Simulation On Structural Reliability Of Cable-Stayed Aerial Crossing Pipeline Structure

As for the computation of reliability of construction structure, random method is somewhat precise in solving higher model non-linear problems in complex system. However, it is not commonly used in the analysis of complex structural engineering system because it involves complex computations of enormous mathematics operations. Besides, such factors as the number of variables, relative cumulative error, computer hardware and data-storing mode all exert comparatively great influence upon the outcome of analysis.By employing two kinds of project software Matlab and Ansys, the dissertation mainly gives a simulation analysis as to inclined Cable-Stayed Aerial Crossing Pipeline Structure, and upon this, the computer simulation as to the reliability of the structural components by means of random method.First, the dissertation presents an overall introduction of the spanning structure of large-and-medium-scaled pipelines as well as the application history and status quo of the inclined Cable-Stayed Aerial Crossing Pipeline Structure, with emphasis on basic theories and methods of current research concerning reliability, and thus reasonably determines the research focus and method.Next, a systematic modeling and simulation is presented as to the static properties, and dynamic properties such as anti-wind and anti-seism, the geometry non-linearity, the pipeline flaws as well as the invalidation form of the structure according to concerned theories closely related to actual projects, so that a basic referential criterion is offered for the analysis of the structures.Finally, according to the simulation analysis result, invalidation criterion of the components is reasonably determined, and the function of reliability function is established as to inclined Cable-Stayed Aerial Crossing Pipeline Structure, and still the above-mentioned function is rectified as to the obtaining of some parameter values and the computation of components reliability in concerned literature; in addition, a random simulation and integrative analysis is provided as to inclined Cable-Stayed Aerial Crossing Pipeline Structureby means of the Ansys finite element software, the Monte Carlo method and the Matlab Simulation Software. At the end of the whole dissertation, the optimization-theory-based Monte Carlo method is presented as an effective improvement against the defects of the Monte Carlo method in its analysis of multivariable, the solution of the higher mode non-linear complex problems. Upon all these, a contrastive analysis of simulation computation results and concerned data is presented.