In the 1970s and 1980s, South Africa, Europe and other countries successively used the cantilever casting method to build a number of large-span arch bridges. In the 1960s, Former Yugoslavia completely adopted the cantilever casting method to successfully build two large-span arch bridges. In the 1950s, the arch bridge began to be built by cantilever construction technology. The method and experience of this paper can provide a reference for the arch bridge constructed by cantilever casting. The initial cable force is only tensioned once, improving work efficiency. The calculated cable force agrees with the measured cable force, and the deviation is less than 2%. The deviation between the calculated and measured stress is less than 12%. The maximum tensile stress of concrete arch during the cantilever casting process is 1.52 MPa, meeting the specification requirements. The practical engineering results show that it is feasible to calculate the initial buckle force. Then, using the influence matrix, the initial buckle cable force was optimized by reducing the allowable tensile stress of concrete in stages, and finally the optimal initial cable force was obtained. Firstly, the stress balance equation considering only tensile stress was derived for the first time, and the feasible region of the initial cable force was calculated by the allowable tensile stress of the arch rib, which improved the original stress balance method. Relying on the 180 m-span Jiming Sansheng Bridge, this paper put forward one method to calculate the initial buckle cable force based on the stress balance method. It is difficult to calculate the buckle cable force for the cantilever casting concrete arch bridge.
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