Approach to strengthening design of RC structures with CFRP composites

Wojciech Karwowski 

Warsaw University of Technology, Faculty of Civil Engineering, al. Armii Ludowej 16, Warszawa 00-637, Poland

Abstract

Using CFRP materials lately became a very popular method of strengthening structures. Those materials are very often used when it is necessary to strengthen reinforced concrete. There are two types of CFRP materials used for that kind of strengthening – stripes and mats, and three types of cases – bending, shear (torsion), and confinement. The paper presents some problems, which may appear in anchorage zone of CFRP strips, which are used for strengthening bending elements. There are three components involved in the process – CFRP material, surface of strengthened structure and adhesive. CFRP material is the strongest part in this connection, while surface of strengthened structure is the weakest one. Adhesive, which is set between them, should firmly bond these two materials. All those factors should be taken into consideration while making calculations. Different methods are presented in the paper.

 

Presentation: poster at E-MRS Fall Meeting 2005, Symposium G, by Wojciech Karwowski
See On-line Journal of E-MRS Fall Meeting 2005

Submitted: 2005-06-06 08:07
Revised:   2009-06-07 00:44