CN1251152A - 加固结构件的扁平薄带及将扁平薄带安装在结构件上的方法 - Google Patents
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Abstract
本发明涉及一种加强例如由混凝土、木材、钢材或天然石块或者砖砌体等构成的承载或传递负荷的结构件的扁平薄带,它具有一个由大量平行对齐的易弯曲或柔性的增强纤维(26)和把增强纤维以耐剪切的方式连接的粘合剂基层(28)构成的复合结构,并可借助粘胶剂(16)面对地固定在所要加固的结构件(12)表面。为了使扁平带绕过结构件的角部,粘合剂基层(28)由热塑性塑料构成。
Description
本发明涉及加固承载或传递负荷的结构件的扁平薄带,它具有一由大量同方向彼此排列的易弯曲或柔性的增强纤维(Tragfaser)和把增强纤维以耐剪切的方式连接起来的粘合剂基层构成的复合结构,并可借助胶粘剂面对地固定在所要加固的结构件表面。此外,本发明还涉及将这种扁平薄带安装在结构件上的方法。
这种类型的加固薄带例如已由WO96/21785公开。这种加固薄带用在纵向延伸的和/或者平面的结构件上。这种由热固性塑料,特别是具有环氧树脂粘合剂基层的加固薄带不能以小弯曲半径弯曲,因此不能做延伸过结构件的边缘的弧形加固。而弧形加固是需要的,例如用以保证钢筋混凝土大梁和钢筋混凝土T型梁压力区和拉力区之间的连接或相互联系并避免应力和横向断裂。
以此为出发点,本发明的目的是开发一种可绕过结构件的边缘加固结构件的扁平薄带。本发明的另一个目的是提供将这种扁平薄带安装在结构件上的方法。
为达到这一目的,在权利要求1以及6至9中提出了所说明的特征组合。从这些所属的权利要求中,可以看出本发明的有利的实施例和进一步的结构。
本发明所提出的解决办法是基于这种认识,即扁平薄带的抗弯性主要是由粘合剂基层造成的。为使扁平薄带也能够导过弯曲的结构件表面和结构件角部边缘,本发明提出粘合剂基层由热塑性塑料构成。通过提高局部温度,可使这种扁平薄带变形并与所要加固的结构件的表面轮廓相吻合。所使用的热塑性塑料的玻璃临界点最好高于100℃,而熔点应高于160℃,以保证可靠地使用。扁平薄带的局部加热可在现场使用例如电热吹风器完成。
为生成粘合剂基层,例如可考虑采用热塑性塑料由聚烯烃、乙烯聚合物、聚酰胺、聚酯、聚甲醛、聚碳酸脂、聚氨脂和离子聚合物的一组中选出。
增强纤维可由特点是具有较高弹性模数的碳纤维构成。增强纤维也可包含芳族纤维、玻璃纤维、聚丙烯纤维和这类纤维或由这些纤维组成。
为将本发明的延伸扁平薄带绕过结构件边缘安装到所要加固的结构件上,本发明提出,将扁平薄带要绕过结构件边缘的中间区域加热到高于热塑性粘合剂玻璃临界点的温度,在加热状态下弯成与结构件的角部或边缘棱角相应的角度,并在冷却前或冷却后借助胶粘剂层导过结构件边缘贴在结构件上。
依据本发明使用的热塑性粘合剂基层,允许将预张紧状态下的扁平薄带安装在结构件表面。扁平薄带可以用其凸出所要加固的结构件表面的自由端套在或弯曲到各自的夹紧元件上并固定在该元件上。然后可将张紧元件张紧,以致可将处于预张紧状态下的扁平薄带贴在结构件表面。为张紧张紧元件,可在与所要加固的结构件表面相距一定距离内设置一张紧装置。该装置也可只夹住扁平薄带的一端,另一端由适当的张紧元件固定在结构件表面。
此外,使用本发明的热塑性粘合剂基层,还可以在压力和热的作用下将扁平薄带的自由端压成波浪形或锯齿形。为了定形,将按这种方式变形的薄带端插入充满胶粘剂的结构件凹槽之中,以致锯齿形区域充满很稠的胶粘剂并在胶粘剂硬化后与其形成形状相配的连接。
此外,带有本发明的热塑性粘合剂基层的扁平薄带还可用于加固柱形结构件。为此将加热到高于粘合剂玻璃临界区温度的扁平薄带螺旋式缠绕在一柱形结构件涂有液态反应性胶粘剂的表面,在缠绕状态下冷却至使用温度同时胶粘剂硬化。为避免扁平薄带绕组下液体堆积,在扁平薄带的两个螺旋匝之间保持一定距离是很有益的。
为提高扁平薄带和例如由环氧树脂构成的胶粘剂之间的粘附效果,例如通过打毛或磨削使扁平薄带在其胶粘剂一侧的表面去除粘合剂,露出增强纤维表面会是很有益的。
以下借助在附图中以示意方式介绍的实施例对本发明做详细说明,附图中:
图1a是一段加固薄带的顶视图;
图1b是沿图1aB-B切线的剖面放大图;
图2是安装有弧形弯曲加固薄带的钢筋混凝土T型梁剖面图;
图3示出根据图2III截面可插入结构件凹槽中的加固薄带的一端;
图4示出用于将加固薄带预应力安装在结构件上的张紧装置;
图5示出一装有螺旋缠绕加固薄带的圆柱形结构件的截面侧视图。
图中所示的扁平薄带10用于对钢筋混凝土结构和墙砌体之类的结构件12进行补充加固。该扁平薄带以其一面14借助最好由环氧树脂构成的胶粘剂16固定在结构件表面,另外将其自由端32、34固定在结构件12上(图2)。
以图2为例,结构件12为钢筋混凝土构成的T型梁,薄带10以弧形绕过结构件的横梁22,同时弯过横梁22的角部24。
扁平薄带10具有一由大量同方向排列的易弯曲或柔性的碳纤维之类的增强纤维26和把增强纤维以耐剪切的方式连接起来的、由热塑性塑料组成的粘合剂基层28构成的复合结构。热塑性粘合剂基层28使扁平薄带在使用温度下相当坚硬并通过加热到高于玻璃临界点温度可塑性变形。为将首先为平面的扁平薄带10导过角部24,将扁平薄带的中间区域30加热到高于热塑性粘合剂基层的玻璃临界点温度并塑性弯曲近似90°绕过可能是圆角的角部边缘。在冷却到使用温度后,这一弯曲保持不变。
在图2所示的实施例中,采用的也是在提高温度的情况下使扁平薄带的一端32产生塑性变形进行固定的方法。用胶粘剂16将弯曲端32粘贴在结构件12上。扁平薄带的另一自由端34在压力和热的作用下变成锯齿状。将扁平薄带10的这一端34插入结构件10的充满胶粘剂的凹槽35中并当胶粘剂硬化时在这一凹槽中形成固定连接。
在图4所示的实施例中,扁平薄带10的自由端36在加热塑性变形的状态下被套在圆筒形张紧元件38上并固定在那里。张紧元件38在适当的张紧装置的作用下可按双箭头39的方向相向推移,从而使扁平薄带10借助胶粘剂16粘贴在结构件12上时被预张紧。如果将预张紧一直保持到胶粘剂硬化,会得到很好的加固效果。
在图5所示的实施例中,扁平薄带10螺旋缠绕并粘贴在一柱形结构件12上。为易于缠绕,将扁平薄带高温加热,从而在缠绕时扁平薄带很容易形成螺旋状。
可做如下概括:本发明为一种扁平薄带10,用于加固例如由混凝土、木材、钢材、天然石料或墙砌体构成的承载或传递负荷的结构件12。扁平薄带10具有一由大量同方向排列的易弯曲或柔性的增强纤维26和把增强纤维以耐剪切的方式连接起来的粘合剂基层28构成的复合结构。借助胶粘剂16可将其面对地固定在所要加固的结构件12表面。为使扁平薄带也能弯过结构件的棱角,本发明建议,粘合剂基层28由热塑性塑料构成。
Claims (10)
1.一种加固最好由混凝土构成的承载或传递负荷的结构件(12)的扁平薄带,它具有一由大量同方向排列的易弯曲或柔性的增强纤维(26)和把增强纤维以耐剪切的方式连接起来的粘合剂基层(28)构成的复合结构,并可借助胶粘剂(16)面对地固定在所要加固的结构件(12)表面,其特征在于,粘合剂基层(28)由热塑性塑料构成。
2.按权利要求1所述的扁平薄带,其特征在于,热塑性塑料的玻璃临界点温度至少为100℃,熔点至少为160℃。
3.按权利要求1或2所述的扁平薄带,其特征在于,热塑性塑料由聚烯烃、乙烯聚合物、聚酰胺、聚酯、聚甲醛、聚碳酸脂、聚氨脂和离子聚合物的一组中选出。
4.按权利要求1至3之一所述的扁平薄带,其特征在于,增强纤维含有碳纤维或由这类纤维构成。
5.按权利要求1至4之一所述的扁平薄带,其特征在于,增强纤维含有芳族纤维、玻璃纤维或聚丙烯纤维或由这类纤维构成。
6.把按权利要求1至5之一所述的预制的纵向延伸扁平薄带固定在结构件(12)上至少绕过结构件一个角部边缘(24)的方法,其特征在于,将扁平薄带要导过结构件角部边缘(24)的中间区域(30)加热至高于热塑性粘合剂的玻璃临界点的温度,在加热状态下弯成与结构件的角部或边缘棱角相应的角度,并在冷却前或冷却后,借助胶粘剂层(16)导过结构件边缘粘贴在结构件上。
7.把按权利要求1至5之一所述的预制的纵向延伸扁平薄带固定在一结构件表面的方法,其特征在于,将扁平薄带(10)连同其自由端在加热状态下套在或弯曲到各自的张紧元件上并固定在该元件上,张紧元件(38)彼此相对张紧,扁平薄带(10)处于预张紧状态下粘贴在结构件表面。
8.把按权利要求1至5之一所述的扁平薄带借助胶粘剂安装在结构件上的方法,其特征在于,在压力和热的作用下将扁平薄带(10)的自由端(34)压成波浪或锯齿形,在将薄带(34)装入结构件凹槽中时,在形成固定形状连接情况下胶粘剂填满波浪或锯齿形区域。
9.把按权利要求1至5之一所述的扁平薄带借助胶粘剂安装在结构件上的方法,其特征在于,将加热到高于粘合剂玻璃临界区温度的扁平薄带螺旋式缠绕在柱型结构件涂有液态反应性胶粘剂的表面,在缠绕状态下冷却至使用温度同时胶粘剂硬化。
10.按权利要求6至9之一所述的方法,其特征在于,在扁平薄带(10)与结构件连接的侧面上,至少部分通过去除粘合剂(28)而使增强纤维(26)裸露。
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DE19733067.3 | 1997-07-31 | ||
DE19733067A DE19733067A1 (de) | 1997-07-31 | 1997-07-31 | Flachband-Lamelle zur Verstärkung von Bauteilen sowie Verfahren zur Anbringung der Flachband-Lamelle an einem Bauteil |
Publications (2)
Publication Number | Publication Date |
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CN1251152A true CN1251152A (zh) | 2000-04-19 |
CN1127603C CN1127603C (zh) | 2003-11-12 |
Family
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Family Applications (1)
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CN98803602A Expired - Lifetime CN1127603C (zh) | 1997-07-31 | 1998-07-15 | 加固结构件的扁平薄带及将扁平薄带安装在结构件上的方法 |
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US (1) | US20020124930A1 (zh) |
EP (1) | EP1000208B1 (zh) |
JP (1) | JP2001512200A (zh) |
KR (1) | KR100417892B1 (zh) |
CN (1) | CN1127603C (zh) |
AT (1) | ATE208852T1 (zh) |
AU (1) | AU738490B2 (zh) |
BR (1) | BR9811578A (zh) |
CA (1) | CA2278650C (zh) |
DE (2) | DE19733067A1 (zh) |
DK (1) | DK1000208T3 (zh) |
ES (1) | ES2166612T3 (zh) |
HK (1) | HK1024039A1 (zh) |
HU (1) | HU223369B1 (zh) |
IL (1) | IL134118A (zh) |
NO (1) | NO314002B1 (zh) |
NZ (1) | NZ336978A (zh) |
PL (1) | PL335439A1 (zh) |
PT (1) | PT1000208E (zh) |
WO (1) | WO1999006651A1 (zh) |
Cited By (4)
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CN102121316A (zh) * | 2011-01-12 | 2011-07-13 | 北京交通大学 | 预张拉高强度纤维布加固圆形结构的施工方法 |
CN107663953A (zh) * | 2013-06-06 | 2018-02-06 | Sika技术股份公司 | 用于加固承载结构的系统和方法 |
CN109457992A (zh) * | 2018-10-30 | 2019-03-12 | 兰州大学 | 一种带锚固的体外粘贴加强混凝土结构的方法及应用 |
CN110453621A (zh) * | 2019-07-31 | 2019-11-15 | 姜素琴 | 一种防倾倒道路隔离墩 |
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AU2001227722A1 (en) * | 2000-01-13 | 2001-07-24 | Dow Global Technologies Inc. | Composites of reinforcing fibers and thermoplastic resins as external structuralsupports |
DE10032595A1 (de) * | 2000-07-07 | 2002-01-17 | Josef Scherer | Armierung für Bauwerksoberflächen |
US20020170651A1 (en) * | 2001-05-15 | 2002-11-21 | Edwards Christopher M. | Method for reinforcing cementitious structures |
FI20011069A (fi) * | 2001-05-22 | 2002-11-23 | Patenttitoimisto T Poutanen Oy | Uusia vetoelimien käyttöjä puurakentamisessa |
KR100471509B1 (ko) * | 2001-06-11 | 2005-03-08 | 고조 힌시츠 호쇼켄큐쇼 가부시키가이샤 | 구축물의 보강 방법, 보강 구조체 및 고연성재 |
WO2003027416A1 (fr) * | 2001-09-25 | 2003-04-03 | Structural Quality Assurance, Inc. | Construction de renforcement de structure, materiau de renforcement, dispositif permettant de resister aux tremblements de terre et procede de renforcement |
EP1331327A1 (de) | 2002-01-29 | 2003-07-30 | Sika Schweiz AG | Verstärkungsvorrichtung |
KR20030070251A (ko) * | 2002-02-23 | 2003-08-30 | 윤미숙 | 섬유보강 투수성 콘크리트 블록 및 그의 제조 방법 |
JP3903314B2 (ja) * | 2002-10-25 | 2007-04-11 | 清水建設株式会社 | 木造長尺部材の補修補強方法 |
WO2006039755A1 (en) * | 2004-10-12 | 2006-04-20 | The University Of Southern Queensland | A strengthening system |
KR100894492B1 (ko) * | 2008-04-23 | 2009-05-07 | (주)희상리인포스 | 아라미드 스트립 부재를 이용한 철근콘크리트 구조물의 내진보강 시공방법 |
IT1399040B1 (it) * | 2010-01-27 | 2013-04-05 | Fidia Srl | Procedimento per il rinforzo di elementi strutturali |
CN101929254B (zh) * | 2010-09-01 | 2011-09-28 | 中南大学 | 绕杆搭接锚固纤维片材加固结构构件的方法 |
WO2014138092A1 (en) * | 2013-03-04 | 2014-09-12 | Fyfe Co. Llc | Method of reinforcing a column positioned proximate a blocking structure |
JP6220542B2 (ja) * | 2013-04-15 | 2017-10-25 | ファイベックス株式会社 | 引張部材の定着構造 |
ITMI20131316A1 (it) * | 2013-08-02 | 2015-02-03 | Interbau S R L | Collegamento antisismico tra due elementi strutturali, particolarmente tra due elementi strutturali prefabbricati, del tipo trave-pilastro, trave-trave, trave-tegolo o simile. |
CH710538B1 (de) * | 2014-12-18 | 2018-09-28 | Re Fer Ag | Verfahren zum Erstellen von vorgespannten Bauwerken oder Bauteilen mittels Zugelementen aus Formgedächtnis-Legierungen sowie damit ausgerüstetes Bauwerk oder Bauteil. |
DE102017126447A1 (de) * | 2017-11-10 | 2019-05-16 | CHT Germany GmbH | Beschichtung von Faserprodukten mit wässrigen Polymerdispersionen |
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DE3318901A1 (de) * | 1983-05-25 | 1984-11-29 | Gustav 5140 Erkelenz Stange | Verfahren zur sicheren befestigung einer auf einer aussenflaeche eines flaechigen formlings aufgebrachten auflage im bereich der flaechenraender und formwerkzeug hierzu |
DE3843535A1 (de) * | 1988-12-23 | 1990-06-28 | Elastogran Kunststoff Technik | Verwendung von halbzeugen aus faserverstaerktem kunststoff fuer die herstellung von formkoerpern, insbesondere stossfaengertraeger |
US5937606A (en) | 1995-01-09 | 1999-08-17 | Eidgenossische Materialprufungs-Und Forschungsanstalt Empa | Securing of reinforcing strips |
DE19634840A1 (de) * | 1995-08-29 | 1997-03-06 | Erhard Vesper | Verfahren und Vorrichtung zur flächenhaften Aufbringung von Dekormaterial zur Verkleidung eines Formteils |
-
1997
- 1997-07-31 DE DE19733067A patent/DE19733067A1/de not_active Withdrawn
-
1998
- 1998-07-15 KR KR10-1999-7007053A patent/KR100417892B1/ko not_active IP Right Cessation
- 1998-07-15 PL PL98335439A patent/PL335439A1/xx not_active Application Discontinuation
- 1998-07-15 CN CN98803602A patent/CN1127603C/zh not_active Expired - Lifetime
- 1998-07-15 AT AT98941330T patent/ATE208852T1/de active
- 1998-07-15 ES ES98941330T patent/ES2166612T3/es not_active Expired - Lifetime
- 1998-07-15 JP JP2000505383A patent/JP2001512200A/ja active Pending
- 1998-07-15 CA CA002278650A patent/CA2278650C/en not_active Expired - Lifetime
- 1998-07-15 DE DE59802160T patent/DE59802160D1/de not_active Expired - Fee Related
- 1998-07-15 IL IL13411898A patent/IL134118A/xx not_active IP Right Cessation
- 1998-07-15 WO PCT/EP1998/004383 patent/WO1999006651A1/de active IP Right Grant
- 1998-07-15 US US09/341,747 patent/US20020124930A1/en not_active Abandoned
- 1998-07-15 PT PT98941330T patent/PT1000208E/pt unknown
- 1998-07-15 HU HU0004549A patent/HU223369B1/hu not_active IP Right Cessation
- 1998-07-15 DK DK98941330T patent/DK1000208T3/da active
- 1998-07-15 BR BR9811578-2A patent/BR9811578A/pt not_active IP Right Cessation
- 1998-07-15 NZ NZ336978A patent/NZ336978A/en unknown
- 1998-07-15 AU AU89752/98A patent/AU738490B2/en not_active Expired
- 1998-07-15 EP EP98941330A patent/EP1000208B1/de not_active Expired - Lifetime
-
1999
- 1999-09-29 NO NO19994733A patent/NO314002B1/no not_active IP Right Cessation
-
2000
- 2000-05-30 HK HK00103203A patent/HK1024039A1/xx not_active IP Right Cessation
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102121316A (zh) * | 2011-01-12 | 2011-07-13 | 北京交通大学 | 预张拉高强度纤维布加固圆形结构的施工方法 |
CN102121316B (zh) * | 2011-01-12 | 2012-12-12 | 北京交通大学 | 预张拉高强度纤维布加固圆形结构的施工方法 |
CN107663953A (zh) * | 2013-06-06 | 2018-02-06 | Sika技术股份公司 | 用于加固承载结构的系统和方法 |
CN107663953B (zh) * | 2013-06-06 | 2020-03-10 | Sika技术股份公司 | 用于加固承载结构的系统和方法 |
CN109457992A (zh) * | 2018-10-30 | 2019-03-12 | 兰州大学 | 一种带锚固的体外粘贴加强混凝土结构的方法及应用 |
CN109457992B (zh) * | 2018-10-30 | 2021-10-08 | 兰州大学 | 一种带锚固的体外粘贴加强混凝土结构的方法 |
CN110453621A (zh) * | 2019-07-31 | 2019-11-15 | 姜素琴 | 一种防倾倒道路隔离墩 |
CN110453621B (zh) * | 2019-07-31 | 2021-06-11 | 湖州泰益智能科技有限公司 | 一种防倾倒道路隔离墩 |
Also Published As
Publication number | Publication date |
---|---|
US20020124930A1 (en) | 2002-09-12 |
ES2166612T3 (es) | 2002-04-16 |
NZ336978A (en) | 2001-08-31 |
IL134118A0 (en) | 2001-04-30 |
DK1000208T3 (da) | 2002-02-25 |
PL335439A1 (en) | 2000-04-25 |
EP1000208B1 (de) | 2001-11-14 |
KR20000070791A (ko) | 2000-11-25 |
NO994733D0 (no) | 1999-09-29 |
AU8975298A (en) | 1999-02-22 |
CN1127603C (zh) | 2003-11-12 |
AU738490B2 (en) | 2001-09-20 |
CA2278650C (en) | 2003-01-21 |
HUP0004549A2 (hu) | 2001-04-28 |
JP2001512200A (ja) | 2001-08-21 |
HK1024039A1 (en) | 2000-09-29 |
IL134118A (en) | 2003-05-29 |
DE59802160D1 (de) | 2001-12-20 |
HU223369B1 (hu) | 2004-06-28 |
KR100417892B1 (ko) | 2004-02-11 |
HUP0004549A3 (en) | 2002-01-28 |
ATE208852T1 (de) | 2001-11-15 |
DE19733067A1 (de) | 1999-02-04 |
PT1000208E (pt) | 2002-05-31 |
BR9811578A (pt) | 2000-08-29 |
EP1000208A1 (de) | 2000-05-17 |
NO994733L (no) | 1999-09-29 |
NO314002B1 (no) | 2003-01-13 |
WO1999006651A8 (de) | 1999-08-12 |
WO1999006651A1 (de) | 1999-02-11 |
CA2278650A1 (en) | 1999-02-11 |
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