| With the urbanization is higher and higher,all kinds of buildings springing up rapidly.But these quickly built buildings have a hidden trouble.According to the investigation and study,our country’s construction have only 30 years life expectancy.In recent years,our country and many developing countries happened many continuous collapse let the hidden danger to the facts.Therefore,the prevention and control of continuous collapse research has important practical significance.the paper outline the continuous collapse’s Research results and specification of home and abroad,emphatically analyzed the related contents of design process of the component removal method,dismantle component selection,calculation and analysis method,continuous collapse’s load combination and destroy evaluation RCiterion.According to our current building structure design rules design two(7 degrees fortified and 9 degrees fortified)plane irregular building for continuous collapse related research as follows:1.Using finite element analysis software SAP2000 and PKPM establish irregular plane frame structure model,using the nonlinear static calculation method to analysis the rest of the structure.2.Study the damage degree of structure after each component failure,determine the importance of corner column,side column,turning Angle,and inner column for prevention and control the continuous collapse of structure.3.Analyse the continuous collapse resistance of each component failure in the area of irregular plane,compare the similarities and differences with other parts of the component failure.4.Using vertical PUSHOVER analysis method to research the influence on continuous collapse of Structural seismic fortification intensity and span and component bearing range.5.In view of the above analysis conclusion put forward relevant recommendations for the prevention and control of continuous collapsed.Provide theoretical support for engineering design and construction of continuous collapse resistance. |
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