Cross Electrified Railway Station Tied Arch Bridge Suspender Replacement Design

With the development of economy in our country,the demand for transportation capacity is increasing continuously.As an important part of the main road,the bridge plays a more and more important role.The tied arch bridge,the last twenty years has been the rapid development in our country,this type of bridge in our country has become a very important bridge.Tied arch bridge,suspender to connect the bridge deck and arch rib effect.In the course of the bridge,the bridge is affected by the role of the boom to pass to the arch rib,so as to ensure the overall stability of the bridge.There are still some deficiencies in the current design theory,and there is no uniform standard in the relevant design.In the process of a large number of replacement,the design is based on the subjective judgment of the designers.Therefore,there are many bridge accidents due to the failure of the boom in real life.According to the previous experience of the suspender replacement,to cross the electrified railway station tied arch bridge suspender replacement design research.Based on the background of the river viaduct arch bridge project,the necessity and the research situation at home and abroad firstly this paper simply introduces the research.At the same time,it makes a brief introduction to the anticipated goal of the study,and analyzes the main problems and the key technologies.Then introduces the engineering related situation and the current situation of the bridge,and analyzes the bridge disaster.Secondly,the research and analysis of the derrick replacement design.Then a model of tied arch bridge calculation results were analyzed,and the calculation results are related to the temporary suspender system analysis.Finally,combined with the actual project,the construction organization design of the replacement of the hanger rod is introduced.Based on existing literature,combined with the actual engineering of suspender replacement of tied arch bridge is studied in this paper,hope for the future similar project to provide certain help and reference.