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Title |
An Evaluation of Progressive Collapse Resisting Capacity of RC Structure Using Static and Dynamic Analysis
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Keywords |
연쇄붕괴 ; 선형정적해석 ; 선형동적해석 ; 비선형정적해석 ; 철근콘크리트 모멘트저항골조 Progressive collapse ; Linear static analysis ; Linear dynamic analysis ; Nonlinear static analysis ; RC structure |
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Abstract |
Progressive collapse is defined as a collapse caused by sectional destruction of a structural member which links to other surrounding structures. Currently the design guidelines for the prevention of progressive collapse is not available in Korea. So, structural engineers have a difficulty in evaluating progressive collapse. In this study, the static and dynamic analysis to evaluate the methods and procedures are conducted using commercial analysis program for RC moment resisting frames. According to the study, DCR value of RC moment resisting frame system based on code in Korea is over 2 and it shows that it can’t provide alternate load paths due to the progressive collapse. And additional reinforcement should be considered for the progressive collapse resistance. As a result of vertical deflection and DCR value of linear static analysis and linear dynamic analysis, the results of dynamic analysis were underestimated more than the result of static analysis. Thus, the dynamic coefficient value of 2 provides conservative estimation.
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