چکیده مقاله
The strengthening of structures by using Fiber Reinforced Polymer FRP is a conventional and effective method throughout the world The reason for this acceptance is to obtain good results from these materials in compare with old materials In time of strengthening of structures by using FRP materials in traditional andnon prestressed methods, often the full usage of FRP materials′ capacity is not possible; also it is not possible to balance between the percentages of strengthened obtained and cost of project Therefore in this research the effect of prestressing as a new method for the flexural strengthening of reinforced concrete beam have been investigated In this research program, flexural strengthening by using CFRP plates as a non prestressed and prestressed have been carried out on 8 reinforced concrete beams Different level of prestressing ranging from 20 to 35% ultimate tensile strength of CFRP laminate were induced into the bonded plate by using external prestressing system as developed by researchers of this study The results show the desirable effect of prestressing on the increased loading and desirable usage of CFRP plates
کلیدواژهها
نویسندگان
h Hassanitabar
Academic Member of Civil Engineering Dept, agh ghala azad University
M.M Salehi Yanesari
M sc of Civil – Structural Engineering,karshiv consulting Engineering
M.H.A Beygi
h Hassanitabar Academic Member of Civil Engineering Dept, agh ghala azad UniversityM.M Salehi Yanesari M.sc of Civil – Structural Engineering,karshiv consulting Engineering
شیوه ارجاع
Hassanitabar, h and Salehi Yanesari, M.M and Beygi, M.H.A,1391,The Experimental Investigation of Flexural Behavior of Reinforced Concrete Beams Strengthened With Prestressed CFRP Plates,9th International Congress on Civil Engineering,Isfahan
ارائهشده در
مجموعه مقالات نهمین کنگره بین الملی مهندسی عمران19 اردیبهشت 1391 · اصفهان