Ninghuai High Speed In North Jiangsu Irrigation Canal And Into The Hydrographic Bridge Main Bridge Construction Quality Supervision,

This article expounds in detail the method of bracket construct in special large continuous girder bridge of Subei Guangaizongqu on Ning-Huai high speed highway. And elaborate the research in entire process on administration and supervision on continuous girder bridge construction emphatically.The success experience has some available value in theory and application to the similar bridge construction, and is advantageous to further development in the prestressed concrete continuous girder bridge.Contents of this article main research as followed:1) Research on bridge disease caused by the bridge construction control which does not arrive the bridge plant.Through consults the domestic and foreign correlation datain formation, comprehensively understood the bridge plant disease especially in bracket construct. And carry on the analysis on factors which may cause accident.2) Research on system of quality control.In bridge construction, the flow which in order to guarantee the bridge in curity and the construction in accuracy constituted the bridge construction control system. Implementation flow management operation directly relations bridge construction progress and quality.3) Structure analysis in bracket construction control.Bracket construction control analysis is refers strictly according to the actual bracket construction order analog computation structure endogenic force and the distortion, not only must establish in the simulation bridge structure bracket construction process the structure analysis model, gradually increase and gradually increases the structural unit, causes the bridge structure the analysis and the computation conforms to in actual construction each kind of condition, moreover also must consider many correlations factors.4) The problem of deflection control in bracket construction.In the project construction, involves many influences such as girder body self-wight, the pre-stressed, the concrete shrinkage, construction load and so on. Construction deflection with many element of uncertainty related, also in the construction the load-changes as necessary, the girder body section composition also increases along with the pre-stressed muscle changes, therefore quite precise computation deflection in construction is important.5) Construction control, administration and supervision on construction of Ning-Huai high speed highway.Achieve the construction safely, satisfie specific linear and the stressful condition request, through the afterwards inspection is not enough, must take the engineering cybernetics as the foundation, to constructs the entire process to carry on real-time supervision and the construct control, like this can guarantee the security in the construction process, can guarantee the bridge line and the endogenic force satisfies the design request.