Study On Construction Monitoring Technology Of No.1 Bridge In Mianyang City

Bridge construction monitoring technology in the bridge construction, bridge quality control plays an important role, along with the increasing range of statically indeterminate structure bridge construction, especially the long-span cable-stayed bridge, suspension bridge and continuous girder bridge in the process of construction, the construction monitoring becomes more and more brought to the attention of the bridge construction relevant parties, has become a bridge construction and a necessary part of the bridge construction quality control. At first, this paper discussed the research progress of the bridge construction monitoring technology at home and abroad and the development present situation at home and abroad, and analyzes the common methods of construction monitoring technology, working contents, technical route, etc., this paper expounds the importance of construction monitoring for large span cable-stayed bridge. After comprehensive comparison, in view of the mianyang city new district no.1 bridge using adaptive method to clear the construction monitoring, and has set up a complete construction monitoring and control system, including data acquisition system, data processing system and construction monitoring system, and determine the content of this bridge construction monitoring, target. Construction monitoring content for deviation linear monitoring, monitoring, girder bridge tower bridge tower stress monitoring, monitoring, the car completed bridge girder stress monitoring, pedestrian bridge linear, stress, cable force monitoring, monitoring the target to ensure that a slant tower after the bridge, the linear, such as stress, cable force meet the design requirements. Then, using the large general finite element software Midas/Civil and Dr Bridge 3.03 this bridge are analyzed in modeling, simulation calculation for each construction stage. Finally, gives the mianyang city new district no.1 bridge construction monitoring result of adopting the monitoring system, and will through the contrast analysis of monitoring results with the theoretical research and put forward the monitoring, the main reasons for the error of construction monitoring and control system of the running effect is evaluated, and sums up the mianyang city new district no.1 bridge bridge construction monitoring of experience and experience, puts forward the experience which can be used in the same type cable-stayed bridge construction control.