外贴碳纤维材料加固混凝土构件的力学性能及工程应用
|
摘要
近年来，纤维类材料在土木工程中的应用一直是国内外研究的热点，随着碳纤维材料的技术成熟，碳纤维材料(CFRP)已成为迄今为止应用于土木工程加固修复中最广泛的一种高科技材料。本文重点研究碳纤维制成织物片材粘贴到混凝土表面用于结构的补强与加固的技术特点，从理论上探讨CFRP加固混凝土结构的设计原理，分析二次受力对加固结构的弯矩承载力的影响；同时对外贴碳纤维加固混凝土的抗弯和抗剪提供一种简单、实用的设计方法，供工程设计人员参考，对碳纤维布加固混凝土梁中出现剥离破坏也进行了分析，提供了最大剥离正应力的计算公式，以及对外贴CFRP加固结构构件的粘贴构造与锚固进行了阐述。
二十一世纪，随着碳纤维材料的国产化进程和材料技术的不断进步，碳纤维材料无疑将会带来最大的经济效益和社会效益，因此研究这种新兴材料的设计原理和设计方法及有关施工技术措施具有十分重要的意义。
Recently, the application of fiber reinforced composites in civil engineering is now a hot sport in the research and development of the international civil engineering field. With the technical maturity of the carbon-fiber-reinforced plastic (CFRP), CFRP has become the most widely applied composite materials for the rehabilitation and retrofit of reinforced concrete members. This paper mainly introduces technologies of bending carbon fiber reinforced plastic (CFRP) plates or fabrics to the web of reinforced concrete members , and also this paper discusses the design principles of carbon fiber reinforced plastic(CFRP) used in the reinforced concrete members, as well as considering the preload effect to the bending capacity of the reinforced concrete members. Finally , a kind of new practical method is put forward ,and may be a reference for practical engineering designer .In the meantime ,this paper analyzes the "local failure" caused by shear and normal stress concentrations at the plate ends that can easily incorporated into design equations .Furthermore ,the bonding and anchoring conformation of concrete members strengthened by carbon fiber reinforced plastics also be set forth.
In 21st century, with the development of national-produced process and product technology of carbon fiber reinforced plastic(CFRP), no doubt, CFRP strengthening technique will bring huge economic profit to our society. So it is very important to study the design principle and method and construction technology of this new fiber-reinforced composites.
二十一世纪，随着碳纤维材料的国产化进程和材料技术的不断进步，碳纤维材料无疑将会带来最大的经济效益和社会效益，因此研究这种新兴材料的设计原理和设计方法及有关施工技术措施具有十分重要的意义。
Recently, the application of fiber reinforced composites in civil engineering is now a hot sport in the research and development of the international civil engineering field. With the technical maturity of the carbon-fiber-reinforced plastic (CFRP), CFRP has become the most widely applied composite materials for the rehabilitation and retrofit of reinforced concrete members. This paper mainly introduces technologies of bending carbon fiber reinforced plastic (CFRP) plates or fabrics to the web of reinforced concrete members , and also this paper discusses the design principles of carbon fiber reinforced plastic(CFRP) used in the reinforced concrete members, as well as considering the preload effect to the bending capacity of the reinforced concrete members. Finally , a kind of new practical method is put forward ,and may be a reference for practical engineering designer .In the meantime ,this paper analyzes the "local failure" caused by shear and normal stress concentrations at the plate ends that can easily incorporated into design equations .Furthermore ,the bonding and anchoring conformation of concrete members strengthened by carbon fiber reinforced plastics also be set forth.
In 21st century, with the development of national-produced process and product technology of carbon fiber reinforced plastic(CFRP), no doubt, CFRP strengthening technique will bring huge economic profit to our society. So it is very important to study the design principle and method and construction technology of this new fiber-reinforced composites.
引文
[1] 岳清瑞、陈小兵、牟宏远，碳纤维材料(CFRP)加固修补混凝土结构新技术，工业建筑1998(11)
[2] 王荣国、代成琴等，CFRP片材加固混凝土弯曲性能研究 低温建筑技术2002(2)：28—29
[3] 陈小兵、颜子涵等，碳纤维材料加固钢筋混凝土梁的实验研究 工业建筑VOl.28．NO．11 1998：6-10
[4] 赵彤、谢剑、戴自强，碳纤维布加固钢筋混凝土梁的受弯承载力试验研究建筑结构，2000(7)
[5] 吴刚、吕志涛，碳纤维布用于钢筋与加固的试验研究分析(7)建筑结构。2000，30(7)：3-6
[6] 徐丙雁、孙振华、李喜德等，碳纤维布增强混凝土力学特性的全场研究．建筑技术开发，VOl．29．NO．6：42-43
[7] Mslek,M.and saadatmanesh, H. "Predication of failure load of R/c Beams Strengthened with Frp Plate Due to stress concentration at the plate End",ACI Structural journal, 1998,95(1)
[8] Roberts T M and Haji-Kazemi H.Theoretical study of the behavior of reinforced concrete beams strengthened by externally bonded steel plates,Proceedings institution of Civil Engineers,part2,1989
[9] AmirM.Malek,and Hamid saadatmanesh. "Analytical study of Reinforced concrete Beams strengthened with Web-Bonded Fiber Reinforced Plastic Plates". ACI structural journal,V95,NO.3. 343-351
[10] Marco Arduini, Angelo Di Tomnmaso and Antonio,Brittle Failure in FRP Plate and Sheet Boned Beams. ACI Structural journal, July-August 1997
[11] GhaziJ,AL-Sulaimani; Alfarabi.sharif, eth, shear Repaired for Reinforced concrete by Fiberglass plate Bonding. ACI structural Journal, 1994(7-8)
[12] 吴刚、吕志涛 外贴碳纤维布加固混凝土梁的抗剪设计方法：工业建筑VOl．30，NO．10．2000：35-38
[13] Thanasisc,Triantafillou,Shear strengthening of Reinforced Concrete Beams Using Epoxy-Bonded FRP Composites ACI structural, Journal.V95.NO.2 1998
[14] 赵彤、谢剑，碳纤维布补强加固混凝土结构新技术(M)．天津大学出版社，2000
[15] 金熙男等外包纤维加固混凝土短柱轴压力学性能 低温建筑技术 2002
(2)：24-26
[16] 龙海燕、肖建庄等纤维增强材料加固柱型构件性能研究评述 建筑技术开发VOl．29．NO．7．2002：3-6
[17] 欧阳煜、钱在兹，粘钢片材加固混凝土梁的粘结剪应力分析 工程力学，2000，17(6)
[18] 肖建庄、李杰、魏锦涛，纤维布与混凝土之间粘结力的试验方法研究 玻璃钢/复合材料2002(5)：3-5
[19] 万墨林、韩继云编著混凝土结构加固技术(M)．中国建筑工业出版社，1995：8-12
[20] ACI Committee 440-F, "Guidelines for the selection Design, and installation of Fiber Reinforced polymer (FRP)systems for Externally strengthening concrete structures, February 1999.
[21] 吴刚、安琳、吕志涛，外贴碳纤维布加固混凝土的抗弯设计(J)．建筑结构，2000，30(7)：7-10
[22] 李荣、佟晓利、颜子涵．碳纤维材料加固混凝土结构技术应用实践(J)．工业建筑，1998，11：11-13
[23] 杨勇新、岳清瑞，碳纤维布与混凝土粘结性能的试验研究(J)．建筑结构学报，2001，22(3)：36-42
[24] Thanasisc,Triantafillou,shear strengthening of Reinforced Concrete Beams Using Epoxy-Bonded FRP Composites. ACI structural Journal.V. 95.NO.2:107-115
[25] 中国工程建设标准化协会标准，碳纤维片材加固混凝土结构技术规程(征求意见稿)2000
[26] 藤智明等编著钢筋混凝土基本构件(第二版)(M)．清华大学出版社，1998：47-49
[27] 吴志平、王慧、王萱，外贴碳纤维增强材料加固混凝土的抗弯设计方法(J)．合肥工业大学学报，2003(3)
[28] 张有才等编著建筑物的检测、鉴定、加固与改造(M)．冶金工业出版社，1997：1-5
[29] 湛润水、钊芳、帅长斌编著公路旧桥加固技术与实例．人民交通出版社，2001：1-8
[30] 王敬．碳纤维片加固混凝土结构经济技术分析(J)．工业建筑，2002，32(6)：74-76
[31] 罗苓隆．碳纤维布加固技术应用及发展中的几个问题(J)．四川建筑科学研究，2001，27(1)：22-24
[2] 王荣国、代成琴等，CFRP片材加固混凝土弯曲性能研究 低温建筑技术2002(2)：28—29
[3] 陈小兵、颜子涵等，碳纤维材料加固钢筋混凝土梁的实验研究 工业建筑VOl.28．NO．11 1998：6-10
[4] 赵彤、谢剑、戴自强，碳纤维布加固钢筋混凝土梁的受弯承载力试验研究建筑结构，2000(7)
[5] 吴刚、吕志涛，碳纤维布用于钢筋与加固的试验研究分析(7)建筑结构。2000，30(7)：3-6
[6] 徐丙雁、孙振华、李喜德等，碳纤维布增强混凝土力学特性的全场研究．建筑技术开发，VOl．29．NO．6：42-43
[7] Mslek,M.and saadatmanesh, H. "Predication of failure load of R/c Beams Strengthened with Frp Plate Due to stress concentration at the plate End",ACI Structural journal, 1998,95(1)
[8] Roberts T M and Haji-Kazemi H.Theoretical study of the behavior of reinforced concrete beams strengthened by externally bonded steel plates,Proceedings institution of Civil Engineers,part2,1989
[9] AmirM.Malek,and Hamid saadatmanesh. "Analytical study of Reinforced concrete Beams strengthened with Web-Bonded Fiber Reinforced Plastic Plates". ACI structural journal,V95,NO.3. 343-351
[10] Marco Arduini, Angelo Di Tomnmaso and Antonio,Brittle Failure in FRP Plate and Sheet Boned Beams. ACI Structural journal, July-August 1997
[11] GhaziJ,AL-Sulaimani; Alfarabi.sharif, eth, shear Repaired for Reinforced concrete by Fiberglass plate Bonding. ACI structural Journal, 1994(7-8)
[12] 吴刚、吕志涛 外贴碳纤维布加固混凝土梁的抗剪设计方法：工业建筑VOl．30，NO．10．2000：35-38
[13] Thanasisc,Triantafillou,Shear strengthening of Reinforced Concrete Beams Using Epoxy-Bonded FRP Composites ACI structural, Journal.V95.NO.2 1998
[14] 赵彤、谢剑，碳纤维布补强加固混凝土结构新技术(M)．天津大学出版社，2000
[15] 金熙男等外包纤维加固混凝土短柱轴压力学性能 低温建筑技术 2002
(2)：24-26
[16] 龙海燕、肖建庄等纤维增强材料加固柱型构件性能研究评述 建筑技术开发VOl．29．NO．7．2002：3-6
[17] 欧阳煜、钱在兹，粘钢片材加固混凝土梁的粘结剪应力分析 工程力学，2000，17(6)
[18] 肖建庄、李杰、魏锦涛，纤维布与混凝土之间粘结力的试验方法研究 玻璃钢/复合材料2002(5)：3-5
[19] 万墨林、韩继云编著混凝土结构加固技术(M)．中国建筑工业出版社，1995：8-12
[20] ACI Committee 440-F, "Guidelines for the selection Design, and installation of Fiber Reinforced polymer (FRP)systems for Externally strengthening concrete structures, February 1999.
[21] 吴刚、安琳、吕志涛，外贴碳纤维布加固混凝土的抗弯设计(J)．建筑结构，2000，30(7)：7-10
[22] 李荣、佟晓利、颜子涵．碳纤维材料加固混凝土结构技术应用实践(J)．工业建筑，1998，11：11-13
[23] 杨勇新、岳清瑞，碳纤维布与混凝土粘结性能的试验研究(J)．建筑结构学报，2001，22(3)：36-42
[24] Thanasisc,Triantafillou,shear strengthening of Reinforced Concrete Beams Using Epoxy-Bonded FRP Composites. ACI structural Journal.V. 95.NO.2:107-115
[25] 中国工程建设标准化协会标准，碳纤维片材加固混凝土结构技术规程(征求意见稿)2000
[26] 藤智明等编著钢筋混凝土基本构件(第二版)(M)．清华大学出版社，1998：47-49
[27] 吴志平、王慧、王萱，外贴碳纤维增强材料加固混凝土的抗弯设计方法(J)．合肥工业大学学报，2003(3)
[28] 张有才等编著建筑物的检测、鉴定、加固与改造(M)．冶金工业出版社，1997：1-5
[29] 湛润水、钊芳、帅长斌编著公路旧桥加固技术与实例．人民交通出版社，2001：1-8
[30] 王敬．碳纤维片加固混凝土结构经济技术分析(J)．工业建筑，2002，32(6)：74-76
[31] 罗苓隆．碳纤维布加固技术应用及发展中的几个问题(J)．四川建筑科学研究，2001，27(1)：22-24
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |