Establishment of A Preliminary Bridge Collapse Evaluation Mechanism

• Main Authors: Ping-jui Kuang, 匡柄瑞
• Other Authors: Dung-Mou Hung
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/76456658430952307861

碩士 === 國立中央大學 === 營建管理研究所 === 99 === 　　Taiwan is located in the Pacific earthquake ring of fire and on the path of typhoons occurring in summer seasons; therefore bridges are frequently damaged by earthquakes, scouring, or debris that result in interruption of traffic or even casualties. Currently, evaluation of bridge safety is performed by professional engineers collecting data and evaluating at the bridge sites; which requires huge amount of manpower and costs. 　　This research investigates the major factors which have significant impacts on bridge collapse by literature reviews and expert interviews. These factors are then weighted by the Analytical Hierarchical Process (AHP) method to establish a preliminary evaluation mechanism for bridge collapse due to earthquake, scouring, and debris. The established mechanism reveals similar performance with satisfactory results when tested against on site evaluations of 20 bridges. 　　This research also establishes a fast evaluation process to apply the established mechanism to the Taiwan Bridge Management System (T-BMS) to screen out the most dangerous bridges which have relatively high potential to collapse. These bridges should have higher priority to install prewarning monitoring systems and should obtain more attentions from the bridge management agencies. Results of this research should be beneficial to the tasks related to evaluations of bridge collapse and bridge safety.