Study on Overall Stability of High-Rise Steel Structure Framework Based on ANSYS Finite Element Calculation

摘要

the overall stability analysis and calculation of highrise steel structure framework is hot issue at present, and the main calculation means is the method of effective length. Taking the limitation of the method of effective length into account, the method based on ANSYS finite element calculation was applied to analyzing the overall stability of high-rise steel structure framework. The nonlinear analysis of big stress was made according to BEAM188 element, and the framework calculation model with three spans and 3m story height and 15 floors was build. The varying law of bending moment and displacement was calculated respectively under the condition of gravity load and the horizontal centralization wind load, and the distribution range of weak story was revealed. The study can provide certain reference for the overall stability analysis and calculation of high-rise steel structure framework in future.