簡支型橋梁墩柱耐震補強費用推估

近年來全球有多起大規模的的天然災害發生，其中又以無預警的大規模地震發生次數最為頻繁，而橋梁除了日常的交通運輸作用外，在災害發生時亦是影響救災效率、人員疏散、物資運送的構造物;因此期望相關單位能在災前對橋梁做的補強評估中，可以藉本研究快速得到針對橋梁墩部的補強費用的的金額範圍。本研究利用易損性曲線之成果來推估橋梁墩部補強費用，從「單位橋面板所需橋墩補強費用」著手做深入的討論，擬定出一套研析的流程方法，這過程會使橋梁墩部補強總費用具有更詳細地考量實務的狀況以及現實條件。因此本研究訂定出一橋梁墩部補強費用期望值模型，用以估計橋梁墩部受地震破壞後之補強費用期望值。其中因子包含考量橋梁個階段破壞機率值的橋梁易損性曲線，及透過專家問卷方式取得之橋梁墩部在各破壞階段的單位補強費用範圍，最後乘上符合條件之橋梁橋面板總面積，即可得到橋梁墩部補強費用期望值。亦使用工程承受災害之風險評估輔助分析系統所分析出之新北市橋梁風險排序，套入到本研究計算出符合條件的新北市17座橋梁墩部的補強費用期望值，即可供橋梁相關單位參照使用。

關鍵字

橋梁墩部；補強費用；易損性曲線；橋梁風險；破壞機率

並列摘要

The world have occurred many natural disasters on a large scale in the recent years. The earthquakes without any warning have occurred frequently in natural disasters. And the bridge is not only used to transport, but also affect the relief efficiency, evacuation. Therefore, we expect the government can use this research to get repaired cost of the bridge pier rapidly in maintenances. This research will use fragility curves to estimate repaired cost of the bridge pier, the repaired cost of the unit of bridge slab is the object of intensive study. We will create the process for this research. This research would fulfill realistic situation even more by the process. And we will establish the expectation model of repaired cost of the bridge pier. This expectation model is used to estimate repaired cost of the bridge pier by earthquakes. First, we will use fragility curves of bridges to get the failure probability of the damage state. Second, we through the expect questionnaires to get repaired cost range of the unit of bridge slab in the damage state. In the end is multiplied by the total area of the bridge slab which comply the conditions. After all, we can get the expectation of repaired cost of the bridge pier. This research will also use New Taipei City bridge risk ranking which analyzed by risk assessment system of disasters. And added it in seventeen bridges which estimated by expectation model of the bridge pier. We can provide results to the government.

並列關鍵字

bridge pier ； repaired cost ； fragility curves ； bridge risk ； probability of the damage

參考文獻

[4] 許家銓，國立台北科技大學，「地震防災管理系統建置之研究」，2012年

[6] 何明錦、洪鴻智，內政部建築研究所「綜合性地震脆弱度與風險評估：以新竹市為例」，第111~126 頁，2009年

[10] 葉錦勳，國家地震工程研究中心「台灣地震損失評估系統-TELES」，2003年

[14] 梁逸帆，國立臺灣大學土木工程學研究所碩士論文，「橋梁易損性曲線的建立」，2004年

[13] G. H. Powell、R. Allahabadi，Earthquake Engineering and Structural Dynamics「Seismic Damage Prediction By Deterministic Methods:Concepts And Procedures」，Vol.16， p.719~734，1988.

國際替代計量

簡支型橋梁墩柱耐震補強費用推估

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