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目前,后张预应力混凝土箱形梁已成为一种桥梁结构的常用型式。它与 T 梁及 I 字梁相比有着众多的优越性:完善的抗扭刚度,
At present, post-tensioned prestressed concrete box girder has become a commonly used type of bridge structure. It has many advantages over T-beams and I-beams: perfect torsional stiffness,