四种预应力FRP筋材锚固体系的试验研究

涂永明; 吕志涛; 张继文; 钱洋

doi:10.13204/j.gyjz20081011

四种预应力FRP筋材锚固体系的试验研究

doi: 10.13204/j.gyjz20081011

1.
1. 东南大学混凝土与预应力混凝土结构教育部重点实验室,南京 210096;
2.
2. 东南大学建筑设计研究院,南京 210096

基金项目:

国家自然科学基金重点项目(50238030);国家自然科学基金资助项目(50178018);863计划项目(2001AA336010);教育部博士点基金新教师项目(20070286095)

详细信息

作者简介:
涂永明男 1978年8月出生博士讲师 E-mail:tuyongming@seu.edu.cn

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- 被引次数: 0
出版历程
- 收稿日期: 2008-02-20
- 刊出日期: 2008-10-20

THE EXPERIMENTAL STUDY ON THE FOUR TYPES OF FRP TENDON ANCHORAGE SYSTEMS

1.
1. Key Lab of RC&PC Structure of Ministry of Education,Southeast University Nanjing 210096;
2.
2. Architectural Design and Research Institute,Southeast University Nanjing 210096

摘要

摘要: 开发出安全、经济、实用的锚固体系是应用预应力FRP结构的前提条件。通过对我国现有张拉设备的套筒灌胶式、粘砂夹片式、带胶挤压式及带粘结护套的夹片式等四种FRP筋材锚固体系的试验研究,结果表明:粘结套筒长度大于200 mm时,套筒灌胶式锚固体系即可取得理想的锚固效果;粘砂夹片式和挤压式FRP筋材锚固体系的锚固性能不够稳定;带粘结护套的夹片式FRP筋锚固体系对表面经过处理的FRP筋材可取得较好的锚固效果。
- FRP筋 /
- 锚固体系 /
- 预应力
Abstract: Developing the safe,economical and practical anchorage system is the foundation of applying the structure prestressed by the FRP tendons.On the basis of the tension and anchorage equipments of prestressed structures inland,it has been carried out that the experimental studies on such four FRP tendon anchorage systems as sleeve-glue pattern,wedged jaw pattern with burned-on-sand,extruded pattern with glue and wedged jaw pattern with sleeve.According to our research results,the following conclusions are drawn.When the length of sleeve is more than 200mm,the sleeve-glue pattern anchorage system will meet the anchorage needs.The anchorage performances of the systems of the wedged jaw pattern with burned-on-sand and the extruded pattern with glue are unsteady.The wedged jaw pattern system with sleeve is satisfactory when the surface of the FRP tendon has been pretreated.
- FRP tendon /
- anchorage system /
- prestressing

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参考文献(5)

吕志涛.新世纪混凝土结构对新材料的挑战//北京:中国首届FRP应用技术学术交流会论文集.2002

[2] Lee J M,Gruffydd-Jones B,Burgoyne C J.Expansive cement couplers-A means of pre-tensioning fiber-reinforced plastic tendons,Construction and Building Materials,1995,9(6):431-423

[3] Mohamed Saafi,Houssam toutanji.Flexural Capacity of Prestressed Concrete Beams Reinforeed with Aramid Fibet Reinforced Polymer (AFRP)Rectangular Tendons,Construction and Building Materials,1998:245-249

[4] Antonio Nanni,Bakis Charles E.O'Neil,Edward F.Short-Term Sustained Loading of FRP Tendon-Anchor Systems.Construction and Building Materials,1996,10(4):255-266

[5] 阮积敏,王柏生,张奕薇.FRP筋的特点及其在混凝土结构中的应用.公路,2003(3)

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