This paper presents the results of a recent field test carried out before opening phases Szapáry motorway bridge across Tisza River in central Hungary. The evaluation was based on static and dynamic load tests that provided information deflection, stresses, mode shapes along bridge. structure has two large continuous independent steel box girders cover spans floodplain river. Various configurat...

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...

Based on the conceptions of energy dissipation, multi-failure and safety protection of structure, a new energy dissipation-based multi-level control system for unseating failure prevention of concrete girder bridges subjected to earthquake is proposed. The control system provides respectively two different functions including energy dissipation-based displacement restriction and unseating preve...

Probabilistic assessment on the code-specified impact factors of RC decks is investigated by means of a three-dimensional traffic-induced dynamic response analysis of bridges combined with the Monte Carlo simulation technique. The random variables considered in the simulation are the roadway roughness, bump height, traveling position of vehicles, vehicle running speed and axle load of three-axl...

Distortion-induced fatigue cracking in unstiffened web gaps is common in steel bridges. Previous research by the Minnesota Department of Transportation (Mn/DOT) developed methods to predict the peak web gap stress and maximum differential deflection based upon field data and finite element analyses from two skew supported steel bridges with staggered bent-plate and cross-brace diaphragms, respe...

the first step in the design of plate girder is to estimate the self-weight of it. although empirical formulae for the same are available, the level of their accuracy (underestimate or overestimate) with respect to actual self-weight is not known. in this paper, optimized sections are obtained for different spans subjected to different live load carrying capacities and self-weights are estimate...

In order to study the flutter of long-span pedestrian suspension bridge and its aerodynamic control, a 420m-span is used as an engineering example, wind-induced vibration seven particular sections studied by wind tunnel tests, soft phenomenon two kinds identified. The results show that fairing wind-retaining plate measures are not necessarily effective improve stability bridge, these may reduce...