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笔者通过高速公路施工实践，介绍了后张法３０ｍ预应力混凝土Ⅰ型梁侧弯问题的有效控制方法。
Through the highway construction practice, the author introduces the effective control method of the 30m prestressed concrete Beam Ⅰ bending type after the post-tensioning method.