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DYNAMIC FINITE ELEMENT SIMULATION FOR THE COLLAPSE OF WORLD TRADE CENTER

Lu Xinzheng Jiang Jianjing (Tsinghua University)  
Simulation for the Collapse of World Trade Center is processed in this paper with the finite element software of LS?DYNA The parameters used in the simulation are discussed with the numerical results The simulation is very close to the real conditions,which means that using proper numerical model can simulate such complex problems as the collapse of large building The numerical results also show that the softening of steel under fire and impact load of top floors are the two main reasons for the collapse If improving the steel fire-resistant ability or enhancing the ductility of the structure,the collapse can be avoided
【Fund】: 国家自然科学基金资助项目 (项目号 :599381 80 )
【CateGory Index】: TU312.3
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