Load Transfer Mechanism And Deformation Mechanism Of Bridge Deck Pavement Oscillation Compaction Technology On The Bridge Structure

With the advantages of little vibration, lower energy consumption and outstandingcompaction effect, oscillation compaction technology has been widely applied to the bridge deckpavement and compaction. Given that the bridge deck pavement and compaction technologyserves as a direct factor that contributes to the pavement performance of a bridge, oscillationcompaction technology shows no assertive evidence that it has negative effect and invisibledamage to the bridge structure till today. In addition, it remains obscure that from whatmechanism the oscillation compaction technology would exert influence on the bridge structureduring the compaction process. Therefore, further research should be carried out on the loadtransfer mechanism and deformation mechanism of bridge deck pavement oscillation compactiontechnology on the bridge structure.Given the above context, this dissertation will firstly give introduction to the research onthe concept and features of oscillation compaction technology, carry out theoretical analysis onthe load transfer mechanism and deformation mechanism, and make research on the dynamicmodel of oscillation compaction. In the second part, based on the control parameter, compactness,smoothness of the bridge pavement performance, the evaluation index of the stability of thebridge, and taken into account the deflection, stress and natural frequency of the bridge, thisdissertation will put forth the control index on the bridge deck pavement oscillation compactiontechnology. In the third part, two types of finite element analysis software, namely, midas andansys, will be introduced on simulating the bridge over Laozhanghe River, which is my targetproject of this dissertation, and calculating its natural frequency. Meanwhile, the ansys softwarewill contribute to the simulation analysis of the dynamic response of Laozhanghe Bridge whenstatic compaction, oscillation compaction and vibrating compaction come into force respectivelyon the bridge. In the fourth part, an experiment will be completed on the basis of the conclusionmade from Laozhanghe Bridge project and the evaluation index of oscillation compactiontechnology, and consequently proving the presumption of the oscillation compaction technology. The research of my dissertation, on the one hand, may give a good proof to the advantagesof the oscillation compaction technology which outperformed other compaction technologies onbridge deck pavement, on the other hand, may hopefully provide theoretical standing ground ofbridge deck pavement oscillation compaction technology. Therefore, this dissertation would beuseful in making contribution to the development of the bridge deck pavement technology.