Damage Evaluation Method for Steel Beams Subjected to Cyclic Loading

다국어 초록 (Multilingual Abstract)

Evaluating the cumulative damage of seismic members is an important issue in seismic design. Steel beams are the primary components of seismic moment-resisting frames, wherein the story drift angle and ductility factor with respect to the number of cycles are used as indices of the degree of damage. The former is widely used in the United States and several other countries, whereas the latter is used in Japan. Additionally, these indices are used to express the plastic deformation capacity up to the ultimate state determined by fracture or other failure modes. In this study, an appropriate evaluation method was developed based on the numerical analysis of sub-assemblies for determining the cumulative damage and plastic deformation capacity of steel beams. The analytical results indicate that a unifi ed evaluation is possible based on the relationship between the ductility factor of the beam of each steel grade and the number of cycles to fracture. The proposed method can be used regardless of geometric conditions, except in the case of short-span beams.

참고문헌 (Reference)

1 BRI (Building Research Institute), "Study on testing method for structural performance evaluation of steel structures" 2002

2 AIJ (Architectural Institute of Japan), "Structural steelwork specifi cation for building construction JASS6"

3 Tenderan, R., "Seismic performance of ductile steel moment-resisting frames subjected to multiple strong ground motions" 35 (35): 289-310, 2019

4 Kishiki, S., "Lowcycle fatigue performance assessment of current Japanese steel beam-to-column connections determined by ductile fracture" 182 : 241-250, 2019

5 Lee, K., "Low-cycle fatigue limit on seismic rotation capacity for US steel moment connections" 2004

6 Jiao, Y., "Low-cycle fatigue Behavior of Japanese steel beam-to-column connections" 2020 : 2020

7 "JIS (Japanese Industrial Standards) G 3136. Rolled steels for building structure"

8 FEMA(Federal Emergency Management Agency), "Interim testing protocols for determining seismic performance characteristics of structural and nonstructural components" 2007

9 JISF (the Japan Iron and Steel Foundation), "High performance 590 N/mm 2 steel for building structures (SA440), JISF Specification No. MDCR 0013–2004"

10 Touch, T., "Experimental study on fatigue characteristics of structural steel, part 3: Deformation capacities of various structural steels under large strain amplitudes" 2021

11 Zhang, X., "Experimental evaluation of reduced beam section connections to deep columns" 132 (132): 346-357, 2006

12 Sawamoto, Y., "Evaluation on plastic deformation capacity of steel beam ends with local buckling and fracture under cyclic loading using FE analysis" 85 (85): 105-115, 2020

13 Jiao, Y., "Evaluation of plastic energy dissipation capacity of steel beams suffering ductile fracture under various loading histories" 40 (40): 1553-1570, 2011

14 Mitani, I., "Effects of axial load and end-moment ratio on plastic rotation capacity of H-shaped steel beam-columns subjected to unequal end-moments" 370 (370): 80-, 1986

15 Takatsuka, K., "Effect of weld access hole on deformation capacity, Deformation capacity of welded beam-to-column connection subjected to repeated plastic strain Part 2" 77 (77): 453-459, 2012

16 Veletsos, A. S., "Effect of inelastic behavior on the response of simple systems to earthquake motions" 895-912, 1960

17 He, X., "Development of a connection equipped with fuse angles for steel moment resisting frames" 265 : 114503-, 2022

18 Somarriba, M., "Cyclicloading performance of steel beam-to-column moment connections to an I-section column" 148 (148): 04022025-, 2022

19 Calderoni, B., "Cold formed steel beams under monotonic and cyclic loading : experimental investigation" 65 (65): 219-227, 2009

20 Ballio, G., "A unified approach for the design of steel structures under low and /or high cycle fatigue" 34 (34): 75-101, 1995

21 Ono, T., "A study on low cycle fatigue characteristics of metallic material" 532 : 193-199, 2000

22 오상훈 ; 박해용, "A Study to Enhance the Deformation Capacity of Beam-to-Column Connections Using High Strength Steel Having High Yield Ratio" 한국강구조학회 16 (16): 73-89, 2016

23 Satoshi Yamada ; Yu Jiao, "A Concise Hysteretic Model of Structural Steel Considering the Bauschinger Effect" 한국강구조학회 16 (16): 671-683, 2016

24 Satoshi Yamada ; Yu Jiao ; Dong-Seok Lee ; Takanori Ishida ; Shoichi Kishiki, "A Concise Hysteretic Model of 590 N/mm2 Grade High Performance Steel Considering the Bauschinger Effect" 한국강구조학회 20 (20): 1979-1988, 2020