| 混凝土桥梁的优化等耐久性设计 |
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| 引用本文： | 屈文俊,车惠民.混凝土桥梁的优化等耐久性设计[J].土木工程学报,1998(4). |
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| 作者姓名： | 屈文俊 车惠民 |
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| 作者单位： | 同济大学
(屈文俊)，西南交通大学(车惠民) |
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| 摘 要： | 混凝土结构截面耐久性不等,是设计中不合理现象.本文以常遇大气环境下的混凝土桥梁为分析对象,从截面内钢筋脱钝时间相等入手,提出了混凝土桥梁等耐久性设计原则和方法;依据年均投资额的比较,提出了混凝土桥梁耐久性优化设计方法;算例说明:优化等耐久性设计可较大程度地延长桥梁结构耐久寿命,具有较好的经济效益.
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| 关 键 词： | 混凝土桥梁 等耐久性设计 耐久性设计优化 |
DESIGN OF OPTIMUM EQUAL DURABILITY ABOUT CONCRETE BRIDGES |
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| QM Wenjun Che Huimin.DESIGN OF OPTIMUM EQUAL DURABILITY ABOUT CONCRETE BRIDGES[J].China Civil Engineering Journal,1998(4). |
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| Authors: | QM Wenjun Che Huimin |
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| Affiliation: | QM Wenjun Che Huimin(Tongji University) (Southwest Jiaotong University) |
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| Abstract: | Unequal durability of the section are the imperfections in traditional design of concrete structures. By taking the concrete bridges under usual natural environment as analysis objective , the equal durability design principle and methods of concrete bridges are proposed based on that the depassivation time of reinforcement in the section is equal. According to the average yearly investment, the optimum durability design method of concrete bridges is suggested in this paper. It is proved by numerical example that greatly extending the durability of concrete bridges and better economic benefit .may be achieved by optimum equal durability design. |
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| Keywords: | concrete bridge equal durability design optimum durability design |
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