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    题名: 以可靠度劣化預測模式評估橋梁構件生命週期維護成本之研究;Lifecycle Assessment of Maintenance, Repair and Rehabilitation Costs: A Reliability Based Deterioration Modeling Approach for Bridge Components
    作者: 毛一祥;Mao,I-shiang
    贡献者: 營建管理研究所
    关键词: 橋梁;劣化;可靠度指標;維修成本;Bridge, Deterioration, Reliability Index, MR&R Cost
    日期: 2015-07-14
    上传时间: 2015-09-23 15:12:41 (UTC+8)
    出版者: 國立中央大學
    摘要: 橋梁生命週期中的營運維護費用,可透過大量數據的蒐集、建立合理客觀的劣化預測模式及採用適當的資料處理方法,而得到較客觀的估計。本研究將以一系統性的分析流程,先找出影響各橋梁構件之劣化因子,並以該因子所組成之屬性條件,去篩選出資料庫中與目標橋梁具有相近劣化行為之代表橋群。再由橋梁檢測值去定義一新的構件狀況指標(NCI),同時導入可靠度指標(Beta)的概念,將橋梁構件劣化程度予以量化。因此,利用所得代表橋群構件之檢測資料,即可歸納出目標橋梁之劣化模式。最後,再以該模式推估橋梁營運時期之維修成本。本研究成果依序主要達成以下目標:1.找出橋梁構件劣化之關鍵因子;2.建立以劣化因子為導向之橋群檢索系統;3.建立橋梁構件之劣化預測模式;4.估算橋梁生命週期之維修成本。;Bridge MR&R costs can be more objectively estimated if adequate historical data are collected and well processed, also a proper deterioration model is adopted. This study will first demonstrate a systematic approach to explore the key factors leading to bridge deterioration. The representative samples of bridges with similar behaviors of deterioration are then classified by the identified factors. A new condition index (NCI) is defined and the reliability index (Beta) is introduced to measure the deterioration quantitatively. The deterioration trend of the representative samples can then be determined. Finally, the maintaining cost of a bridge with the same deterioration behavior can be estimated. This study achieved the following objects: 1. Identifying the key factors leading to deterioration towards bridge elements; 2. Developing a bridge matching system to retrieve bridge samples by their attributes; 3. Developing a reliability-based deterioration model of bridge elements; 4. Demonstrating a systematic approach to estimate the MR&R cost of bridges.
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