全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

预应力CFRP板加固混凝土梁桥的可靠度分析

, PP. 58-66

Keywords: 桥梁工程,混凝土桥梁,可靠度,预应力碳纤维,弯曲抗力概率模型

Full-Text   Cite this paper   Add to My Lib

Abstract:

基于Weibull分布类型推导了受尺寸和应力分布影响的CFRP板抗力概率模型,根据实桥加固方案建立了预应力碳纤维加固T梁的抗力概率模型,获得了抗力均值、标准差,并认为其抗力不拒绝对数正态分布.在此基础上,考虑公路II级荷载标准,计算了预应力碳纤维加固主梁的抗弯承载力可靠指标,从结构可靠度理论角度评估了加固效果,并进行了可靠度参数敏感性分析,分析了设计失效模式下主梁采用预应力碳纤维加固后的可靠度主要影响因素.研究成果是加固桥梁结构力学评价的有益补充,可为碳纤维加固桥梁的设计规程编制提供理论基础.

References

[1]  TOUTANJI H,ZHAO L,ZHANG Y. Flexural Behavior of Reinforced Concrete Beams Externally Strengthened with CFRP Sheets Bonded with An Inorganic Matrix[J]. Engineering Structures,2006,28(4):557-566.
[2]  EI-HACHA R,GREEN M F,WIGHT R G. Flexural Behavior of Concrete Beams Strengthened with Pre-stressed Carbon Fiber Reinforced Polymer Sheets subjected to Sustained Loading and Low Temperature[J]. Canadian Journal of Civil Engineering,2004,31(2):239-252.
[3]  SI-LARBI A,Agbossou A,Ferrier E,et al. Strengthening RC Beams with Composite Fiber Cement Plate Reinforced by Prestressed FRP Rods: Experimental and Numerical Analysis[J]. Composite Structures,2012,94(3): 830-838.
[4]  XUE W,TAN Y,ZENG L. Flexural Response Predictions of Reinforced Concrete Beams Strengthened with Prestressed CFRP Plates[J]. Composite Structures,2010,92(3):612-622.
[5]  尚守平,彭晖,童桦,等.预应力碳纤维布材加固混凝土受弯构件的抗弯性能研究[J].建筑结构学报,2003, 24(5):24-30. SHANG Shou-ping,PENG Hui,TONG Ha,et al. Study of Strengthening Reinforced Concrete Beam using Prestressed Carbon Fiber Sheet[J]. Journal of Building Structures,2003,24(5):24-30.
[6]  叶列平,庄江波,曾攀,等.预应力碳纤维布加固钢筋混凝土T形梁的试验研究[J].工业建筑,2005,35(8):7-12.YE Lie-ping,ZHUANG Jiang-bo,ZENG Pan,et al. Experimental Study on Reinforced Concrete T-beams Strengthened with Prestressed CFRP Sheets [J]. Industrial Construction,2005,35(8):7-12.
[7]  尚守平,彭晖,曾令宏. 预应力碳纤维布材加固混凝土梁受弯性能非线性分析[J]. 工程力学,2006,23(11): 85-90. SHANG Shou-ping,PENG Hui,ZENG Ling-hong. Non-linear Analysis of Reinforced Concrete Beam Strengthened with Prestressed Carbon Fiber Reinforced Plastic Sheet Subject to Bending [J]. Engineering Mechanics,2006,23(11):85-90.
[8]  彭晖,尚守平.预应力碳纤维板加固受弯构件的试验研究[J]. 工程力学,2008,25(5):142-151.PENG Hui,SHANG Shou-ping. Experimental Study of Reinforced Concrete Beam with Prestressed CFRP Plate [J]. Engineering Mechanics,2008,25(5):142-151.
[9]  李春良,程永春. 碳纤维布加固钢筋混凝土梁的预应力控制过程[J]. 吉林大学学报:工学版,2008,38(2): 393-398. LI Chun-liang,CHENG Yong-chun. Pre-tension Control of Reinforced Concrete Beam Strengthened with CFRP Sheets[J]. Journal of Jilin University:Engineering and Technology Edition,2008,38(2):393-398.
[10]  杨勇新,李庆伟,岳清瑞. 预应力碳纤维布加固混凝土梁预应力损失试验研究[J]. 工业建筑,2006,36(4):5-8. YANG Yong-xin,LI Qing-wei,YUE Qing-rui. Experimental Research on Prestress Loss in Technique of Concrete Structure Strengthened with Pre-stressed CFRP Sheets [J]. Industrial Construction,2006,36(4): 5-8.
[11]  钱伟,高丹盈. 预应力碳纤维加固钢筋混凝土梁正截面承载力计算方法[J]. 建筑科学,2006,22(5):10-14. QIAN Wei,GAO Dan-ying. Calculation of Flexural Bearing Capacity of Reinforced Concrete Beams Strengthened by Using Prestressed CFRP Sheets[J]. Building Science,2006,22(5):10-14.
[12]  CHAHROUR A, SOUDKI K. Flexural Response of Reinforced Concrete Beams Strengthened with End-anchored Partially Bonded Carbon Fiber-reinforced Polymer Strips[J].Journal of Composites for Construction,2005,9(2):170-177.
[13]  叶华文,UMMENHOFER T,强士中. 预应力 CFRP 板加固钢梁抗弯疲劳试验研究[J]. 公路交通科技,2009,26(12),50-55.YE Hua-wen,UMMENHOFER T,QIANG Shi-zhong. Experimental Study of Flexural Fatigue Performance of Steel Girder Reinforced by Prestressed CFRP Plate[J]. Journal of Highway and Transportation Research and Development,2009,26(12):50-55.
[14]  PLEVRIS N,TRIANTAFILLOU T C,VENEZIANO D. Reliability of RC Members Strengthened with CFRP Laminates [J]. Journal of Structural Engineering,1995, 121(7):1037-1044.
[15]  OKEIL A M,EI-TAWIL S,SHAHAWY M. Flexural Reliability of Reinforced Concrete Bridge Girders Strengthened with Carbon Fiber-reinforced Polymer Laminates[J]. Journal of Bridge Engineering,2002,7(5): 290-299.
[16]  PHAM H B,AL-MAHAIDI R. Reliability Analysis of Bridge Beams Retrofitted with Fiber Reinforced Polymers[J]. Composite Structures,2008,82(2):177-184.
[17]  孙晓燕,黄承逵,孙保沭. 既有桥梁外贴纤维布加固后可靠度分析[J]. 东南大学学报:自然科学版,2005, 35(3):427-432. SUN Xiao-yan,HUANG Cheng-kui,SUN Bao-mu. Time-dependent Reliability Analysis of Existing Bridges Strengthened with FRP Laminates[J]. Journal of Southeast University:Natural Science Edition,2005,35(3): 427-432.
[18]  卢少微,谢怀勤. CFRP 加固 RC 梁抗弯可靠度设计方法研究[J]. 应用基础与工程科学学报,2007,15(4): 517-523. LU Shao-wei,XIE Huai-qin. Design Method Researching of Flexural Reliability for CFRP-Strengthened RC Beams[J]. Journal of Basic Science and Engineering,2007,15(4):517-523.
[19]  尚守平,吴建任,张毛心,等. 预应力碳纤维板加固系统的预应力损失试验[J]. 公路交通科技,2012,29(1):70-74.SHANG Shou-ping,WU Jian-ren,ZHANG Mao-xin,et al. Experimental Study on Prestress Loss of Strengthening System of Prestressed CFRP Plate[J]. Journal of Highway and Transportation Research and Development,2012,29(1):70-74.
[20]  何政,黄永春. 应用Monte Carlo—JC法评估FRP加固RC梁受弯承载力可靠度. 复合材料学报,2007,24(1):116-121. HE Zheng,HUANG Yong-chun. Application of Monte Carlo-JC Method to the Reliability Assessment of Flexural Capacity of RC Beams Strengthened with FRP[J]. Acta Materiae Compositae Sinica,2007,24(1):116-121.
[21]  OKABE T,TAKEDA N. Size Effect on Tensile Strength of Unidirectional CFRP Composites-experiment and Simulation[J]. Composites Science and Technology,2002,62(15):2053-2064.
[22]  OKEIL A M,EI-TAWIL S,SHAHAWY M. Short-term Tensile Strength of Carbon Fiber-reinforced Polymer Laminates for Flexural Strengthening of Concrete Girders[J]. ACI Structural Journal,2001,98(4):470-478.
[23]  HARLOW D G,PHOENIX S L. Probability Distributions for the Strength of Composite Materials II:A Convergent Sequence of Tight Bounds[J]. International Journal of Fracture,1981,17(6):601-630.
[24]  ELLINGWOOD B. Development of a Probability based Load Criterion for American National Standard A58:Building Code Requirements for Minimum Design Loads in Buildings and Other Structures[M]. US Department of Commerce,1980:222-223.
[25]  刘扬,彭晖,尚守平. 预应力 CFRP 加固钢筋混凝土受弯构件的抗力概率模型研究[J]. 工程力学,2012,29(7):107-116.LIU Yang,PENG Hui,SHANG Shou-ping. Probability Model of the Flexural Resistance of Reinforced Concrete Beams Strengthened with Prestressed CFRP Plates [J]. Engineering Mechanics,2012,29(7):107-116.
[26]  李扬海,鲍卫刚.公路桥梁结构可靠度与概率极限状态设计[M].北京:人民交通出版社,1997:203-209.LI Yang-hai,BAO Wei-gang. Design of Structural Reliability and Probabilistic Limit State of Highway Bridge [M]. Beijing:China Communications Press,1997:203-209.
[27]  刘扬,张建仁,余志武.大跨度混凝土斜拉桥拉索施工期的可靠度分析[J]. 中国公路学报,2007,20(3):41-47. LIU Yang,ZHANG Jian-ren,YU Zhi-wu. Reliability Analysis of Stay Cables for Long-span Concrete Cable-stayed Bridges during Construction [J]. China Journal of Highway and Transport,2007,20(3):41-47.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133