BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Memento EPFL//
BEGIN:VEVENT
SUMMARY:Modeling of Steel-Concrete Composite Bridges using equivalent trus
 ses.
DTSTART:20111110T110000
DTSTAMP:20260506T203321Z
UID:1ed034b55008a87d5db4ced5bc2b2e9c6cc4c7249c9919e5ce8b17c8
CATEGORIES:Conferences - Seminars
DESCRIPTION:Theodoros Adamakos\nPlane grillages and Finite Element Models 
 are widely used for the design of bridges. In a grillage idealization the 
 entire superstructure of the bridge is suitably represented by different s
 ets of bar elements. On the other hand  the finite element method makes us
 e of plane and solid elements for the three dimensional representation of 
 the structure. Although these models are generally accepted as sufficient 
 accurate  they are associated with some drawbacks. To overcome the difficu
 lties of plane grillage and finite element analysis  a new improved way of
  modeling steel composite bridges will be presented. \n The proposed model
  is based on the simulation of steel I-girders through the use of equivale
 nt trusses. Τhe concrete slab is suitably represented by a set of bar ele
 ments. In contrast to the grillage model  which is usually used for the an
 alysis of bridges  the recommended 3D-Model allows for a more reliable pre
 diction of deformations and internal forces while it allows for the introd
 uction of secondary members that play an important role in the bridge beha
 vior. Besides  the proposed model can be used for a buckling analysis of t
 he steelwork during concreting  offering the buckling shapes and the criti
 cal load factors.\n The new method of modeling is deemed accurate even for
  the analysis of curved and skewed bridges while it can predict the specia
 l behavior of this type of bridges. Worked examples are provided to illust
 rate the set up procedure of the proposed modeling and to compare its resu
 lts with corresponding finite elements models. The work presented in this 
 paper is a part of a research project  which is carried out in the Nationa
 l Technical University of Athens for modeling steel and composite bridges.
LOCATION:GC B3 424
STATUS:CONFIRMED
END:VEVENT
END:VCALENDAR