Cyclic‐Loading Performance of Welded Flange‐Bolted Web Connections
Publication: Journal of Structural Engineering
Volume 119, Issue 12
Abstract
Cyclic‐loading tests were conducted on eight large‐scale welded flange‐bolted web steel moment connections. The objective was to investigate the need for supplemental welds on the beam web connection, for beam sections where the web accounts for a substantial portion of the beam's fluxural strength. Such supplemental web welds are currently required by model seismic codes in the United States. Results of the testing program showed highly variable performance among the eight specimens. Plastic rotations developed by the beams prior to connection failure were judged to be poor to marginal for severe seismic applications. All connections failed by fracture at or near the beam‐flange groove welds. Variability in the performance of the beam flange groove welds appears to have dominated the response of the specimens. This paper summarizes the test program and compares results to those of previous U.S. test programs. Concerns are expressed about the welded flange‐bolted web moment connection detail for severe seismic applications.
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References
1.
Anderson, J. C., and Linderman, R. R. (1991a). “Post earthquake repair of welded moment connections.” Rep. No. CE 91‐04, Dept. of Civ. Engrg., University of Southern California, Los Angeles, Calif.
2.
Anderson, J. C., and Linderman, R. R. (1991b). “Steel beam to box column connections.” Rep. No. CE 91‐03, Dept. of Civ. Engrg., University of Southern California, Los Angeles, Calif.
3.
Engelhardt, M. D., and Husain, A. S. (1992). “Cyclic tests on large scale steel moment connections.” Rep. No. PMFSEL 92‐2, Phil M. Ferguson Struct. Engrg. Lab., University of Texas, Austin, Tex.
4.
Joanes, L. J. (1992). “Investigation of groove welds for seismic steel moment connections.” Master's Rep., Dept. of Civ. Engrg., University of Texas at Austin, Austin, Tex.
5.
NEHRP recommended provisions for the development of seismic regulations for new buildings. (1991). Building Seismic Safety Council, Federal Emergency Management Agency (FEMA), Washington, D.C.
6.
Popov, E. P., Amin, N. R., Louie, J., and Stephen, R. M. (1986). “Cyclic behavior of large beam‐column assemblies.” Engrg. J., 23(1), 9–23.
7.
Popov, E. P., and Stephen, R. M. (1972). “Cyclic loading of full size steel connections.” Bull. No. 21, American Iron and Steel Institute (AISI), Washington, D.C.
8.
Recommended lateral force requirements and commentary. (1990). Structural Engineers Association of California, Sacramento, Calif.
9.
Schneider, S. P., Roeder, C. W., and Carpenter, J. E. (1991). “Seismic performance of weak‐column strong‐beam steel moment resisting frames.” Rep., Dept. of Civ. Engrg., University of Washington, Seattle, Wash.
10.
Seismic provisions for structural steel buildings. (1992). American Institute of Steel Construction (AISC), Chicago, Ill.
11.
Specification for structural steel buildings—allowable stress design and plastic design. (1989). American Institute of Steel Construction (AISC), Chicago, Ill.
12.
Structural welding code—steel. (1992). American Welding Society, Miami, Fla.
13.
Tsai, K. C., and Popov, E. P. (1988). “Steel beam‐column joints in seismic moment resisting frames.” Rep. No. UCB/EERC‐88/19, Earthquake Engrg. Res. Ctr., University of California, Berkeley, Calif.
14.
Uniform building code. (1991). International Conference of Building Officials, Whittier, Calif.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 119 • Issue 12 • December 1993
Pages: 3537 - 3550
Copyright
Copyright © 1993 American Society of Civil Engineers.
History
Received: Oct 7, 1992
Published online: Dec 1, 1993
Published in print: Dec 1993
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