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预应力混凝土结构塑性计算理论与设计方法是理论界和工程界十分关注且较为棘手的问题之一。通过对比国内外混凝土设计规范和各研究机构对超静定预应力混凝土结构考虑塑性内力重分布的弯矩调幅设计建议,讨论相对受压区高度ξ和塑性转角θp对超静定预应力混凝土结构弯矩调幅设计建议的影响。提出合理安全的弯矩调幅设计建议。
Plastic theory and design method of prestressed concrete structure is one of the most concerned and difficult problems in theory and engineering. By comparing the design specifications of concrete at home and abroad and the design suggestions of bending moment AM of the statically indeterminate prestressed concrete structure considering the redistribution of plastic internal forces, the research on the relationship between the relative compression zone height ξ and the plastic rotation angle θp on the statically indeterminate prestressed concrete structure Impact of Moment AM Design Proposals. Proposed a reasonable and safe design of bending moment AM.