Lifecycle Analysis for Transportation Infrastructure

交通基础设施的生命周期分析

• 批准号: 11450174
• 负责人: ITOH Yoshito
• 金额: $ 4.99万
• 依托单位: Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-11450174/
• 关键词: Lifecycle analysis; Transportation infrastructure; Bridge; Environmental load; Road; Corrosion; Accelerated exposure test; Flying salt; 地球環境負荷; リサイクル

An evaluation system for the lifecycle cost and the lifecylce-environmental load of bridges was established in this study. This system was applied to several bridges and the availability was investigated. Special attention was paid to the shortage of the information on the environmental effects on the lifecycle of the members of bridges. In order to obtain the fundamental data, accelerated exposure tests were 'then carried out focusing on the corrosion of steels. The variation of the weight decrease, the mean amount of thickness decrease, and the maximum of the amount of thickness decrease due to the corrosion were investigated. It was shown that the variation of weight decrease and the variation of thickness decrease were expressed with involution functions for time. Comparing the results of the exterior exposure tests and those of the accelerated exposure tests, the acceleration coefficients on the corrosion in these two tests were calculated. Correlation analysis between the amount of flying salt and the acceleration coefficients was conducted. The result insisted that the acceleration coefficients were highly correlated to the amount of flying salt and its relationship was able to be expressed by an involution function.

建立了桥梁全生命周期成本和全生命周期环境荷载的评价体系。将该系统应用于几座桥梁，并对其有效性进行了验证。特别值得注意的是，缺乏关于环境对桥梁构件生命周期影响的资料。为了获得基本数据，然后进行了加速暴露试验，重点是钢的腐蚀。研究了腐蚀引起的减重、减厚平均值和减厚最大值的变化规律。结果表明，减重和减厚随时间的变化均用对合函数表示。比较了外暴露试验和加速暴露试验的结果，计算了两种试验对腐蚀的加速系数。对飞盐用量与加速度系数进行了相关分析。结果表明，加速度系数与飞盐用量高度相关，其关系可以用对合函数表示。

项目成果

伊藤義人: "小数主桁橋梁と従来型橋梁のライフサイクル環境負荷とコストの比較研究"構造工学論文集. 46A. 12 (2000)

伊藤义人：“十进制主梁桥和常规桥梁的生命周期环境荷载和成本的比较研究”结构工程杂志 46A（2000）。

伊藤義人, 岩田厚司, 貝沼重信: "鋼材の腐食耐久性評価のための環境促進実験とその促進倍率に関する基礎的研究"構造工学論文集. 48A. 9 (2002)

伊藤义人、岩田敦、贝沼茂信：“钢铁材料腐蚀耐久性评价的环境加速实验和加速因素的基础研究”结构工程杂志48A（2002）。

C.Liu: "Multiobjective Lifecycle Management of Steel Bridges and Their Coating System"Optimization in Industry II. (in print). (1999)

C.Liu：“钢桥梁及其涂层系统的多目标生命周期管理”工业优化II。

Itoh, Y., Iwata, A. and Kainuma, S.: "Accelerated Exposure Test of Environmental Durability far Steels and the Estimation of Acceleration Coefficient"Journal of Structural Engineering. 48A(in Japanese). (2002)

Itoh, Y.、Iwata, A. 和 Kainuma, S.：“远钢环境耐久性加速暴露试验和加速系数的估计”结构工程杂志。

伊藤義人: "アルミニウム合金製防護柵の実車衝突に関する数値解析的研究"構造工学論文集. Vol.47A. 10 (2001)

伊藤义人：“铝合金防护栏实际车辆碰撞的数值分析研究”结构工程杂志第47A卷（2001）。