| Summary: | 碩士 === 國立成功大學 === 土木工程學系專班 === 94 === To promote the quality of communication service, besides doing some emergency relief, the government is also constructing steel communication tower along the coast, mountainous area and also off-shore islands throughout the country. Recently, because of the popularity of cellular phone, a lot of new constructions and facilities have been set up.
Using steel structure to build communication tower has become first choice because it has enough strength and intensity. The limitation in building steel structure is also fewer than building concrete structure, while steel is also easier to be manufactured.
Taiwan is located in subtropical zone surrounded by ocean, suffers a lot of typhoon and rainstorm. The air has high humidity, while the average temperature and salinity is also high. These factors along with the pollution caused by industrial zone and vehicles have become the major threat on the corrosion problem of steel structure.
Because of bad design, improper use or maintaining work, the corrosion problem in steel structure often worse than expected, which also reduced its life span. This research using Delphi method、 Analytic Hierachy Process and Fuzzy Theory,etc to establish a model to evaluate the corrosion prevention of steel structure, which then can be used to determine the condition of corrosion prevention and also as the basis of the corrosion prevention control strategy. Furthermore it can also help correlated department to maintain the tower’s safety and ensure its normal operation. The model to evaluate the corrosion prevention of steel structure is proven practicable through field investigation of specialists.
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