Three-dimensional progressive collapse analysis of reinforced concrete frame structures subjected to sequential column removal
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- 作者：Amir Hossein Arshian ; amir.hossein.arshian@uni-weimar.de ; Guido Morgenthal
- 关键词：Progressive collapse analysis ; Sequential column removal ; Nonlinear dynamic analysis ; Reinforced concrete frames ; Fiber-based modeling ; Compressive arching action ; Catenary action
- 刊名：Engineering Structures
- 出版年：2017
- 出版时间：1 February 2017
- 年：2017
- 卷：132
- 期：Complete
- 页码：87-97
- 全文大小：1316 K
- 卷排序：132
文摘
The alternate path mechanism in RC structures is studied for extreme initial damage. A numerical frame-work is proposed for sequential column-removal scenarios. Removal sequence of columns significantly influences the 3D redistribution of forces. Sequential column removal may induce larger section forces than the simultaneous one. A feasible strengthening technique is studied for activating the catenary mechanism.