Seismic collapse probability of eccentrically braced steel frames

다국어 초록 (Multilingual Abstract)

To quantitatively assess the safety against seismic collapse of eccentrically braced steel frame (EBSF) system, 24 typical EBSFs with <i>K</i>-shape and <i>V</i>-shape braces with seismic precautionary intensities 8 and 9 were designed complying with China seismic design code and relative codes to constitute archetype space of this structure system. In the archetype space, the collapse probability of the structural system under maximum considered earthquakes (MCE) was researched. The results show that the structures possess necessary safety against seismic collapse when they respectively encounter the maximum considered earthquakes corresponding to their seismic precautionary levels, and their collapse probabilities increase with increasing seismic precautionary intensities. Moreover, the EBSFs with <i>V</i>-shape braces have smaller collapse probability, thus greater capacity against seismic collapse than those with <i>K</i>-shape braces.

참고문헌 (Reference)

1 Lu, X., "Study on the seismic collapse resistance of structural system" 32 (32): 13-18, 2010

2 Lu, X., "Study on the seismic collapse resistance of RC frame structures with equal spans in zones with seismic intensity VII" 31 (31): 13-20, 2011

3 Shi, W., "Study on the collapse-resistant capacity of RC frames with different seismic fortification levels" 2009

4 Zhu, L., "Study on the collapse resistance capacity of steel frames considering local buckling of columns" Suzhou College of Science and Technology 2013

5 Xu, Q., "Seismic vulnerability of steel framework in service based on structural damage" 34 (34): 162-167, 2015

6 Lu, X., "Seismic damage simulation and analysis of typical RC frames of Xuankou school" 28 (28): 71-77, 2011

7 Chen, C. H., "Seismic collapse performance of concentrically steel braced frames" 2010

8 Zheng, S. S., "Seismic capacity analysis for steel frame structures considering cumulative damage" 45 (45): 32-37, 2015

9 Qi, Y., "Research on seismic collapse margin ratio of braced steel frame considering structural influencing coefficient" Hohai University 2014

10 Qi, Y., "Phenomenon of seismic collapse of weak story of CBSFs" 38 (38): 75-84, 2015

11 "Ministry of Housing and Urban-Rural Development; Load code for design of building structures"

12 "Ministry of Housing and Urban-Rural Development; Code for seismic design of buildings"

13 "Ministry of Construction; Code for design of steel structures"

14 "Low alloy steel covered electrodes"

15 Tang, D., "Influence of axial compression ratio to the seismic collapse resistance of RC frame structures" 32 (32): 26-35, 2010

16 Gu, Q., "Hysteretic Properties and Seismic Design of Steel Structures" China Architecture & Building Press 2009

17 "High strength low alloy structural steels"

18 Yu, X. H., "Fragility-based probabilistic seismic safety assessment of RC frame structures with infilled masonry walls" 47 (47): 260-265, 2014

19 FEMA, "Federal Emergency Management Agency; Quantification of building seismic performance factors" 2008

20 Hsiao, P. C., "Evaluation of the response modification coefficient and collapse potential of special concentrically braced frames" 42 (42): 1547-1564, 2013

21 Yongsheng Qi, "Efficient and automated method of collapse assessment" 국제구조공학회 13 (13): 561-570, 2012

22 Gu, L., "Collapse displacement analysis of the steel frame structure based on the damage index" Suzhou College of Science and Technology 2013

23 Ibarra, L. F., "Collapse assessment of deteriorating SDOF systems" 2002

24 Qi, Y., "Automated collapse assessment method based on Matlab and software interface technology" 46 (46): 1042-1045, 2015

25 Liel, A. B., "Assessing the collapse risk of California’s existing reinforced concrete frame structures: Metrics for seismic safety decisions" Stanford University 2008

26 Li, D., "Anti-collapse analysis of steel frame with different strong column coefficient" Suzhou College of Science and Technology 2013