Characteristic Analysis Of The Local Tower With Temporary Consolidation About Cable-Stayed Bridge

The cable-stayed bridge becomes more and more popular in the national life with the vigorous development of China’s transportation, and the structure of the system is becoming more and more diversified. At present, we use the cantilever construction method in build long-span cable-stayed bridge, so, both the floating system cable-stayed bridge and the half floating system cable-stayed bridge of tower and beam separation in order to prevent the unbalance of overturning moment and longitudinal-lateral horizontal component because of construction loads, and Structure dead load. We must be temporary consolidation in the tower and beam combination before the cantilever construction. In this time, the corbel of the main tower support larger vertical and horizontal force. Therefore, there are the important details that the tower of the local force in temporary consolidation segment, we must be considered in design of cable-stayed bridge. We research local displacement, distribution state of the principal stress and transfer rule of internal force to ensure that the main tower is safe and reliableIn this paper, taking the Dongshuimen Changjiang River bridge as the background project. We choose three different schemes of temporary consolidation of tower and beam, according to the construction process using the finite element software Midas to establish the finite element model of the whole space, analysis the stress condition of the local main tower on temporary consolidation segment, and According to the result of the analysis,then, According to the actual boundary conditions, use the finite element software Ansys to establish the entity unit model of The local main tower. Analysis the stress characteristics of the local main tower In three kinds of temporary consolidation scheme. Make clear the situation of displacement, distribution state of the principal stress, transfer rule of internal force, evaluation safety, and, provide the optimization scheme for bridge construction and temporary consolidation.I hope the results of this study can provide reference for the study on the local main tower of the same type bridge in the future.