Research On The Key Technology Of Transverse Creep Of Concrete Curved Continuous Girder Bridge

In recent years,with the curved girder bridges are widely used in our country highway,city interchange and high-speed railway,many diseases due to the rapid growth of traffic volume and traffic bridge service life is gradually extended and has become increasingly prominent,which caused the accumulation of radial displacement of curved girder bridge lateral creeping(lateral displacement)phenomenon is more prominent,which is a unique curved beam bridge disease.Based on consulting a large number of concrete curved continuous girder bridge lateral displacement climbing literature based on the combination of disease characteristics analysis of curved bridge lateral creeping internal and external factors of the influence of two aspects,from two aspects of design and construction are summarized to prevent lateral creeping measures,summarizes the curve beam bridge lateral creeping treatment measures.In this paper,the anti creeping lateral limit facilities were studied detailed,processing,production,installation of a new lateral limit device can meet the inspection,easy maintenance,maintenance,replacement by assembling connection,combined with seismic pier reinforcement can solve the horizontal seismic bearing capacity the problem of insufficient.Finally,through the establishment of long-term monitoring system and the analysis of monitoring data,we set up the early warning index of bridge safety operation,and provide the experience for the solution of similar problems.