Experimental Analysis of Bolted Connections: Snug versus Preloaded Bolts
Publication: Journal of Structural Engineering
Volume 124, Issue 7
Abstract
The rotational stiffness of bolted connections can be properly predicted by means of the so-called “component method.” In this method, the T-stub plays a fundamental role, because it is used to compute the stiffness contribution of the most important joint components. For this reason, an experimental analysis on bolted T-stub assemblies has been performed. On the basis of this analysis, the possibility of predicting the axial stiffness of the T-stub assembly is investigated. In addition, as the joint behavior is strongly influenced by the bolt preloading, the experimental analysis has been performed applying three different levels of bolt preloading and, starting from the obtained experimental results, simple rules to take it into account are suggested. Finally, the reliability of the relationships derived from the T-stub analysis has been verified through the application of the component method to the prediction of the rotational stiffness of a wide number of tested specimens concerning extended end plate connections, both with snug-tightened and pretensioned bolts, collected in the technical literature.
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References
1.
Agerskov, H.(1976). “High-strength bolted connections subject to prying.”J. Struct. Div., ASCE, 102, 161–175.
2.
Aggarwal, A. K.(1994). “Comparative tests on end plate beam-to-column connections.”J. Constr. Steel Res., Elsevier Science, London, 30, 151–175.
3.
Astaneh, A.(1985). “Procedure for design and analysis of hanger-type connections.”Engrg. J., AISC, 22(2), 63–66.
4.
Bursi, O. (1990). “Behaviour of high strength bolts in bolted beam-to-column connections.”Proc., Appl. Stress Analysis Conf.
5.
“Eurocode 3: design of steel structures.” (1990). Commission of the European Communities.
6.
“Eurocode 3: Part 1.1: Joints in Building Frames (Revised Annex J).” (1997). CENT/TC250/SC3-PT9.
7.
Faella, C., Piluso, V., and Rizzano, G. (1994a). “Connection influence on the seismic behaviour of steel frames.”Proc., Int. Workshop and Seminar on Behaviour of Steel Struct. in Seismic Areas, STESSA '94, Chapman & Hall, Ltd., London, England, 590–599.
8.
Faella, C., Piluso, V., and Rizzano, G. (1994b). “Connection influence on the elastic and inelastic behaviour of steel frames.”Proc., Int. Workshop and Seminar on Behaviour of Steel Struct. in Seismic Areas, STESSA '94, Chapman & Hall, Ltd., London, England, 600–609.
9.
Faella, C., Piluso, V., and Rizzano, G. (1995). “Reliability of eurocode 3 procedures for predicting beam-to-column joint behaviour.”Proc., 3rd Int. Conf. on Steel and Aluminum Structures, 441–448.
10.
Faella, C., Piluso, V., and Rizzano, G.(1996a). “Some proposals to improve EC3-Annex J approach for predicting the moment-rotation curve of extended plate connections.”Costruzioni Metalliche, 4, 15–31.
11.
Faella, C., Piluso, V., and Rizzano, G. (1996b). “Experimental analysis of T-stub assemblies with snug tightened or pretensioned bolts.”Rapporto N.73, Dept. of Civ. Engrg., Univ. of Salerno, Italy.
12.
Fleischman, R. B., Chasten, C. P., Lu, L.-W., and Driscoll, G. C. (1991). “Top-and-seat angle connections and end-plate connections: Snug vs. fully pretensioned bolts.”Engrg. J., AISC, First quarter, 18–28.
13.
Humer, C., and Tschemmernegg, F. (1988). “A non-linear joint model for the design of structural steel frames.”Costruzioni Metalliche, 1.
14.
Jaspart, J. P., and Maquoi, R. (1995). “Effect of bolt preloading on joint behaviour.”Proc., Steel Struct., Eurosteel '95, Kounadis, A. A., ed., Balkema, Rotterdam, The Netherlands, 219–226.
15.
Jaspart, J. P., Steenhuis, M., and Weinand, K. (1995). “The stiffness model of Revised Annex J of eurocode 3.”Proc., 3rd Int. Workshop on Connection in Steel Struct.
16.
Kishi, N., and Chen, W. F. (1986). “Database of steel beam-to-column connections.”Struct. Engrg., Rep. No. CE-STR-86-26, School of Civ. Engrg., Purdue Univ., West Lafayette, Ind.
17.
Nethercot, D. A., and Zandonini, R. (1990). “Methods of prediction of joint behaviour: Beam-to-column connections.”Structural Connections: Stability and Strength, R. Narayanan, ed., Elsevier Applied Science, New York, N.Y.
18.
SSRC. (1987). Connections bibliography, G. Morris (ed.), Structural Stability Research Council, Task Group 25, University of Manitoba, Manitoba, Canada.
19.
Thornton, W. A.(1985). “Prying action—A general treatment.”Engrg. J., AISC, 22(2), 67–75.
20.
Weinand, K. (1992). “SERICON—Databank on joints in building frames.”Proc., 1st COST C1 Workshop.
21.
Yee, Y. L., and Melchers, R. E.(1986). “Moment-rotation curves for bolted connections.”J. Struct. Engrg., ASCE, 112(1), 615–635.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 124 • Issue 7 • July 1998
Pages: 765 - 774
Copyright
Copyright © 1998 American Society of Civil Engineers.
History
Published online: Jul 1, 1998
Published in print: Jul 1998
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