Research On Mechanical Characteristics Of Reinforced Concrete Continuous Arcade Bridge

Along with urban bridges are constructed,people,s requirement for the appearance of the bridge is constantly improving,That requires the bridge could not only meet the increasing traffic flow,but also satisfy people’s aesthetic standard.Covered bridge is a kind of special bridge,which has building structure on the deck of bridge.The coverd bridge could meet the transportation and also could built various forms of commercial buildings on the deck of bridge,which could solve the problems of landless in the urban.However research on the covered bridge is still not carried deeply,the research on internal force about arcade bridge,especially for reinforced concrete arch covered bridge is not sufficient at present.The covered bridges have just been considered as a simply bridge,and the buildings on it have been considered as decoration structure,the influence of the column load to the continuous arch structure,s stress change has not been analyzed.Based on current conditions of research,the following research has been done in the paper:(1)The data of the ancient arch bridges and covered bridges are collected,conclude their development processes,introduce the basic function of covered bridge,expound the research status of covered bridge in the paper.(2)The theory about calculate internal force and calculate deflection for the arch bridge are introduced in the paper.(3)Based on a reinforced concrete nine span arcade bridge under construction,the paper establish the finite element model with the Midas civil analysis software in the paper.Calculate and analyze the laws of the arch bridge,s change of internal force under two kinds of situations,which means no column load(working conditions 1)and having column load(working conditions 2);calculate and analyze internal force of the models,conclude the influence of the column load to the continuous arch structure,s stress change,analyze the change of dangerous section under different working condition,thus conclude the rule of continuous arch structure,s stress change.(4)The change of dangerous section and stress change rule of continuous arch structure are found out.Based on those,some corresponding measures and Suggestions are given according to different situation,which could provide the beneficial reference for the similar projects.