Cyclic Performance of Riveted Connections

by Roberto Leon, (M.ASCE), Univ of Minnesota, Minneapolis, United States,
Gabriel P. Forcier, Univ of Minnesota, Minneapolis, United States,
Charles W. Roeder, (M.ASCE), Univ of Minnesota, Minneapolis, United States,
F. Robert Preece, (M.ASCE), Univ of Minnesota, Minneapolis, United States,



Document Type: Proceeding Paper

Part of: Structures Congress XII

Abstract:

As part of a larger experimental project on seismic performance of older steel frames, seven concrete-encased and unencased connections were tested. The specimens consisted of both riveted and bolted T-stub connections as well as stiffened seat connections. The experimental tests and detailed finite element analysis indicate very different failure modes for the two types of connections. The T-stub connections, which utilized 3/4 in. rivets, failed primarily by slip between the beam and T-stub. The seated connections, which utilized 7/8 in. rivets, failed primarily by flexural deformations of the T-stub and tension yielding of the rivets. The concrete encasement, although containing minimal amounts of transverse steel, had a strong influence on the strength and stiffness of the connection.



Subject Headings: Bolted connections | Steel structures | Structural analysis | Stiffening | Earthquake resistant structures | Finite element method | Connections (structural) | Concrete frames

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