Research on Strengthening Measures of Arch Ring of Stone Arch Bridge
Stone arch bridge is one of the ancient architectural forms with a long history in our country.With the rapid development of modern society and economy,the traffic volume increases,and under the common influence of natural action and human activities,various damages in-evitably appear.This paper mainly describes the strengthening measures of old stone arch bridge arch ring and the concrete application in engi-neering cases,taking Zhenhai Bridge repair project as a case,analyzes the damage causes of stone arch bridge,and studies the strengthening technology of Zhenhai Bridge arch ring.Midas Civil software is used to establish the finite element model of the main structure,and the me-chanical characteristics of the arch ring of the main stress structure of the stone arch bridge are calculated and analyzed,and a steel plate belt structure suitable for strengthening the arch ring of the stone arch bridge is proposed.The results show that the steel belt reinforcement meas-ures adopted in this paper can not only effectively avoid the tensile stress of the stone arch ring,improve the mechanical performance of the main arch ring,improve the overall performance of the bridge structure,but also do not damage the original appearance of the old stone arch bridge.
Stone arch bridgeReinforcement measureStructural performanceFinite element analysis
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