Numerical Simulation and Development of a Simplified Analysis Model for Semi-Rigid, Partial-Strength Composite Connections in Steel- and Concrete (NUSI)

The project at a glance

Start date:

01 Dec 2005
Duration in months:

48
Funding:

ArcelorMittal
Principal Investigator(s):

Christoph ODENBREIT

About

The present work deals with the load bearing and rotational behaviour of composite connections in steel and concrete constructions. For typical buildings, composite connections are assumed to be rigid or pinned. This assumption can lead to uneconomic structures. A design concept for the estimation of the available rotation capacity, the initial stiffness and the moment bearing capacity of semi-rigid connections is presented. On the basis of the plastic hinge theory diagrams were developed to prove the load carrying capacity and the serviceability of composite beams with semi-rigid connections. The presented design model is based on the evaluation of 9 self conducted tests and on the evaluation of 74 tests on composite connections from all over Europe. The availability of the model was proved by intensive nonlinear finite element simulations. Research Assistant: Christoph HAHN PhD-Thesis Title: Zur Rotationskapazität von Verbundanschlüssen bei der Bemessung nach dem Fließgelenkverfahren PhD-Thesis URL: https://hdl.handle.net/10993/15666