American Society of Civil Engineers


A Design Method for Braced Steel Frames Comprising Semi-Continuous Composite Joints


by Michel Crisinel, (Section Leader, Swiss Federal Institute of Technology Lausanne ICOM — Steel Structures CH-1015 Lausanne EPFL, Switzerland) and Markus Kattner, Dr.Eng., (McKinsey&Company, Inc. Alpenstrasse 3 CH-8065 Zürich, Switzerland)
Section: Composite Systems, pp. 686-698, (doi:  http://dx.doi.org/10.1061/40616(281)60)

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Document type: Conference Proceeding Paper
Part of: Composite Construction in Steel and Concrete IV
Abstract: A design method for braced frames comprising semi-continuous partial-strength composite joints is proposed. In this design method, the ultimate load carrying capacity is calculated considering the plastic moment resistance of the composite joint in the hogging moment region as well as a defined percentage of the plastic moment resistance of the composite beam in the sagging moment region. The defined percentage depends on the required rotation at the support and is based on the assumption of a certain available rotation of the composite joint. This assumption is assured by design recommendations for composite joints on the basis of existing experimental studies.


ASCE Subject Headings:
Bracing
Composite structures
Load bearing capacity
Steel frames
Structural response
Ultimate loads