Calculation model of lled steel tube arch bridges based on the arch effect

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SUMMARY

    The concrete-filled steel tube (CFST) arch bridge having good span performance, superior bearing capacity, and graceful shape has been widely used. The CFST arch is restrained by the steel tube which significantly improves the compression resistance and spanning ability of the arch ribs, and the current braceless construction method of the arch bridge has matured, so the strong spanning ability, convenient construction method, and the ultra-high requirements for the foundation make the CFST arch bridge especially suitable for mountain and river canyons with treacherous terrain. Large-span arch bridges are often affected . . .

     

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