Practical Analysis of Flexibly-Connected Building Frames

by Kurt H. Gerstle, Univ of Colorado, Boulder, CO, USA,
Nevis E. Cook, Univ of Colorado, Boulder, CO, USA,

Document Type: Proceeding Paper

Part of: Materials and Member Behavior


Modeling of flexible connection behavior as elastic-perfectly plastic is proposed for analysis of building frames, and results based on this idealization are compared with fully non-linear analyses for frame substructures under gravity and lateral loading. It is concluded that the first-order effects of connection flexibility can be captured within engineering accuracy by linearly-elastic analysis under working loads, and by perfectly-plastic analysis at ultimate.

Subject Headings: Plastic analysis | Lateral loads | Frames | Steel structures | Gravity loads | Elastoplasticity | Building design | Steel frames

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