structures, 2008, 30(12):3764-3770.
[23] BARROS J A O, TAHERI M, SALEHIAN H, et al. A Design Model for Fibre Reinforced Concrete Beams Pre-stressed with Steel and FRP Bars[J]. Composite Structures, 2012, 94(2012):2494-2512.
[1]
常柱刚, 王林凯, 夏飞龙. 基于CV NewMark-b法桥梁风致振动FSI数值模拟[J]. Journal of Highway and Transportation Research and Development, 2019, 13(2): 28-37.
2018, Vol. 12 
