| 摘要: |
| 运用复合形法数学优化方法,结合钢筋混凝土、全预应力与部分预应力混凝土设计理论,依据我国现行设计规范,提出将预应力度作为预应力混凝土结构优化设计的控制指标。在给定截面形式下,求解满足结构性能约束和构造约束条件的预应力筋最优用量以及预应力筋与非预应力筋的最优比值。 |
| 关键词: 复合形法,预应力度,优化设计 |
| DOI： |
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| Reinforcement Optimum Design for Prestressed Concrete Box Aqueduct |
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Zhu Wenrong Leng Changjian
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| Abstract: |
| Based on the present China's design specifications in combination with the design theory for reinforced, full-prestressed and part-prestressed concrete structure, a prestressed-degree was suggested as the control index of optimum design for prestressed concrete structure using the complex-shape mathematical optimum method. In the case of a given shape of structure cross-section, the optimum total of prestressed reinforcement and the optimum ratio of the prestressed and non-prestressed reinforcement can be obtained to satisfy the functional restraints and structural restraints. |
| Key words: i complex-shape method, prestressed degree, optimum design, |
