A new optimized performance-based methodology for seismic collapse capacity assessment of moment resisting frames

다국어 초록 (Multilingual Abstract)

Moment-resisting frames (MRFs) are among the most conventional steel structures for mid-rise buildings in many earthquake-prone cities. Here, a simplified performance-based methodology is proposed for the seismic collapse capacity assessment of these buildings. This method employs a novel multi-mode pushover analysis to determine the engineering demand parameters (EDPs) of the regular steel MRFs up to the collapse prevention (CP) performance level. The modal combination coefficients used in the proposed pushover analysis, are obtained from two metaheuristic optimization algorithms and a fitting procedure. The design variables for the optimization process are the inter-story drift ratio profiles resulting from the multi-mode pushover analyses, and the objective values are the outcomes of the incremental dynamic analysis (IDA). Here, the collapse capacity of the structures is assessed in three to five steps, using a modified IDA procedure. A series of regular mid-rise steel MRFs are selected and analyzed to calculate the modal combination coefficients and to validate the proposed approach. The new methodology is verified against the current existing approaches. This comparison shows that the suggested method more accurately evaluates the EDPs and the collapse capacity of the regular MRFs in a robust and easy to implement way.

참고문헌 (Reference)

1 Mazzoni, S., "The open system for earthquake engineering simulation(OpenSEES)user command-language manual"

2 Lignos, D. G., "Steel database for component deterioration of tubular hollow square steel columns under varying axial load for collapse assessment of steel structures under earthquakes" Center for Urban Earthquake Engineering, Tokyo Institute of Technology 2010

3 Sullivan, T. J., "Simplified pushover analysis of moment resisting frame structures" 25 (25): 621-648, 2018

4 Gupta, A., "Seismic demands for the performance evaluation of steel moment resisting frame structures" Department of Civil Engineering, Blume Earthquake Engineering Research Center, Stanford University 1999

5 Eads, L., "Pushover and dynamic analyses of 2-story moment frame with panel zones and RBS" Stanford University. 2012

6 Li Tian ; Canxing Qiu, "Modal pushover analysis of self-centering concentrically braced frames" 국제구조공학회 65 (65): 251-261, 2018

7 Yang, X. S., "Metaheuristics in Water, Geotechnical and Transport Engineering" Elsevier 2013

8 Vamvatsikos, D., "Incremental dynamic analysis" 31 (31): 491-514, 2002

9 "FEMA P695 (2009), Quantification of Building Seismic Performance Factors"

10 "FEMA 355c (2000), State of the Art Report on Systems Performance of Steel Moment Frames Subject to Earthquake Ground Shaking"

11 Maysam Jalilkhani ; Ali Reza Manafpour, "Evaluation of seismic collapse capacity of regular RC frames using nonlinear static procedure" 국제구조공학회 68 (68): 647-660, 2018

12 Chopra, A. K., "Evaluation of a modified MPA procedure assuming higher modes as elastic to estimate seismic demands" 20 (20): 757-778, 2004

13 Liu, Y., "Estimating seismic demands of singly symmetric buildings by spectrum-based pushover analysis" 17 (17): 2093-2113, 2019

14 Brozovič, M., "Envelope-based pushover analysis procedure for the approximate seismic response analysis of buildings" 43 (43): 77-96, 2014

15 Baltzopoulos, G., "Dynamic analysis of single-degree-of-freedom systems(DYANAS) : A graphical user interface for OpenSees" 177 : 395-408, 2018

16 Eads, L., "Dynamic analysis of 2-Story moment frame" Stanford University 2013

17 Antoniou, S., "Development and verification of a displacement-based adaptive pushover procedure" 8 (8): 643-661, 2004

18 Lignos, D. G., "Development and utilization of structural component databases for performance-based earthquake engineering" 139 (139): 1382-1394, 2013

19 Maddah, M. M., "Developing a modified IDA-based methodology for investigation of influencing factors on seismic collapse risk of steel intermediate moment resisting frames" 18 : 367-377, 2020

20 Eshghi, S., "Developing a methodology for seismic collapse probability assessment of existing mid-rise steel buildings" International Institute of Earthquake Engineering and Seismology (IIEES) 2020

21 Lignos, D. G., "Deterioration modeling of steel components in support of collapse prediction of steel moment frames under earthquake loading" 137 (137): 1291-1302, 2011

22 Minsheng Guan, "Combination model for conventional pushover analysis considering higher mode vibration effects" Wiley 28 (28): 2019

23 Kaveh, A., "Colliding Bodies Optimization: Extensions and Applications" Springer International Publishing 2015

24 Lignos, D. G., "Collapse assessment of steel moment frames based on E-Defense full-scale shake table collapse tests" 139 (139): 120-132, 2013

25 Han, S. W., "Approximate incremental dynamic analysis using the modal pushover analysis procedure" 35 (35): 1853-1873, 2006

26 Rahmani, A. Y., "An improved upper-bound pushover procedure for seismic assessment of high-rise moment resisting steel frames" 16 (16): 315-339, 2018

27 Abbasnia, R., "An improved displacement-based adaptive pushover procedure based on factor modal combination rule" 13 (13): 223-241, 2014

28 Tajik Davoudi, A., "An alternative modal combination rule for adaptive pushover analysis" 25 (25): 325-339, 2016

29 Abbasnia, R., "An adaptive pushover procedure based on effective modal mass combination rule" 52 : 654-666, 2013

30 Amini, M. A., "Adaptive force-based multimode pushover analysis for seismic evaluation of midrise buildings" 144 (144): 04018093-, 2018

31 Eshghi, S., "A study on influencing factors for simplified seismic collapse risk assessment of steel moment-resisting frames with intermediate ductility" 11 (11): 833-848, 2019

32 Eberhart, R., "A new optimizer using particle swarm theory" 2002

33 Chopra, A. K., "A modal pushover analysis procedure for estimating seismic demands for buildings" 31 (31): 561-582, 2002