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预应力AFRP加固混凝土梁的疲劳与静载特性

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Keywords: 桥梁工程,钢筋混凝土梁,试验研究,芳纶纤维,预应力,加固,疲劳性能

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Abstract:

?对带永久锚具的预应力芳纶纤维(AFRP)加固混凝土梁的疲劳、静载性能进行了试验研究,提出了预应力AFRP加固梁疲劳寿命的计算公式。5根梁的静载试验结果表明:预应力水平为55%~65%时,预应力AFRP加固梁的开裂、屈服比非预应力加固梁分别提高147%~165%和28%~50%,表明预应力加固能显著改善混凝土梁的抗弯性能。5根梁的疲劳试验结果表明:预应力加固能够显著提高梁的疲劳寿命,预应力与非预应力加固梁的疲劳寿命取决于纵筋应力幅值;预应力加固降低了梁中纵筋应力幅,疲劳寿命随着预应力水平的增大而提高。

References

[1]  马玉平, 马 昕, 崔建涛.高强度混凝土试验研究[J].建筑科学与工程学报, 2005, 22(3):67-69.
[2]  MA Yu-ping, MA Xin, CUI Jian-tao.Experimental Research on High-strength Concrete[J].Journal of Architecture and Civil Engineering, 2005, 22(3):67-69.
[3]  钟 铭, 王海龙, 王海良.高强混凝土梁在疲劳荷载作用下的裂缝宽度计算[J].中国公路学报, 2005, 18(4):48-53.
[4]  ZHONG Ming, WANG Hai-long, WANG Hai-liang.Calculation of Crack Width of High-strength Concrete Beams Under Fatigue Loading[J].China Journal of Highway and Transport, 2005, 18(4):48-53.
[5]  武建民, 李晓军.沥青混合料小梁疲劳试验的有限元模拟[J].长安大学学报:自然科学版, 2004, 24(1):5-8.
[6]  WU Jian-min, LI Xiao-jun.Simulation of Asphalt Mixtures Beam Test with Finite-element Method[J].Journal of Changan University:Natural Science Edition, 2004, 24(1):5-8.
[7]  贺拴海, 任 伟.纤维增强塑料加固混凝土结构研究[J].建筑科学与工程学报, 2005, 22(3):20-24.
[8]  HE Shuan-hai, REN Wei.Research on Reinforced Concrete Structure with FRP[J].Journal of Architecture and Civil Engineering, 2005, 22(3):20-24.
[9]  PAPAKONSTANTINOU C G.Fatigue Behavior of RC Beams Strengthened with GFRP Sheets[J].J of Composites for Construction, 2001, 5(4):246-253.
[10]  曾志斌.普通混凝土梁用钢筋的S-N曲线研究[J].土木工程学报, 1999, 32(5):10-14.
[11]  ZENG Zhi-bin.Research on Fatigue S-N Curves of Reinforcing Beams in Common Reinforced Concrete Beams[J].China Civil Engineering Journal, 1999, 32(5):10-14.
[12]  MASOUD S, SOUDKI K, TOPPER T.Post-repair Fatigue Performance of FRP-repaired Corroded RC Beams:Experimental and Analytical Investigation[J].J of Composites for Construction, 2005, 9(5):441-449.
[13]  曹建安.锈蚀钢筋的疲劳试验[J].长沙铁道学院学报, 1998, 16(4):15-18.
[14]  CAO Jian-an.Fatigue Experiment on Corrosion Reinforcement[J].Journal of Changsha Railway University, 1998, 16(4):15-18.
[15]  MOSS D S.Bending Fatigue of High-yield Reinforcing Bars in Concrete[R].Crowthome:Transport and Road Research Laboratory, 1982.
[16]  BARNES R A, MAYS G C.Fatigue Performance of Concrete Beams Strengthened with CFRP Plates[J].J Composites for Construction, 1999, 3(2):63-72.
[17]  MEIER U, DEURING M, MEIER H, et al.Strengthening of Structures with CFRP Laminates:Research and Applications in Switzerland[C]//NEALE K W, LABPSSIERE P.Advanced Compos.Mat.in Bridges and Structure.Montreal:Canadian Society for Civil Engineers, 1992:221-229.
[18]  王海超, 贡金鑫.钢筋混凝土梁腐蚀后疲劳性能的试验研究[J].土木工程学报, 2005, 38(11):32-37.
[19]  WANG Hai-chao, GONG Jin-xin.An Experimental Study on the Fatigue Behavior of Corroded Reinforced Concrete Beams[J].China Civil Engineering Journal, 2005, 38(11):32-37.

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