Analysis Of The Continuous Collapse Of Building Structure With A Conversion Layer

In recent years,the study of successive collapses has gone through three revolutions,from the collapse of the first British apartment to the recent US "911" New York World Trade Center,a continuous collapse of four decades of foreign scholars for the anti-continuous decline in the structure of the building has been In the continuous improvement to the United States and the European norms as an example GSA2003 and DOD2010 are more systematic on how to resist the continuous collapse of the description.But the domestic research is still in its infancy,in our norms,only a general introduction to the continuous collapse of the design principles,anti-continuous collapse of the design principles and solutions are not elaborated.And the continuous decline of the domestic architectural structure of the study focused on the traditional framework,with a high-level structure with the conversion layer involved is not deep.Therefore,the study of the anti-continuous collapse performance of the building structure with the conversion layer can not only make up for this gap,but also can help improve our anti-continuous collapse design specifications.The main contents of this paper are as follows:(1)The use of SAP2000 finite element software,respectively,the use of linear static,linear dynamic,nonlinear static and nonlinear power of the four methods with the transition layer of the first layer of the short side of the column removed,given the details The analysis of the steps,comparative analysis of the different methods and advantages and disadvantages;(2)The non-linear dynamic analysis method is used to remove the components of the first-layer structure,the transition layer structure and the top-structure pillar,the long-side pillar and the internal column.The influence of the failure of the different components on the overall structure and the collapse,The anti-continuous collapse ability of the diagonal column,side pillar and internal column was evaluated.(3)to find out the most impact on the structure of the continuous collapse of the components,and analyze the reasons,put forward the best component reinforcement position.Finally,we summarize the methods and related measures to prevent the collapse of the structure.