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INCREASING ROBUSTNESS OF RC STRUCTURES UNDER COLUMN LOSS SCENARIO |
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| รหัสดีโอไอ | |
| Title | INCREASING ROBUSTNESS OF RC STRUCTURES UNDER COLUMN LOSS SCENARIO |
| Creator | Said Elkholy, Bilal El-Ariss |
| Contributor | - |
| Publisher | ISEC PRESS |
| Publication Year | 2560 |
| Keyword | Progressive collapse, RC plane frames, External unbounded steel cables, Fiber element approach, Cable deviators, Catenary action |
| Abstract | This paper presents simple and effective technique to enhance robustness of reinforced concrete frames toprogressive collapse under column loss scenario. The response of the mitigated frames is analyzed usingfiber force-based finite element analysis and applying displacement-controlled nonlinear static pushdownat the location of failed column. The technique includes addition of external unbounded steel cables to thecontinuous beam in each floor at anchorage and deviator locations. The cables transfer the loads abovethe failed column to the anchorages and deviators that are assumed to perform as rigid arms, which in turnredistribute the loads to adjacent columns. The numerical model computes the frame building progressivecollapse robustness using push-down analysis to simulate a column elimination and estimate the effects ofcable catenary action on the frame. Two-dimensional RC frame of six stories and four bays was adoptedin the study. The numerical results demonstrate the prospect of resisting progressive collapse of RCstructures by implementing the presented technique. |
| ISBN | 978-0-9960437-4-8 |
