Evaluation by a finite element method of the flexibility factor and fixity degree for the base plate connections commonly used
Using finite element approach, we have determined the flexibility factor and fixity degree of connections between a steel column and a reinforced concrete foundation. Two types of connections are studied. The first one consists of a base plate welded to the end of column and attached to the rei...
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| Datum: | 2007 |
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| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | English |
| Veröffentlicht: |
Інститут проблем міцності ім. Г.С. Писаренко НАН України
2007
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| Schriftenreihe: | Проблемы прочности |
| Schlagworte: | |
| Online Zugang: | http://dspace.nbuv.gov.ua/handle/123456789/48157 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Evaluation by a finite element method of the flexibility factor and fixity degree for the base plate connections commonly used / M. Hamizi, N.E. Hannachi // Проблемы прочности. — 2007. — № 6. — С. 35-50. — Бібліогр.: 20 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| Zusammenfassung: | Using finite element approach, we have determined
the flexibility factor and fixity degree of
connections between a steel column and a reinforced concrete foundation. Two types of connections
are studied. The first one consists of a
base plate welded to the end of column and attached
to the reinforced concrete foundation by
two anchor bolts. These bolts are placed on the
major axis of the I-shaped section used as column.
In the second configuration, the connection
comprises a base plate and four anchor
bolts placed out side the flanges of the I-shaped
section. Two types of loadings are used, first
connections were subjected to shear force and a
bending moment, in the second case, the connections
were subjected to shear force, a bending
moment and an axial compressive force. To
take into account the real behavior of these connections,
an approach treating of the contact-
friction problem between the base plate
and the concrete foundation is retained. The
method of approach is based on a unilateral contact
law in which a Coulomb friction is added.
The numerical resolution is ensured by the refined
Lagrangian method. The moments-rotations
curves, the flexibility factor according to
the distance of the top of base plate curves are
drawn. The fixity degrees of the connections
are determinate and their influence on the loads
and deformations are evaluated. |
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