| 基于耐久性要求的预应力混凝土框架结构设计方法 |
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| 引用本文： | 张德锋,吕志涛.基于耐久性要求的预应力混凝土框架结构设计方法[J].工业建筑,2003,33(3):31-34,25. |
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| 作者姓名： | 张德锋 吕志涛 |
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| 作者单位： | 1. 上海建科预应力技术工程公司,上海,200032
2. 东南大学,土木工程学院,南京,210096 |
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| 基金项目： | 国家自然科学基金资助项目 (项目批准号 :5 99780 0 8) |
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| 摘 要： | 基于耐久性要求设计的预应力混凝土结构 ,能自动满足耐久性要求的裂缝控制宽度 ,但应用于超静定结构时 ,需要考虑预应力作用效应的影响。推导了单跨及对称双跨框架考虑预应力作用影响的计算公式 ,并对算例进行了分析 ,计算结果表明该方法简单实用
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| 关 键 词： | 预应力 框架结构 耐久性 裂缝控制 设计方法 |
THE DESIGN METHOD OF PRESTRESSED CONCRETE FRAME STRUCTURES BASED ON DURABILITY REQUIREMENTS |
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| Zhang Defeng.THE DESIGN METHOD OF PRESTRESSED CONCRETE FRAME STRUCTURES BASED ON DURABILITY REQUIREMENTS[J].Industrial Construction,2003,33(3):31-34,25. |
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| Authors: | Zhang Defeng |
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| Abstract: | The prestressed concrete structures designed based on durability requirements can automatically satisfy the crack control width required by durability.The effect of prestressing force must be considered when this method is applied to the redundant structures.The design formulas considering the influence of prestress action on single and symmetric double span frame structures are derived.Some examples are analyzed.The calculated results indicate that this method is simple and practical. |
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| Keywords: | prestressing force\ frame structures\ durability\ crack control\ design method |
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