| With the development of national economy and the improvement of road network,Continuous rigid frame bridge achieved rapid development for its unique advantages,and occupied an important position in the future of bridge construction. In the past,people’s knowledge about long-span continuous rigid frame bridge is notcomprehensive enough, the theory of construction monitoring is not perfect, resultingin some of the early completed long-span continuous rigid frame bridge has appearedmiddle span deflection, beam cracking and other diseases. As a very important workduring the construction of long-span continuous rigid frame bridge, constructionmonitoring, attracted the attention of a growing number of researchers. success ofConstruction monitoring, not only related to the safety of the bridge constructionprocess, and will affect the finally bridge state, the bridge performance and longevity.After twenty years research and practice, several kinds of construction monitoringtheory and methods was born and has been applied to different continuous rigid framebridge, but to the method,process and result of construction monitoring we don’t haveany effective post-evaluation standard No scientific post-evaluation methods toevaluate the merits of the construction monitoring methods and results of constructionmonitoring of long-span continuous rigid frame bridge, cause that the trulyinformation can’t be timely feedback to owners and management department after thecompletion of construction. To further enhance the theoretical level of long-spancontinuous rigid frame bridge construction monitoring, summarize the lessons of largespan continuous rigid frame bridge construction monitoring, improve the quality oflong-span rigid continuous frame bridge construction monitoring, post-evaluation oflarge-span continuous rigid frame bridge construction monitoring is urgent needed.This article briefly introduced the post-evaluation theory, studied the existingtheories and methods of long-span continuous rigid frame bridge constructionmonitoring, focusing on discuss the post-evaluation theory and method of long-spancontinuous rigid frame bridge construction monitoring, after a careful analysis of themethods, ranges, useing conditions and merits of various post-evaluation theories. Forlong-span continuous rigid frame bridge construction monitoring, select the ExtensionAHP as its post-evaluation methods and subsequently select the Extension AHP theoryto described in detail, after the establishment of the index system of long-spancontinuous rigid frame bridge construction monitoring evaluated the right of index using the Extension AHP method On this basis, introducted the Tangs correlationmethod, and use it to score the indexs which involving large amount of data.On the basis of theoretical studies, depending on the long-span continuous rigidframe bridge construction monitoring program, build finite element model to calculatethe theoretical value of the bridge linear, stress and other indicators, collected theactual value of indicators after the bridge construction monitoring is completed,did thepost-evaluation,drawn conclusions,and summed up the success of the lessons learned. |
