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Connection Flexibility in Steel Frames

  • W. F. Chen

Abstract

In conventional analysis and design of steel frameworks, it is convenient to represent the beam-to-column connection as a joint point and to represent its moment-rotation behavior by idealized joint models. Two of the most commonly used idealized models representing the two extreme cases of connection behavior are the rigid-joint model and the pinned-joint model. For the rigid-joint model, it is assumed that the rotational continuity between adjoining members is fully realized. As a result of this assumption, the angle between adjacent members remains unchanged as the frame deforms and the full moment of the beam is transmitted to the column. This type of joint is known as the moment connection and is designated by the American Institute of Steel Construction (AISC) as Type 1 (Rigid) Framing Construction is the present Allowable Stress Design (ASD) Specification (AISC, 1978). For the pinned-joint model, it is assumed that the rotational continuity between adjoining members is nonexistent. Consequently, no moment is transmitted to the column by the beam. This type of joint is known as the shear connection and is designated by AISC as Type 2 (Simple Framing) Construction in the present ASD Specification.

Keywords

Joint Moment Constructional Steel Research Load Sequence Panel Zone Joint Translation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Van Nostrand Reinhold Company Inc. 1988

Authors and Affiliations

  • W. F. Chen

There are no affiliations available

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