Two types of connection are generally considered in the design of steel
structures in practice. These are classified as completely rigid (moment) and simple
(shear) connections. In theory, completely rigid connections can not undergo rotation
and simple connections can not transfer moment. However, in reality rigid
connections have a relative flexibility which makes them to rotate and simple
connections have some reserve capacity to transfer moments. In many modern design
specifications, this fact is realized and another type which is called partially
restrained or semi-rigid connection is introduced. These types of connections have
got the transfer of some beam moment to column together with shear. However,
there is a lack of information on the amount of moment transferred and rotation of
connection during the action of the moment transfer. The only way to quantify the
moment and rotation of the partially restrained connections is to draw momentrotation
curves. Nevertheless, drawing such curves requires great amount of
expenses for experiments. Taking these into account, the use of finite elements with
the help of increased computational power is one way to obtain moment-rotation
curves of connections. Available test results guides the finite element analysis for justifications. So
these analyses can be further implemented into design functions. This thesis is
intended to conduct 3-D non-linear finite element analyses to compliment with tests
results for different types of semi-rigid connections with angles and compare them
with mathematical models developed by different researchers.
| Identifer | oai:union.ndltd.org:METU/oai:etd.lib.metu.edu.tr:http://etd.lib.metu.edu.tr/upload/12610835/index.pdf |
| Date | 01 July 2009 |
| Creators | Uslu, Cafer Harun |
| Contributors | Saritas, Afsin |
| Publisher | METU |
| Source Sets | Middle East Technical Univ. |
| Language | English |
| Detected Language | English |
| Type | M.S. Thesis |
| Format | text/pdf |
| Rights | To liberate the content for public access |
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