3 / 3
Structural and Civil Engineering Research
June 06-07, 2019 | Paris, France
Page 21
Research & Reviews: Journal of Engineering and Technology
ISSN: 2319-9873
Civil Engineering 2019
International Conference on
A
truck running on a highway collides with the main girder of a bridge
over the highway occasionally. The influence of the damage due to the
collision on the mechanical behavior of the bridge must be evaluated for the
safety of traffic on the bridge immediately. Yet it is not an easy task, since the
mechanical behavior of a deformed girder has not been studied much. One
of the authors has been involved in the safety evaluation of a steel girder
bridge damaged by collision. The bridge consisted of two steel main-girders,
one of which was badly damaged: the web was deformed transversely; some
transverse stiffeners were buckled; some other stiffeners were separated from
the welds on the web; and some bolted connections between lateral struts
and the web were broken. Based on the information on the actual damage of
this bridge, the collision load was estimated by the 3-D finite element analysis
and the deformation of the main girder was reproduced. The load-carrying
capacities of the main girder without damage, the main girder damaged by
collision, the main girder with larger damage were then studied numerically.
The results indicate that the damage influences the load-carrying capacity, but
the influence is limited even though the deformation is much larger than the
fabrication error allowed in the bridge design codes.
Collision damage and influence on
mechanical performance on steel
bridge girder
Eiki Yamaguchi, Takuya Amamoto and Yukito Tanaka
Kyushu Institute of Technology, Japan
Biography
Eiki Yamaguchi has completed his PhD from Pur-
due University, USA. He is currently the Professor at
Department of Civil Engineering, Kyushu Institute of
Technology,Japan.Hehaspublishedmore than100
papers and serves as Editorial Board Members of
Journal of Constructional Steel Research and Inter-
national Journal of Advanced Steel Construction
as
well as International Advisory Committee Members
of several international conferences. His expertise
includes applied/structural mechanics, steel struc-
tures and bridges.
Eiki Yamaguchi et al., JET 2019, Volume:8