Study On The Way Of Masonry Arch Bridge Reinforcement

With the development of economy and the rapid growth of highway traffic, theincreasing overweight and overrun vehicles have had a huge impact on the normaloperation of the Highway Bridge. bridge construction quality exists problem, materialof aging and the physical and chemical damage, structure of design defects, usingprocess in the conservation of does not in place, using environment and the naturaldisasters of damage role, caused many bridge exists security hidden, especially formasonry workers arch bridge, the construction of the early time and long time of use，causing greater security danger existing in most of the bridges. Therefore, these bridgesneed to be strengthened to ensure that the normal use at a later time.This article summarizes the strengthening method of existing masonry arch bridge.Theoretical analysis is done for the reinforcement method of arch ring beams or pickwidened bridge, and the analysis of the structure is made using big Marc General finiteelement analysis software.This combination of Changgeng bridge and Fengjing bridge arch bridge with twoinstances, on reinforcement method of reinforcement of arch ring of arch, study theanalysis results that have a significant effect, which can not only improve the bearingcapacity of arch ring, but also improve the mechanical effect of arch ring. Wideningdeck beams or pick methods can improve the traffic condition of bridges, increase theamount of traffic, but that’s not all bridges are available, you must take into account thearch ring of out-of-plane loads, especially for arch bridge span and width ratio isrelatively small, have to have analysis of bearing capacity of arch ring.