Overview
ABSTRACT
This article deals with the design of steel-concrete composite frames, distinguishing between nominally pinned, semi-continuous and continuous frames. Here, these frames are assumed to be plane. When the frames are laterally braced, simplified design methods may be used, as shown by a few simple worked examples. Some design basics are given for sway frames with nonlinear material properties and second order geometrical effects requiring the use of appropriate finite element software. Lastly, some practical information is provided on beam-column haunches, strengthening of column-bearing slabs, and building provisions for composite column bases.
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Jean-Marie ARIBERT : Emeritus University Professor – Consultant in steel-concrete composite construction - Former Director of the Structures Laboratory at INSA Rennes
INTRODUCTION
The calculation bases and expressions used to verify the dimensioning of composite beams with solid web, possibly coated, and with open web, have been provided respectively in articles
In this last article, the modeling of connections within a mixed framework has been characterized according to the classification of the connections, in strength or in stiffness, and according to the type of global analysis used for the framework, elastic, rigid-plastic or elastic-plastic.
What remains to be done, therefore, is to specify the overall analysis methods for determining the forces exerted on the above elements when they are part of a framework subjected to combinations of permanent and variable actions (at ULE and SLE).
In general, three-dimensional frame structures with steel and/or composite elements can be subdivided into several flat frames that can be considered as transversely supported at the three-dimensional nodes. This assumption is systematically applied.
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KEYWORDS
civil engineering | building | structures and properties | Buildings and other built environment | structural analysis | pinned | column-slab joints
Composite Steel and Concrete Construction Design of composite frames
Articulated and braced frames
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