Research on the Dismantling Sequence of Buckle Cables of Asymmetrical Cable-stayed Cantilever Assembly System
In order to ensure the safety during the rope removal process of the asymmetric cable-stayed buckle hanging system,a method of optimizable dismantling sequence of asymmetric cable-stayed buckle in sequence is proposed,in view of the shortcomings of the traditional rope-breaking method in terms of single rope removal sequence and no optimization,based on the principle of the influence matrix method.Taking a top-bearing CFST arch bridge as an example,the cable removal sequence optimization analysis is carried out.The results show that:1)The optimized cable removal plan effectively minimizes the arch ring displacement and axial force fluctuations.During the cable removal process,the safety reserves of the arch ring stress and buckle cable force are both high;2)This method is suitable for symmetric and asymmetric cable-stayed fastening system,and can quickly calculate the optimized cable removal sequence,which has a high reference value for the selection of the cable removal sequence for reinforced concrete arch bridges.
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