Optimal strengthening of RC bridges with degradation in safety due to chloride induced deterioration

机译：最佳的RC桥梁加固，由于氯化物引起的劣化而导致安全性下降

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This paper describes a method of evaluating the degradation in safety and determining the optimum time and degree of strengthening for existing concrete bridges. For optimization of strengthening, the utility function is introduced to express the objective function as the measure of effectiveness of design lifetime, safety and load carrying capacity. The genetic algorithm (GA) was applied to a searching procedure of global extreme value of the objective function. Proposed method was applied on actual existing bridge of 44 years old.

机译：本文介绍了一种评估安全性下降并确定现有混凝土桥梁的最佳加固时间和加固程度的方法。为了优化加固效果，引入了效用函数，将目标函数表示为设计寿命，安全性和承载能力有效性的量度。将遗传算法（GA）应用于目标函数全局极值的搜索过程。拟议的方法被应用于实际已有44年历史的桥梁。

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《Reliability and optimization of structural systems: Assessment, design and life-cycle performance》|2006年|191-199|共9页
会议地点 Kobe(JP)
作者
H. Morikawa; S. Okamoto; S. Kishi;
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Department of Civil Engineering of Kobe University, Kobe, Hyogo, Japan;

JR-west Japan Consultants Company, Osaka, Japan;

Graduate School of Science and Technology of Kobe University, Kobe, Hyogo, Japan;

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2. Degradation Behaviour of Deteriorated RC Beams Strengthened with CFRP under the Compound Effects of Acid-Salt Mist and Carbon Dioxide [J] . Wei Wang, Yuan-zhou Wu, Zhongnian Fang Advances in civil engineering . 2021,第a期

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3. Improved time-dependent seismic fragility estimates for deteriorating RC bridge substructures exposed to chloride attack [J] . Fengkun Cui, Huihui Li, Xu Dong, Advances in Structural Engineering . 2021,第3期

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4. Optimal strengthening of RC bridges with degradation in safety due to chloride induced deterioration [C] . IFIP WG 7.5 working conference on reliability and optimization of structural systems . 2007

机译：由于氯化物诱导劣化引起的安全性降低的RC桥梁的最佳强化
5. Reliability of FRP-Strengthened RC Bridge Girders Considering Time-Dependent Deterioration [D] . Dardar, Safaa. 2020

机译：考虑时间依赖性恶化的FRP加强RC桥梁梁的可靠性
6. Deterioration of Basic Properties of the Materials in FRP-Strengthening RC Structures under Ultraviolet Exposure [O] . Jun Zhao, Gaochuang Cai, Lu Cui, 2016

机译：紫外线暴露下强化FRP的RC结构中材料的基本性能下降
7. OPTIMAL STRENGTHENING OF RC BRIDGES WITH DEGRADATION IN SAFETY DUE TO CHLORIDE INDUCED DETERIORATION [O] . Hidenori MORIKAWA, Sayaka OKAMOTO 2006

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8. Strengthening of Deteriorating Decks of Highway Bridges in Indiana Using FRPC. [R] . Sotelino, E. D., Teng, M. H. 2001

机译：利用FRpC加固印第安纳州公路桥梁恶化层。

Optimal strengthening of RC bridges with degradation in safety due to chloride induced deterioration

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