Different Methods on Predicting Deflections on Beams Reinforced with CFRP Bars  

作　　者：Drilona Disha Hektor Cullufi 

机构地区：[1]Department of Structural Mechanics,Faculty of Civil Engineering,Polytechnical University of Tirana,Tirane 1023,Albania

出　　处：《Journal of Civil Engineering and Architecture》2021年第4期193-197,共5页土木工程与建筑（英文版）

摘　　要：The use of fiber reinforced polymer(FRP)bars to substitute the steel bars in internal reinforcement is now an alternative in some structures subjected by corrosion.The strength,stiffness and bond characteristics of FRP bars are tested to understand their flexural behaviour.In this study is investigated the way of failure of beams reinforced internally with carbon FRP(CFRP)bars and their mechanical properties.Two sets of concrete beams reinforced with different diameters of CFRP bars are designed and tested under four-point loading methods.In general,beams reinforced with FRP bars show more deflections and greater values of crack width than beams reinforced with conventional steel,which is due to their low modulus of elasticity and general stiffness.In this paper is presented the calculation and comparison of deflection using different methods,such as ACI 440,CAN/CSA,Eurocode and experimental loading tests.The evaluation is done comparing the results of every method.This study is effective when we use beams with one layer of reinforcement.

关 键 词：Fibre reinforced with polymers CFRP bars DEFLECTION modulus of elasticity 

分 类 号：TU3[建筑科学—结构工程]