The research described in this paper focuses on the application of modal strain techniques on a multi-girder bridge superstructure with the objectives of identifying the presence of damage and detecting false damage diagnosis for such structures. The case study is a one-third scale model of a slab-on-girder composite bridge superstructure, comprised of a steel-free concrete deck with FRP rebars...

Various theories and analytical formulations were implemented exploited in the 1980s 1990s for design of bridge beams or decks curved horizontal plane subjected to out-of-plane loads. Nowadays, Finite Element Method (FEM) is a valid tool analysis structures with complex geometries and, therefore, development sophisticated not needed anymore. However, they are still useful validation FE models. ...

To the 36 meters crane girder with trapezoidal variable cross-section in a steel plant, finite element model is established reasonably according its actual size. The calculation of crane girder structure was introduced by using the finite element analysis software ANSYS. The local stress state of the cross-section is investigated and the stress concentration position of variable cross-section i...

In order to accurately calculate the cross-sectional stresses and deflections of improved composite box girder with corrugated steel webs, control differential equations boundary conditions are established based on energy variational principle, taking into account effects web properties, shear lag, deformation. A cantilever is used as a numerical example. The influence width span ratio bending ...

Lamb waves in plates and in cylindrical pipes have been the subject of extensive study, largely because they propagate great distances with little attenuation, and can therefore be used to detect flaws. In this paper we report finite element simulations and experimental studies of Lamb waves in steel bridge girder geometries. In our studies the Lamb waves are generated by PZT wafer-type transdu...