The Research on the Inspection and Choice of Rehabilitation Method for the Steel Bridge

• Main Authors: Luen-Ming Su, 蘇倫民
• Other Authors: Shoei-Uei Wu、 Yao T. Hsu
• Format: Others
• Language: zh-TW
• Published: 1995
• Online Access: http://ndltd.ncl.edu.tw/handle/53738712142766529616

碩士 === 國立交通大學 === 土木工程研究所 === 83 === Steel bridges play an important part in modern traffic construction because their mechanical characteristics of material are superior to those of concrete ones. Steel bridges are often damaged within the valid years in use due to traffic accident, unsuitable driving skill, and natural erosion. I explore the effective methods of inspecting steel bridge prevalent damage condition, and various methods of rehabilita- tion. Besides, I study the factors that will influence the choice of rehabilitation methods employed in steel bridges. I also establish the hierarchy framework of choosing rehabilita- tion method. On the other hand, I adopt "Analytic Hierarchy Process (AHP)" to decide the weight of various criteria of evaluation; then I use "Multicriteria Evaluation with Qualita- tive and Quantitative to build the evaluating model. By doing these we can try to acquire the best method of rehabilitation. However, the emphases of rehabilitating steel bridges are put on safety, economics, and the society cost. Thus, the hierarchy framework of affecting the choice rehabilitation method is divided into four goals: the view of non-user, the view of user, the attribute of repairs, and the engineering economics. The goals are on the basis of 9 criteria. Next, I combine AHP and "Multicriteria Evaluation with Qualitative and Quantitative Data" as the evaluation model of my research. Finally, I do an assumed case study to demonstrate the evalua- tion model.