Simplified nonlinear progressive collapse analysis of welded steel moment frames

2009 ◽  
Vol 65 (5) ◽  
pp. 1130-1137 ◽  
Author(s):  
Cheol-Ho Lee ◽  
Seonwoong Kim ◽  
Kyu-Hong Han ◽  
Kyungkoo Lee
Keyword(s):  
Progressive Collapse ◽  
Moment Frames ◽  
Steel Moment Frames ◽  
Welded Steel ◽  
Collapse Analysis ◽  
Progressive Collapse Analysis

Evaluation of Dynamic Collapse Behavior of Steel Moment Frames Damaged by Blast

2011 ◽  
Vol 82 ◽  
pp. 404-409
Author(s):  
Kyung Koo Lee ◽  
Lan Chung ◽  
Sang Hyun Lee ◽  
Tae Won Park ◽  
Jieun Rho
Keyword(s):  
Progressive Collapse ◽  
Mitigation Strategies ◽  
Analysis Method ◽  
Moment Frames ◽  
Steel Moment Frames ◽  
Strain Rate Effects ◽  
Collapse Analysis ◽  
Alternate Path Method ◽  
Collapse Behavior ◽  
Progressive Collapse Analysis

Blast effects on structures and blast mitigation strategies have been vigorously studied in the world. The alternate path method, or common progressive collapse analysis method, of structures assumes the threat-independent removal of vertical load-carrying elements. However, in reality, a blast-induced column-missing event will produce the damage on adjacent structural elements and the rapid dynamic response of the structures. In this study, the strain rate effects on the dynamic collapse behavior of steel moment frames are investigated by performing the blast-induced sequential progressive collapse analysis. Then, the improvement of the progressive collapse analysis method is discussed based on the numerical results.

Comparisons of design methods for beam string structure based on reliability and progressive collapse analysis

Structures ◽  
2021 ◽  
Vol 33 ◽  
pp. 2166-2176
Author(s):  
Hao Zhou ◽  
Youbao Jiang ◽  
Sondipon Adhikari ◽  
Qianqian Yin ◽  
Jianguo Cai
Keyword(s):  
Progressive Collapse ◽  
Design Methods ◽  
Collapse Analysis ◽  
String Structure ◽  
Progressive Collapse Analysis

Machine learning applications for assessment of dynamic progressive collapse of steel moment frames

Structures ◽  
2022 ◽  
Vol 36 ◽  
pp. 927-934
Author(s):  
Yan Fei Zhu ◽  
Yao Yao ◽  
Ying Huang ◽  
Chang Hong Chen ◽  
Hui Yun Zhang ◽  
...  
Keyword(s):  
Machine Learning ◽  
Progressive Collapse ◽  
Moment Frames ◽  
Steel Moment Frames ◽  
Machine Learning Applications

Submarine Impact With the Oseberg Jacket

1992 ◽  
Vol 114 (1) ◽  
pp. 1-8
Author(s):  
T. C. Thuestad ◽  
F. G. Nielsen
Keyword(s):  
Time Series ◽  
Initial Level ◽  
Progressive Collapse ◽  
Structural Safety ◽  
Acceleration Time ◽  
The North ◽  
Structural Capacity ◽  
Collapse Analysis ◽  
The North Sea ◽  
Progressive Collapse Analysis

The Oseberg jacket was installed at the Oseberg field in the North Sea during the summer of 1987 and the production started on December 1, 1988. On March 6, 1988, a submarine accidentally impacted with the Oseberg jacket. This paper presents results from the evaluation of the importance of the damage to the overall structural safety. A nonlinear progressive collapse analysis is applied for the safety check. The theoretical computations are verified through evaluation of strain and acceleration time series recorded during the submarine impact. The reduction in the overall structural capacity of the jacket was in the order of 10 percent. However, the local member capacity was significantly reduced and it was necessary to remove the damaged member in order to obtain the initial level of safety.

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