Hai-bo Liu, Jinsheng Du, Xueliang Chang, Yingpeng Tan
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Closure schemes of Multi-span continuous rigid frame bridges
The closure of Multi-span continuous rigid frame bridge is one of important steps in its construction. The selection of closure scheme determines the deformation and stress state of the bridge when construction is completed. In this paper, based on the situation of Jing River Bridge, which is now under construction in Gansu Province, finite element method is applied to analyze and compare the inner forces, stress and deformation of the bridge with five possible closure schemes. As a result, the most reasonable and engineering feasible closure scheme is obtained.
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