Finite Element Analysis Of Impact Of FRP Design Parameters To Reinforcement Effect Of Masonry Arch

Arch bridge, an eon-ancient bridge style, has great historical and cultural value. Many of them are still playing a role in traffic, maintenance and strengthening of them is necessary.Recently, there has been an increasing interest in the use of FRP in reinforcement works, and the research and application of FRP strengthened masonry structure is developing. Thetheoretical analysis of effectiveness and failure mode of strengthened masonry arch has achieved great result, but the influence of FRP design parameter on strengthened structure is still not clear. Most of the study achievement was get by experimental method, numerical study is still not mature.Based on the experiment masonry model of Oliveira, finite element models were built by ABAQUS. Taking FRP width and pasted position as variables, nine finite element models were built for calculation with load application. There were seven models, one was unstrengthened, other six were six combinations of FRP widths and pasted positions, every combination is a reinforcement scheme. The FRP widths are 60mm,100mm and 140mm, and the masonry arch were strengthened intrados and extrados. Analyzing the data of load and displacement, the result proves that FRP contribute to the loading capacity and deformability of reinforcement masonry archs. When selecting strengthening scheme in practical project, strengthening effect and cost of every scheme must be considered. Value engineer combines technical and economical methods to analyze design of FRP widths and location, in order to control engineering cost and save resources. In this paper, the optical solution obtained by valus analysis on six strengthening schemes.To find the optimal FRP width, this paper adopt a value of analyze to every scheme.