Browse > Article

Seismic Design and Testing of Reduced Beam Section Steel Moment Connections with Bolted Web Attachment  

Lee, Cheol Ho (서울대학교 건축학과)
Kim, Jae Hoon (서울대학교 건축학과)
Publication Information
Journal of Korean Society of Steel Construction / v.17, no.6, 2005 , pp. 689-697 More about this Journal
Abstract
Recent test results on reduced beam section (RBS) steel moment connections show that specimens with a bolted web connection tend to perform poorly due to premature brittle fracture of the beam flange at the weld access hole. A review of previous test results indicates that the higher incidence of base metal fracture in bolted-web specimens is related, at least in part, to the web bolt slippage and the high stress concentration at the weld access hole with the lowest material toughness. The practice of providing web bolts uniformly along the beam depth based on the classical beam theory is questioned in this paper. A new seismic design procedure, which is more consistent with the actual load path identified from the analytical and experimental studies, is proposed together with improved connection details. A test specimen designed following the proposed procedure exhibited a cyclic connection rotation capacity sufficient for special moment frames without fracture.
Keywords
reduced beam section; steel moment connection; bolted connectioin; slip; brittle fgracture; seismic design;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Chen, S. J., Yeh, C. H., and Chu, J. M. (1996). Ductile steel beam-to-column connections for seismic resistance, J. Struct. Engrg., ASCE, 122(11), pp. 1292-1299   ScienceOn
2 Chi, B. and Uang, C.-M. (2002). Cyclic Response and Design Recommendations of Reduced Beam Section Moment Connections with Deep Column, J. Struct. Engrg., ASCE, 128(4), pp. 464-473   ScienceOn
3 Jones, Sl. L., Fry, G. T., and Engelhardt, M. D., (2002). Experimental Evaluation of Cyclically Loaded Readuced Beam Section Moment Connections, J. Struct. Engrg., ASCE, 128(4), pp. 441-451   ScienceOn
4 Krawinkler, H. and Popov, E. P. (1982). Seismic Behavior of Moment Connections and Joints, J. Struct. Division., ASCE, 108(2), pp. 373-391
5 Lee, C.-H., Jeon, S.-W., Kim, J.-H., Kim, J.-H., and Uang, C.-M. (2004), Seismic Performance of Reduced Beam Section Steel Moment Connections: Effects on Panel Zone Strength and Beam Web Connection Method, Proc., 13th World Conf. of Earthquake Engrg., Paper No. 3449, Vancouver, B.C., Canada
6 Lee, C.-H., Jeon, S.-W., Kim, J.-H., Uang, C.-M. (2005). Effects of Panel Zone Strength and Beam Web connection Method on Seismic Performance of Reduced Beam Section Steel Moment Connections, 2005 December issue of J. Struct Engrg., ASCE, (in-press)
7 Plumier, A. (1997). The dogbone: back to the future, Engrg. J. 34(2), pp. 61-67
8 Ricles, J. M., Mao, C., Lu, L. W., and Fisher, J. W. (2002). Inelastic Cycle Testing of Welded Unreinforced Moment Connections, J. Struct. Engrg., ASCE, 128(4), pp. 429-440   ScienceOn
9 Zekioglu, A., Mozaffarian, H., Chang, K. L., and Uang, C.-M. (1997). 'Designing after Northridge,' Modern Steel Constr., 37(3), pp. 36-42
10 이철호 등(2002), 고성능 내진 용접 철골모멘트 접합부 개발 및 설계지침 작성, 공동연구보고서, 포항산업과학원/현대건설 기술연구소
11 Iwankiw, N. (1997). Ultimate strength consideration for seismic design of the reduced beam section (internal plastic hinge), Engrg. J. 34(1), pp. 3-16
12 Tsai, K. C., and Popov, E. P. (1988). Steel beamcolumn joints in seismic moment resisting frames, Rep. No. UCB/EERC-88/190, Earthquake Engrg
13 Res. Ctr., University of California, Berkeley, Calif.
14 SAC (2000). Seismic design criteria for new moment-resisting steel frame construction, Report No. FEMA 350, SAC Joint Ventrue, Sacramento, Calif
15 Gilton, C. S. and Uang, C.-M. (2002). Cyclic Response and Design Recommendations of Weak-Axis Reduced Beam Section Moment Connections, J. Struct. Engrg., ASCE, 128(4), pp. 452-463   ScienceOn
16 Goel, S. C., Stojadinovic, B., and Lee, H.-K. (1997). Truss analogy for steel moment connections, Eng. J. 34(2), pp. 43-53
17 Engelhardt, M. D., Winneberger, T., Zekany, A. J., Potyraj, T. J., (1998). Experimental Investigations of Dogbone Moment Connections, Engrg. J., 35(4), AISC, Fourth Quarter, pp. 128-139
18 Lee, C,-H., Kim, J,-H., (2004). Seismic Design of Reduced Beam Section Steel Moment Connections with Bolted Web Attachment, Proc. of SEEBUS 2004, pp. 259-268, Taiwan
19 HKS (2001) ABAQUS User's Manual, Version 6.2 Hibbit, Karlson & Sorenson, Inc., Pawtucket, Rhode Island