The Seismic Response Analysis Of Large-scale Cable-Suspending Pipes

Since the 21st century, China has entered a period of rapid development of the oil and gas pipeline project, the total mileage is expected to exceed 150,000 kilometers by 2020. In various ways of laying pipelines, Cable-Suspending pipes have been favored by more and more pipeline designers. Meanwhile, nearly half of cities are located at 7 degrees and above the earthquake zone in china, which constitutes a great threat to the life and property safety of people. Research the seismic response analysis of cable-suspending pipes structure has become an important issue in the pipeline engineering design.Based on the above background, this paper has done the following work:1. Using the FEA software builds the finite element model of Yesanhe suspension crossing engineering, and givs a method for calculating such structures is provided.2. By nonlinear static analysis and modal analysis, a relatively mature and scientific analysis and calculation method for stress analysis of similar structure.3. In addition, using the response spectrum method and the time history method the seismic response is analysed the different role response of one-dimensional and multi-dimensional seismic.4. Response the rule of the structure under extreme earthquake, then comparing linear time-history analysis and finite element time-history analysis. According to the calculation of Yesanhe suspension crossing engineering and the existing norms, proposing some areas need to be examined in the current specification.Currently, the related researches of seismic response for suspension pipeline spanning structure are not too much. Moreover, the specifications that can be refer have imperfections. The main conclusions of this paper about the Yesanhe pipeline project will provide some references for the design and safety of similar project, and include revision and improvement of relevant norms.