| dc.description.abstract | Taiwan is located along the circum-Pacific seismic zone where the earthquake happens frequently, structures will be threatened at any time. Therefore, the oil storage tanks and underground oil pipeline in the life cycle, in addition to the material by aging and long-term effects of atmospheric corrosion effects, often due to short-term load invasion earthquakes or typhoons and other natural disasters, which may result in reduced strength capacity. In addition, due to increased seismic hazard degree of oil storage tanks and underground oil pipeline and increased demand for seismic, Therefore, to meet the seismic design of the standards for the existing oil storage tanks and underground oil pipeline and to achieve the purpose of life extension, and seismic capacity assessment should be done to confirm the safety of oil storage tanks.
This study focused on seismic capacity of existing storage tanks of oil to establish a simple and a viable seismic assessment procedures, it is based on seismic demand of the newest building seismic design codes, and the program is divided into three stages. First is the preliminary assessment, according to tank and pipeline of the actual situation and the most recent test data in order to assess the project to form rating. The second stage is a detailed assessment (simple model), tank is reference to API650 to check the overall stability and stress by static and dynamic analysis, pipeline is reference to ASME B31.4 to check the stress of underground oil pipeline by static analysis. The third stage is a detailed assessment (complete model), to establish a complete model to the finite element analysis and inspected in accordance with the requirements of seismic design.
This study provides a computing programs of detailed assessment in accordance with the seismic assessment procedure (simplified model) , and hoping this assessment process to make the safety of oil storage tanks and underground oil pipelines can be fast and efficient. It can provide structural reinforcement of reference. This paper also collected seismic reinforcement methods of oil tank, which provides reference.
Keywords: oil storage tank、underground oil pipeline、seismic assessment、seismic reinforcement | en_US |