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根据薄壁箱梁受力特点，将其结构内力理想化，由此提出了薄壁箱梁约束扭转的简化计算方法。
According to the force characteristics of thin-walled box girder, the internal forces of the structure are idealized, and a simplified calculation method of the constraint torsion of the thin-walled box girder is proposed.